Entries |
Document | Title | Date |
20080205521 | Dpcm Coding Method of Video Signals - In a method for coding and decoding indicator data (d(x, y), S) are compared to a criterion (T). If the indicator data meet the criterion, an absolute value (Hival/Loval) is inserted instead of a predicted value based on differential coding. This amounts to a bypass of the differential coding loop, which reduces or eliminates oscillatory behavior in such loop, thereby reducing smearing of text parts of a compound image. The absolute values are preferably dynamically determined on the basis of previous predicted values. | 08-28-2008 |
20080225950 | Scalable architecture for video codecs - In one embodiment, a method for parallel processing of blocks in a decoding process is provided. A plurality of blocks for a picture is received. The picture may have the plurality of blocks arranged in a first order. The blocks in the plurality of blocks may be pre-processed to determine data dependency information for blocks. In one embodiment, the blocks in the picture are all pre-processed to determine the data dependency information for every block in the picture if possible. Blocks that do not have data dependencies are then determined and sent for parallel processing in processing units. Also, blocks that still have data dependencies are not processed until the data dependency information becomes available. For example, an inter-coded block may be decoded and information for the decoded block is used to decode the intra-coded block. At this point, these blocks may be sent for processing in the processing units. | 09-18-2008 |
20080240240 | MOVING PICTURE CODING APPARATUS AND METHOD - A moving picture coding apparatus includes a computing unit configured to compute a distortion robustness indicating degree of imperceptibility of coding distortion in a region to be coded in an input picture, an estimation unit configured to estimate coding distortions based on a first prediction residual of an intra predicted picture, and a second prediction residual of an inter predicted picture, an estimation unit configured to estimate code lengths to be generated when coding the first and second prediction residuals, a computing unit configured to compute coding costs of the first and second prediction residuals by weighted addition of the coding distortions and code lengths so that effect of the code lengths more increases than that of the coding distortions as the distortion robustness increases, a selection unit configured to select one of the first and second prediction residuals for which the coding cost is minimized. | 10-02-2008 |
20080291999 | Method and apparatus for video frame marking - Method and apparatus for marking individual video frames of an H.264/AVC standard compliant or equivalent digital video stream. Each video frame in a H.264/AVC video stream is conventionally divided into NAL units. There are typically a number of NAL units for each video frame. There is specified in the H.264/AVC standard the SEI (Supplemental Enhancement Information) type. This type includes the user data unregistered type, which can contain arbitrary data. In the present method and apparatus, an NAL unit of this type is provided at the beginning of each video frame, preceding the other NAL units associated with that video frame. The data contained in that special SEI unit is typically control information for downstream control of use of the video content. Examples of the type of control information are stream positioning data such as a video frame number; stream bit rate, such as normal, fast forward; decryption data, such as a decryption key or key derivation seed; and validation elements, such as a checksum or hash function value or signature. | 11-27-2008 |
20090022223 | HIGH QUALITY, LOW MEMORY BANDWIDTH MOTION ESTIMATION PROCESSOR - An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) copy a plurality of first reference samples of a first reference image from an external memory, the first reference samples being proximate a first position within the first reference image and (ii) generate a first motion vector corresponding to a first current block of a current image by searching among the first reference samples. The second circuit may be configured to (i) copy a plurality of second reference samples of the first reference image from the external memory, the second reference samples being (a) proximate a second position within the first reference image and (b) non-adjacent the first reference samples and (ii) generate a second motion vector corresponding to the first current block by searching among the second reference samples. | 01-22-2009 |
20090080522 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 03-26-2009 |
20090154559 | Redundant Data Dispersal In Transmission Of Video Data Based On Frame Type - The transmitting end of a content distribution system selectively employs a redundancy mechanism to encoded video data based on the frame type of each frame being transmitted. In the event that a particular frame contains information upon which the decoding of multiple frames may depend, the transmitting end can apply a redundancy mechanism to redundantly distribute the data of the frame throughout a set of data segments, each of which is separately transmitted via the network to the receiving end. Otherwise, in the event that a particular frame to be transmitted does not contain substantial information upon which the decoding of multiple frames may depend, the loss of some or all of the data of the frame may not appreciably affect the presentation of the video content at the receiving end and thus the transmitting end can forgo application of the redundancy mechanism to such frames so as to avoid unnecessarily processing and reduce the overall network bandwidth used to transmit the encoded video data. | 06-18-2009 |
20090168879 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 07-02-2009 |
20090175338 | Methods and Systems for Inter-Layer Image Prediction Parameter Determination - Aspects of the present invention are related to systems and methods for predicting a prediction parameter which may be used in the prediction of high dynamic range image elements from low dynamic range image data. | 07-09-2009 |
20090262815 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 10-22-2009 |
20090268817 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 10-29-2009 |
20100002768 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 01-07-2010 |
20100027658 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 02-04-2010 |
20100034267 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 02-11-2010 |
20100054334 | METHOD AND APPARATUS FOR DETERMINING A PREDICTION MODE - A method and apparatus for determining a prediction mode which is used during encoding of a current block is provided. In the method and apparatus, a prediction mode candidate group to be used for the current block is determined based on a prediction mode for a block positioned at the same location on a reference picture as a location of the current block encoded, predictive coding is performed on the current block by using predictive modes included in the prediction mode candidate group. Thus, image prediction efficient is improved, and the time and number of calculations required for prediction mode determination are reduced. | 03-04-2010 |
20100118954 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 05-13-2010 |
20100118955 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 05-13-2010 |
20100150239 | MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE ENCODING METHOD, MOVING PICTURE ENCODING PROGRAM, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM - In a moving picture encoding apparatus | 06-17-2010 |
20100202522 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202523 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202524 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202525 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202526 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202527 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202528 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202529 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100202530 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-12-2010 |
20100208815 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 08-19-2010 |
20100208816 | MOTION PICTURE ENCODING DEVICE AND MOTION PICTURE DECODING DEVICE - When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly. | 08-19-2010 |
20100239007 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239008 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239009 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239010 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239011 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239012 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239013 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100239014 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 09-23-2010 |
20100246677 | VIDEO CODING - A sequence to be encoded is divided into a plurality of temporal portions or chunks. The sequence is then analysed to determine for each chunk, in accordance with a plurality of encoding quality settings, data establishing the relationship between the quality settings and (i) a quality metric for the portion and (ii) the number of bits generated by encoding the portion at that quality setting. Given a target quality, a target bit rate is then set (or vice versa); then one chooses a set of quality settings, one per chunk, that tends to minimise a combined quality cost for the sequence within the constraint that transmission of encoded video at the target bit rate via transmitting and receiving buffers of specified size and initial receiver buffer fullness shall not cause underflow nor overflow. The combined quality cost is the sum of individual quality costs each of which is a function of the deviation of the quality metric of the respective encoded portion from the target quality, the function being such that the cost generally increases as the absolute value of the deviation increases. The sequence is then encoded using the chosen quality settings. | 09-30-2010 |
20100254459 | INTRA PREDICTION MODE SELECTING APPARATUS AND METHOD THEREOF - An intra prediction mode selecting method is disclosed. First, a compress profile and a frame resolution of a frame data are received. Next, a plurality of corresponding prediction modes are selected according to the compress profile and the frame resolution, and the selected prediction modes are scheduled for sequentially calculating a plurality of corresponding cost functions. Finally, the cost functions are compared to select one of the prediction modes to serve as a prediction mode of the frame data. | 10-07-2010 |
20100266013 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266014 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected | 10-21-2010 |
20100266015 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266016 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266017 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266018 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266019 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266020 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266021 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266022 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266023 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266024 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266025 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266026 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266027 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266028 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266029 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266030 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266031 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266032 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266033 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266034 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266035 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266036 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266037 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266038 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266039 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100266040 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-21-2010 |
20100272175 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-28-2010 |
20100272176 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-28-2010 |
20100272177 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-28-2010 |
20100272178 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-28-2010 |
20100272179 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-28-2010 |
20100272180 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 10-28-2010 |
20100278237 | DATA PROCESSING CIRCUIT AND PROCESSING METHOD WITH MULTI-FORMAT IMAGE CODING AND DECODING FUNCTION - The invention discloses a data processing circuit having a multi-format image coding and decoding function and a processing method thereof. The data processing circuit includes a retrieving unit, multiple executing units and an instruction decoding unit. The retrieving unit is used for retrieving multiple operation instructions and multiple original data from a memory. Each executing unit is used for executing an image format coding and decoding instruction to process multiple original data to multiple corresponding resulting data. The instruction decoding unit is used for analyzing the operation instructions, generating the corresponding image format coding and decoding instructions and outputting the image format coding and decoding instructions to the corresponding executing units according to the performance of the executing units. | 11-04-2010 |
20100278238 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278239 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278240 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278241 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278242 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278243 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278244 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278245 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278246 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278247 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278248 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278249 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278250 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278251 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278252 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278253 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278254 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278255 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278256 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278257 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278258 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278259 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278260 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278261 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278262 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278263 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278264 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100278265 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 11-04-2010 |
20100284463 | METHOD OF CODING AND DECODING IMAGE - A method of simplifying the arithmetic operation in a global motion compensation process approximates the motion vector field of the whole image without using many parameters. Motion vectors in the global motion compensation are found by the interpolation and/or extrapolation of the motion vectors of a plurality of representative points | 11-11-2010 |
20100309979 | MOTION ESTIMATION FOR NOISY FRAMES BASED ON BLOCK MATCHING OF FILTERED BLOCKS - In one method embodiment, receiving plural frames of a video sequence, the plural frames corrupted with noise; filtering out the noise from the plural frames; block matching the filtered frames to derive a first set of motion vectors; scaling the first set of motion vectors; deriving a single scaled motion vector from the scaled motion vectors; and block matching the plural frames based on the scaled motion vector to derive a refined motion vector. | 12-09-2010 |
20110007801 | Pixel Prediction for Video Coding - Method of encoding an input video frame into an encoded video frame. The method comprises the steps of disassembling the input video frame into a plurality of blocks of pixels; and for each block being a current block, generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, and generating a reconstructed block from the residual block and the predicted block, generating the encoded video frame from the residual block, creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block, wherein the aligned predicted block is used in the steps of generating the residual block and generating the corresponding reconstructed block. A corresponding method for decoding the encoded video frame into a decoded video frame also uses a step of creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block. | 01-13-2011 |
20110064137 | VIDEO ENCODING APPARATUS - There is provided a video encoding apparatus allowing for enhanced video encoding speed according to the H.264 video coding standard. The video encoding apparatus allows the memories included in the video encoding apparatus to be shared by a plurality of elements through the rearrangement and the structural change of the memories considering an efficient hierarchical motion estimation algorithm. Therefore, the video encoding apparatus has the effects of reducing the amount of transmitted and received data between the frame memory and the video encoding apparatus and enhancing video encoding speed. | 03-17-2011 |
20110150089 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS FOR MOTION COMPENSATION PREDICTION - A video encoding method and apparatus to select one combination, for each block of an input video signal, from a plurality of combinations. Each combination includes a predictive parameter and at least one reference picture number determined in advance for the reference picture. A prediction picture signal is generated in accordance with the reference picture number and predictive parameter of the selected combination. A predictive error signal is generated representing an error between the input video signal and the prediction picture signal. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. | 06-23-2011 |
20110200105 | PREDICTED PIXEL VALUE GENERATION PROCEDURE AUTOMATIC PRODUCING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING METHOD, APPARATUS THEREFOR, PROGRAMS THEREFOR, AND STORAGE MEDIA WHICH STORE THE PROGRAMS - An automatic producing method for a predicted value generation procedure that predicts a value of an encoding target pixel by using a previously-decoded pixel. A parent population is generated by randomly producing predicted value generation procedures each of which is indicated by a tree structure, and a plurality of predicted value generation procedures are selected as parents from the parent population. One or more predicted value generation procedures are generated as children based on a predetermined tree structure developing method which subjects the selected predicted value generation procedures to a development where an existing predicted value generation function can be an end node of a tree. A predicted value generation procedure having a best estimation cost is selected from among the predicted value generation procedures as the parents and children, where the sum of an information content for representing the tree structure and an amount of code evaluated by a predicted pixel value obtained by the tree structure is used as an estimation cost. A final predicted value generation procedure is produced by iterating the relevant operation. | 08-18-2011 |
20110243230 | Multiple Predictor Sets for Intra-Frame Coding - An apparatus comprising a processor configured to receive a current block of an image, select an optimal prediction mode of a plurality of prediction modes for the current block, wherein the selected prediction mode corresponds to a selected one of a plurality of group-numbers and a selected one of a plurality of index-numbers, predict one of the plurality of group-numbers based on a first known group-number and a second known group-number, wherein the predicted group-number is predicted independent from any known index-numbers, clear a first flag when the predicted group-number matches the selected group-number, and set the first flag and encode the selected group-number into a coded data stream when the predicted group-number does not match the selected group-number, wherein the first flag is located in an overhead of the coded data stream. | 10-06-2011 |
20110286523 | METHOD AND APPARATUS FOR EFFICIENT HARDWARE MOTION ESTIMATION - There is provided a method of Motion Estimation in digital video, comprising carrying out an initial search to determine an initial search best candidate motion vector for a source macroblock, carrying out a main search to determine a main search best candidate motion vector for a source macroblock, carrying out a prediction search, centred on the best candidate from the initial search, to determine a prediction search best candidate motion vector for a source macroblock, carrying out a first extended search, centred on the best result from the initial, main and prediction searches, to determine a first extended search best candidate motion vector for a source macroblock, carrying out a second extended search, centred on the best result from the initial, main, prediction and first extended searches, to determine a second extended search best candidate motion vector for a source macroblock, and providing the second extended search best candidate motion vector to a subsequent video encoding process. There is also provided apparatus adapted to carry out the Motion Estimation in digital video method. | 11-24-2011 |
20110293005 | NONLINEAR, PREDICTION FILTER FOR HYBRID VIDEO COMPRESSION - A method and apparatus for non-linear prediction filtering are disclosed. In one embodiment, the method comprises performing motion compensation to generate a motion compensated prediction using a block from a previously coded frame, performing non-linear filtering on the motion compensated prediction in the transform domain with a non-linear filter as part of a fractional interpolation process to generate a motion compensated non-linear prediction, subtracting the motion compensated non-linear prediction from a block in a current frame to produce a residual frame, and coding the residual frame. | 12-01-2011 |
20110293006 | NONLINEAR, PREDICTION FILTER FOR HYBRID VIDEO COMPRESSION - A method and apparatus for non-linear prediction filtering are disclosed. In one embodiment, the method comprises performing motion compensation to generate a motion compensated prediction using a block from a previously coded frame, performing non-linear filtering on the motion compensated prediction in the transform domain with a non-linear filter as part of a fractional interpolation process to generate a motion compensated non-linear prediction, subtracting the motion compensated non-linear prediction from a block in a current frame to produce a residual frame, and coding the residual frame. | 12-01-2011 |
20110293007 | MOVING PICTURE CODING METHOD AND MOVING PICTURE DECODING METHOD - According to a picture coding method of the present invention, a coded picture identified by a picture number is stored, as a reference picture, into a storage unit; commands indicating correspondence between picture numbers and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted. At that time, information indicating the maximum reference index value is coded and included into the coded image signal, and the commands indicating correspondence between at least one picture number and a plurality of reference indices are generated. | 12-01-2011 |
20120063514 | METHOD FOR PERFORMING HYBRID MULTIHYPOTHESIS PREDICTION DURING VIDEO CODING OF A CODING UNIT, AND ASSOCIATED APPARATUS - A method for performing hybrid multihypothesis prediction during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing motion vector derivation of a portion of the sub-coding units. More particularly, the step of performing motion vector derivation of the portion of the sub-coding units further includes: deriving a plurality of motion vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit of the portion of the sub-coding units from at least one other sub-coding/coding unit or by performing motion estimation. The method further includes performing multihypothesis motion-compensated prediction on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values derived from the plurality of motion vectors as a predicted pixel value of the specific sub-coding unit. An associated apparatus is also provided. | 03-15-2012 |
20120147957 | IMAGE ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE THEREFOR - A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency. | 06-14-2012 |
20120183068 | High Efficiency Low Complexity Interpolation Filters - Embodiments for high efficiency low complexity interpolation filters for High Efficiency Video Coding are disclosed herein, specifically novel techniques for a video compression system. In order to estimate and compensate sub-pel displacements, the image signal on these sub-pel positions is generated by an interpolation process. In HEVC, sub-pel pixel interpolation is performed using filters. Generally, the filter may have 8 taps to determine the sub-pel pixel values for sub-pel pixel positions, such as half-pel and quarter-pel positions. The taps of an interpolation filter weight the integer pixels with coefficient values to generate the sub-pel signals. Different coefficients may produce different compression performance in signal distortion and noise. | 07-19-2012 |
20120189055 | MOTION VECTOR PREDICTION - A method of coding video data includes determining a candidate motion vector for each of one or more candidate portions of a video frame and determining a current motion vector for a current portion of a current frame. The current motion vector identifies a portion of a reference frame that at least partially matches the current portion of the current frame. The method also includes calculating a motion vector difference between the current motion vector and each of the candidate motion vectors, selecting one of the candidate motion vectors based on the calculated motion vector differences, signaling an index identifying the candidate portion having the selected one of the candidate motion vectors, and signaling the corresponding motion vector difference calculated with respect to the selected one of the candidate motion vectors. | 07-26-2012 |
20120201301 | VIDEO CODING WITH FINE GRANULARITY SPATIAL SCALABILITY - The disclosure is directed to video coding techniques that support spatial scalability using a generalized fine granularity scalability (FGS) approach. Various degrees of spatial scalability can be achieved by sending spatially scalable enhancement layers in a generalized FGS format. Spatially scalable enhancement bitstreams can be arbitrarily truncated to conform to network conditions, channel conditions and/or decoder capabilities. Coding coefficients and syntax elements for spatial scalability can be embedded in a generalized FGS format. For good network or channel conditions, and/or enhanced decoder capabilities, additional bits received via one or more enhancement layers permit encoded video to be reconstructed with increased spatial resolution and continuously improved video quality across different spatial resolutions. The techniques permit spatial scalability layers to be coded as FGS layers, rather than discrete layers, permitting arbitrary scalability. The techniques may include features to curb error propagation that may otherwise arise due to partial decoding. | 08-09-2012 |
20120201302 | RECORDING MEDIUM HAVING RECORDED THEREON CODED INFORMATION USING PLUS AND/OR MINUS ROUNDING OF IMAGES - A method of decoding images including the steps of: extracting motion vector information from input information to be decoded; synthesizing a prediction image by performing motion compensation using the motion vector information and a reference image which is a previously decoded image; and synthesizing a decoded image by adding the prediction image to an error image, wherein the motion compensation includes specifying either a positive rounding method or a negative rounding method for interpolating intensity values of pixels in performing the motion compensation. | 08-09-2012 |
20120201303 | METHOD AND DEVICE FOR ENCODING AND DECODING VIDEOS - The embodiments of the present invention provide a method and a device for encoding and decoding videos, and relate to the communication field, and an efficient transformation matrix corresponding to features of each residual block is selected for transformation, which therefore improves encoding efficiency. The solution provided in an embodiment of the present invention is: generating a prediction residual according to input video data; selecting a set of best transformation matrixes among multiple candidate transformation matrixes according to an intra-frame prediction mode and rate-distortion criteria to perform transform-coding on the prediction residual and obtain a transformation result; and generating an encoded stream according to the transformation result and selected transformation matrix index information. | 08-09-2012 |
20120230407 | Interpolation Filter Selection Using Prediction Index - In one embodiment, a method for encoding or decoding video content is provided. The method includes determining a set of interpolation filters for use in interpolating sub-pel pixel values and a mapping between interpolation filters in the set of interpolation filters and different prediction indexes of the video content. A unit of video content is received and a prediction index is determined in a plurality of prediction indexes that are used to determine a prediction block for the unit of video content. The method then determines an interpolation filter in the set of interpolation filters based on a mapping between the interpolation filter and the prediction index to interpolate a sub-pel pixel value for use in a temporal prediction process for the unit of video content. | 09-13-2012 |
20120236939 | Sub-band video coding architecture for packet based transmission - Sub-band video coding architecture for packet based transmission. Video processing includes converting of a frame or picture of a video signal into a number of respective sub-bands or sub-frames (e.g., such that each respective one is a respective subsampled version of an original frame or picture) and subsequent assembly thereof into a reconstructed frame or picture. The reconstructed frame or picture then undergoes video encoding to generate an output bitstream that may subsequently undergo appropriate processing (e.g., packetization, continuous time signal generation, etc.) to generate a signal for transmission via one or more communication the links. Characteristics associated with each respective sub-band or sub-frame may be similar (e.g., similar characteristics) or different (e.g., two or more sub-bands or sub-frames have different characteristics, such as different respective number of pixels, aspect ratios, etc.). Respective sub-frames may undergo video encoding and transmission. | 09-20-2012 |
20120263234 | Data Processing Method and Digital Image Processing Device for Reducing Blocking Effect - A data processing method for a digital image processing device includes: acquiring an the intra-coded frame data and a predicted frame data; acquiring a first pixel value corresponding to a pixel in the intra-coded frame data; acquiring a second pixel value corresponding to the pixel in the predicted frame data; determining a third pixel value according to a first motion vector corresponding to the pixel in the intra-coded frame data and the first pixel value; determining a fourth pixel value according to a second motion vector corresponding to the pixel in the predicted frame data and the second pixel value; calculating an average of the first pixel value and the second pixel value, and accordingly generating a fifth pixel value; and determining a pixel value corresponding to the pixel in an interpolated frame data according to the third pixel value, the fourth pixel value and the fifth pixel value. | 10-18-2012 |
20120275518 | MOVING PICTURE CODING METHOD, APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - A moving picture coding method in which the position of a current I-slice for a current picture is shifted in the vertical direction of the current picture, and which includes (i) performing inter coding on a first P-slice without using a motion vector (Sa | 11-01-2012 |
20120275519 | ADAPTIVE WEIGHTING OF REFERENCE PICTURES IN VIDEO ENCODING - A video decoder, encoder, and corresponding methods for processing video data for an image block and a particular reference picture index to predict the image block are disclosed that utilize adaptive weighting of reference pictures to enhance video compression, where a decoder includes a reference picture weighting factor unit for determining a weighting factor corresponding to the particular reference picture index; an encoder includes a reference picture weighting factor assignor for assigning a weighting factor corresponding to the particular reference picture index; and a method for decoding includes receiving a reference picture index with the data that corresponds to the image block, determining a weighting factor for each received reference picture index, retrieving a reference picture for each index, motion compensating the retrieved reference picture, and multiplying the motion compensated reference picture by the corresponding weighting factor to form a weighted motion compensated reference picture. | 11-01-2012 |
20120275520 | MOTION VECTOR CODING AND DECODING METHODS - A coding apparatus includes a motion vector coding unit that codes an inputted motion vector. A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors of coded neighboring blocks. The predicted vector is generated by one of the following methods: motion vectors referring to the same picture are selected from among the motion vectors for the neighboring blocks; motion vectors of respective neighboring blocks are ordered in a, predetermined order, and the motion vectors of the same order rank are selected from the ordered motion vectors; and the predicted vector of a second motion vector of the current block is the first motion vector, and if the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled according to the temporal distance between the pictures. | 11-01-2012 |
20120281758 | Temporal Image Prediction - For frames sequentially functioning as a reference frame in a video sequence frame set, a motion estimate set is accessed. One motion estimate characterizes motion associated with pixels of each region of the reference frame in relation to regions of one frame of the set of frames, which is temporally displaced in time with respect to other frames in the set of frames. An additional motion estimate characterizes motion associated with pixels of each reference frame region in relation to a second frame of the set, which is temporally displaced from the one frame and other frames of the frame set. A temporal image prediction set, corresponding to the first and additional motion estimate, is predicted, based on an alignment of the reference frame regions over the frame set. The temporal image predictions are blended and a temporal predictor is generated over the frame set based on the blending. | 11-08-2012 |
20120294362 | METHOD AND DEVICE FOR PROCESSING A VIDEO SEQUENCE - The present invention relates inter alia to a method for processing an encoded video sequence, said method comprising the steps of: —reconstructing the encoded video sequence and providing a plurality of neighboring pictures; —transforming each of said neighboring pictures or at least a coherent region of each neighboring picture into the coordinate system of a reference picture based on a motion model, and thereby generating a picture stack comprising transformed pictures; —combining the pixel amplitudes of corresponding pixels of said transformed pictures using a weighting function, to form a processed pixel amplitude for at least one image pixel of the reference picture; and —generating a processed picture based on said at least one processed pixel amplitude of said image pixel. | 11-22-2012 |
20130003842 | APPARATUS AND METHOD FOR IMAGE PROCESSING, AND PROGRAM - The present invention relates to apparatuses and methods for image processing by which improvement in prediction accuracy for B pictures, especially in the vicinity of edges of screens, is achievable, and programs therefor. A motion compensator is adapted to generate a prediction image by weighted prediction according to H.264/AVC standard by using the on-screen portion of a reference region in an L0 reference picture and to generate a prediction image by not using the off-screen portion of the reference region in the L0 reference picture and by restrictively using a reference region in an L1 reference picture. Specifically, in the L0 reference picture, as depicted in the reference region for L0 reference, the reference region is the dashed square on the outer side, but in actuality, the region within the dashed square on the inner side is restrictively used for prediction. The present invention is applicable to an image coding apparatus for performing encoding based on, for example, H.264/AVC standard. | 01-03-2013 |
20130051469 | METHOD AND APPARATUS FOR PROCESSING A VIDEO SIGNAL - The present invention relates to a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention determines the type of a block in accordance with the information which indicates whether to partition or merge the current block, acquires predicted values of each sub-block using restored peripheral pixels for each sub-block, and restores the current block using the acquired values. Here, pixels used for acquiring predicted values may include restored pixels for other sub-blocks contained in the current block, and the type of sub-blocks can be taken into account in a prediction mode for acquiring predicted values. | 02-28-2013 |
20130051470 | MOTION COMPENSATED FRAME GENERATING APPARATUS AND METHOD - A motion vector detector detects a motion vector, and outputs a block matching error value. An entire scroll determiner generates an entire scroll degree. Based on the block matching error value, a reliability generator generates reliability data indicating reliability of the motion vector. A reliability adjuster adjusts the reliability data so that a value of the reliability data is larger as the entire scroll degree is a value in which the degree at which the image scrolls entirely is larger, and outputs adjusted reliability data. Based on the adjusted reliability data, the interpolation pixel generator generates respective interpolation pixels composing a motion compensated frame. | 02-28-2013 |
20130077685 | REFERENCE PICTURE LIST CONSTRUCTION FOR VIDEO CODING - Techniques are described related to modifying an initial reference picture list. The example techniques may identify a reference picture in at least one of the reference picture subsets used to construct the initial reference picture. The example techniques may list the identified reference picture in a current entry of the initial reference picture list to construct a modified reference picture list. | 03-28-2013 |
20130077686 | IMAGE ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE THEREFOR - A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency. | 03-28-2013 |
20130083851 | METHOD AND APPARATUS FOR VIDEO ENCODING AND METHOD AND APPARATUS FOR VIDEO DECODING - Methods and apparatuses for encoding and decoding a video by using pixel unit bi-directional motion compensation are provided. According to the method of encoding a video, pixel unit motion compensation is performed on each pixel of a current block by using pixels of first and second reference pictures used for bi-directional motion prediction and compensation, in addition to block unit bi-directional motion compensation performed on the current block, and a bi-directional motion prediction value of the current block is generated by using results of the block unit bi-directional motion compensation and pixel unit motion compensation. | 04-04-2013 |
20130114716 | Differential Pulse Code Modulation Intra Prediction for High Efficiency Video Coding - A video codec comprising a processor configured to compute a reconstructed pixel based on a residual pixel and a first prediction pixel and compute a second prediction pixel in a directional intra prediction mode based on the reconstructed pixel, wherein the first and second prediction pixels are located in a same block of a video frame. A method for intra prediction comprising computing a prediction pixel adaptively based on a plurality of reconstructed neighboring pixels, wherein a distance between the prediction pixel and each of the plurality of reconstructed neighboring pixels is one. | 05-09-2013 |
20130114717 | GENERATING ADDITIONAL MERGE CANDIDATES - In generating a candidate list for inter prediction video coding, a video coder can perform pruning operations when adding spatial candidates and temporal candidates to a candidate list while not performing pruning operations when adding an artificially generated candidate to the candidate list. The artificially generated candidate can have motion information that is the same as motion information of a spatial candidate or temporal candidate already in the candidate list. | 05-09-2013 |
20130121416 | Reference Processing Using Advanced Motion Models for Video Coding - Processing a reference picture is described. A reference processing unit enables signaling of parameters such as motion model parameters, interpolation filter parameters, intensity compensation parameters, and denoising filter parameters. Methods for estimating the various parameters are also discussed. Processing improves quality of a reference picture prior to its use for prediction of a subsequent picture and thus improves the prediction. | 05-16-2013 |
20130163668 | PERFORMING MOTION VECTOR PREDICTION FOR VIDEO CODING - In general, techniques are described for performing motion vector prediction for video coding. A video coding device comprising a processor may perform the techniques. The processor may be configured to determine a plurality of candidate motion vectors for a current block of the video data so as to perform the motion vector prediction process and scale one or more of the plurality of candidate motion vectors determined for the current block of the video data to generate one or more scaled candidate motion vectors. The processor may then be configured to modify the scaled candidate motion vectors to be within a specified range. | 06-27-2013 |
20130177080 | IMAGE PROCESSING APPARATUS, IMAGE CAPTURING APPARATUS, AND PROGRAM - An exemplary image processing apparatus generates an interpolation frame to be inserted between two contiguous frames of a moving picture. The image processing apparatus includes: a motion vector calculation section configured to calculate a first motion vector by performing a matching operation between first and second frames, of a first frame, a second frame and a third frame of the moving picture contiguous with one another, and calculate a second motion vector by performing a matching operation between the second and third frames; and an interpolation frame generation section configured to generate an interpolation frame to be inserted between the second frame and the third frame through a process performed based on a magnitude of a difference vector between the first motion vector and the second motion vector. | 07-11-2013 |
20130182768 | METHOD AND APPARATUS FOR ENCODING / DECODING VIDEO USING ERROR COMPENSATION - According to the present invention, a method for decoding a video in a skip mode comprises the steps of: deriving a pixel value of an estimation block for a current block; deriving an error compensation value for the current block; and deriving a pixel value of a final prediction block using the pixel value of the prediction block and the error compensation value. According to the present invention, the amount of transmitted information is minimized, and the efficiency of video encoding/decoding is improved. | 07-18-2013 |
20130188711 | RECORDING MEDIUM HAVING RECORDED THEREON CODED INFORMATION USING PLUS AND/OR MINUS ROUNDING OF IMAGES - A method of decoding images including: extracting motion vector information from input information to be decoded; synthesizing a prediction image by performing motion compensation using the motion vector information and a reference image which is a previously decoded image; and synthesizing a decoded image by adding the prediction image to an error image, wherein the motion compensation includes specifying either a positive rounding method or a negative rounding method for interpolating intensity values of pixels in performing the motion compensation. | 07-25-2013 |
20130195188 | IMAGE CODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING METHOD, IMAGE DECODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS - An image coding method with increased coding efficiency using a limited memory bandwidth includes: determining blocks usable for merging as merging candidates; determining a block to be used for coding a current block to be coded from the merging candidates; and attaching a merging candidate index indicating the determined merging candidate to the bitstream. In the determining of a block, when a motion compensation size of the current block is a bi-prediction-prohibited size and the merging candidates include a merging candidate coded using bi-prediction, a prediction image of the current block is generated using coding information for uni-prediction instead of coding information for the bi-prediction of the merging candidate coded using bi-prediction. | 08-01-2013 |
20130223530 | Referenceable Frame Expiration - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 08-29-2013 |
20130223531 | VIDEO CODING USING TEMPORALLY COHERENT DYNAMIC RANGE MAPPING - A more efficient co-use of dynamic range mapping on the one hand and temporal prediction on the other hand such as, for example, in order to code HDR frame sequences, is achieved by exploiting the concept of weighted prediction in order to transition from the mapping parameter from the reference frame to the currently temporally predicted frame. By this measure, the temporal prediction does not fail and despite the frame-wise variation in the dynamic range mapping, encoding efficiency is, thus, maintained. As a favorable side aspect, weighted temporal prediction is already within the capabilities of existing video coding stages such as, for example, the H.264/AVC. | 08-29-2013 |
20130235934 | Redundant Data Dispersal In Transmission Of Video Data Based On Frame Type - The transmitting end of a content distribution system selectively employs a redundancy mechanism to encoded video data based on the frame type of each frame being transmitted. In the event that a particular frame contains information upon which the decoding of multiple frames may depend, the transmitting end can apply a redundancy mechanism to redundantly distribute the data of the frame throughout a set of data segments, each of which is separately transmitted via the network to the receiving end. Otherwise, in the event that a particular frame to be transmitted does not contain substantial information upon which the decoding of multiple frames may depend, the loss of some or all of the data of the frame may not appreciably affect the presentation of the video content at the receiving end and thus the transmitting end can forgo application of the redundancy mechanism to such frames so as to avoid unnecessarily processing and reduce the overall network bandwidth used to transmit the encoded video data. | 09-12-2013 |
20130251039 | IMAGE CODING METHOD AND IMAGE DECODING METHOD - Provided is an image coding method for performing intra prediction achieving higher coding efficiency. The method for coding image data on a block-by-block basis includes; generating a predicted block by predicting a current block; computing a difference between the current block and the predicted block; coding the difference computed in the computing; decoding the difference coded in the coding; and adding the difference decoded in the decoding to the predicted block to generate a decoded block, wherein the generating includes: detecting an edge in a previously decoded block corresponding to a block adjacent to the current block; and extrapolating or interpolating previously decoded image data corresponding to a pixel included in the block adjacent to the current block, along a direction of the edge detected in the detecting to generate the predicted block. | 09-26-2013 |
20130294513 | INTER LAYER MERGE LIST CONSTRUCTION FOR VIDEO CODING - A method of decoding video data includes receiving syntax elements extracted from an encoded video bitstream, determining a candidate list for an enhancement layer block, and selectively pruning the candidate list. The syntax elements include information associated with a base layer block of a base layer of the video data. The candidate list is determined at least in part on motion information associated with the base layer block. The enhancement layer block is in an enhancement layer of the video data. The candidate list includes at least one motion information candidate that includes the motion information associated with the base layer block. The candidate list includes a merge list or an AMVP list. Pruning includes comparing one or more motion information candidates and at least one motion information candidate associated with the base layer block that is in the candidate list. | 11-07-2013 |
20130301724 | Image Predict Coding Method, Image Predict Coding Device, Image Predict Coding Program, Image Predict Decoding Method, Image Predict Decoding Device, and Image Predict Decoding Program - A predictive coding system performs predictive encoding by determination of an optimum prediction mode from prediction methods for a pixel signal of a target block. A predicted signal is generated according to the determined mode, and a residual signal is determined. The residual signal and the optimum prediction mode are encoded to generate a compressed signal, which is decoded. The decoded signal is stored as a reconstructed picture sample. During encoding, a candidate prediction mode list is generated that contains elements of optimum prediction modes of previously-reproduced blocks neighboring the target block. A flag indicating whether the list contains an element corresponding to the optimum prediction mode is encoded, and an index to the corresponding element is encoded if the corresponding element is included in the list. The optimum prediction mode can be encoded based on identifying the elements in the list, unless no corresponding element appears on the list. | 11-14-2013 |
20130315308 | MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, MOVING PICTURE DECODING APPARATUS, AND MOVING PICTURE CODING AND DECODING APPARATUS - A moving picture coding method includes: coding a coding target block using a motion vector; generating a plurality of motion vector predictors; and coding the motion vector using one of the plurality of motion vector predictors generated in the generating of a plurality of motion vector predictors. In the generating of a plurality of motion vector predictors, a replacement vector which replaces a temporal motion vector predictor is added to the plurality of motion vector predictors when it is impossible to obtain the temporal motion vector predictor from a block which is included in a coded picture different from the coding target picture and corresponds to the coding target block. | 11-28-2013 |
20130315309 | MOTION PREDICTION OR COMPENSATION METHOD - Embodiments of the present invention provide a motion prediction or compensation method during a video coding and decoding process. A motion prediction or compensation method provided in the embodiments of the present invention includes: acquiring a candidate motion vector set; conducting a refined search for an optimal motion vector based on information of the candidate motion vector set; and performing motion prediction or compensation by using the motion vector acquired by the refined search. This improves coding performance and meanwhile maintains reasonable complexity. | 11-28-2013 |
20130336399 | METHOD AND APPARATUS FOR EFFICIENT SLICE HEADER PROCESSING - A method, apparatus, article of manufacture, and a memory structure for encoding or decoding a sequence comprising a plurality of pictures, each of the plurality of pictures partitionable into one or more slices, each of the one or more slices processed at least in part according to a slice header. In one embodiment, all the relative syntax and function calls under the condition of slice type equal to P or B are grouped together, and syntax describing the initial value for a quantization parameter to be used in coding blocks of data and deblocking related syntax are put before this group of syntax and function calls. | 12-19-2013 |
20140003518 | IMAGE ENCODING METHOD USING A SKIP MODE, AND A DEVICE USING THE METHOD | 01-02-2014 |
20140016701 | TEMPORAL MOTION VECTOR PREDICTION IN VIDEO CODING EXTENSIONS - A first reference index value indicates a position, within a reference picture list associated with a current prediction unit (PU) of a current picture, of a first reference picture. A reference index of a co-located PU of a co-located picture indicates a position, within a reference picture list associated with the co-located PU of the co-located picture, of a second reference picture. When the first reference picture and the second reference picture belong to different reference picture types, a video coder sets a reference index of a temporal merging candidate to a second reference index value. The second reference index value is different than the first reference index value. | 01-16-2014 |
20140037003 | MOTION COMPENSATION METHOD, PICTURE CODING METHOD AND PICTURE DECODING METHOD - A picture coding apparatus includes a motion vector estimation unit and a motion compensation unit. The motion vector estimation unit selects one method for deriving a motion vector of a block to be motion-compensated, depending on a motion vector of a block located in a corner of a decoded macroblock from among a group of blocks that compose the decoded macroblock corresponding to the current macroblock to be coded and determines the motion vector derived by the selected method for derivation to be a candidate of the motion vector of the current macroblock to be coded. The motion compensation unit generates a predictive image of the block to be motion-compensated based on the estimated motion vector. | 02-06-2014 |
20140044171 | MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM - A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. | 02-13-2014 |
20140044172 | MOTION VECTOR CODING AND DECODING METHODS - A motion vector coding apparatus includes a motion vector coding unit that codes a motion vector inputted from a motion vector detecting unit. A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors for previously coded neighboring blocks. The predicted vector is generated by one of: the motion vectors referring to the same picture are selected from among the motion vectors for the neighboring blocks; the motion vectors for neighboring blocks are ordered in the predetermined order and the motion vectors of the same order rank are selected; and the predicted vector for a second motion vector of the current block is the first motion vector, and when the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled based on temporal distance between the pictures. | 02-13-2014 |
20140044173 | MOTION VECTOR CODING AND DECODING METHODS - A motion vector coding apparatus includes a motion vector coding unit that codes a motion vector inputted from a motion vector detecting unit. A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors for previously coded neighboring blocks. The predicted vector is generated by one of: the motion vectors referring to the same picture are selected from among the motion vectors for the neighboring blocks; the motion vectors for neighboring blocks are ordered in the predetermined order and the motion vectors of the same order rank are selected; and the predicted vector for a second motion vector of the current block is the first motion vector, and when the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled based on temporal distance between the pictures. | 02-13-2014 |
20140072042 | METHOD OF DETERMINING MOTION VECTORS FOR BI-PREDICTIVE IMAGE BLOCK - In one embodiment, the method includes determining a motion vector of a current image block equal to a motion vector of an image block based on a reference picture index indicating a reference picture for the image block. For example, the motion vector of the current image block may be equal to the motion vector of the image block if the reference picture index indicates a long-term reference picture for the image block. | 03-13-2014 |
20140086325 | SCALABLE EXTENSIONS TO HEVC AND TEMPORAL MOTION VECTOR PREDICTION - In one example, a device includes a video coder configured to determine a first co-located reference picture for generating a first temporal motion vector predictor candidate for predicting a motion vector of a current block, determine a second co-located reference picture for generating a second temporal motion vector predictor candidate for predicting the motion vector of the current block, determine a motion vector predictor candidate list that includes at least one of the first temporal motion vector predictor candidate and the second temporal motion vector predictor candidate, select a motion vector predictor from the motion vector predictor candidate list, and code the motion vector of the current block relative to the selected motion vector predictor. | 03-27-2014 |
20140092968 | METHOD AND DEVICE FOR MOTION INFORMATION PREDICTION REFINEMENT - The invention concerns a method for encoding a multi-view video stream comprising at least two video sequences, comprising a step of motion information prediction for a square or rectangular block of a current picture of a current view from a list of candidate motion information predictors, a motion information predictor including at least a motion vector, and a step of entropic encoding of an item of information representative of the position of a selected motion information predictor in the list. The method of the invention comprises, for the encoding of a current block, determining in the list of candidate motion information predictors of the current block a motion information predictor comprising a disparity motion vector pointing to a block of a picture of a video sequence corresponding to a view different from the current view, and in case of positive determination, including in the list of candidate motion information predictors at least one refined motion information predictor comprising a refined disparity motion vector predictor obtained from the determined disparity motion vector so as to obtain a refined list of candidate motion information predictors. | 04-03-2014 |
20140098869 | Fused Region-Based VDR Prediction - An input image is divided into non-overlapping regions. For each of the non-overlapping regions, first output data is predicted with a first prediction function, parameters related thereto and region-specific input image data. For each region with prior-predicted neighbor regions, a pixel border portion, adjacent to the neighbor region, is defined. For the pixels in the defined border portion, second output data is predicted with a second prediction function, parameters related thereto, input image data from the border portion of the current region, and input prediction parameter data from the neighbor region. The first output prediction data is fused with the second output data to predict a final set of output prediction values. | 04-10-2014 |
20140105295 | MOVING IMAGE ENCODING METHOD AND APPARATUS, AND MOVING IMAGE DECODING METHOD AND APPARATUS - According to one embodiment, there is provided a moving image encoding method for performing an inter prediction. The method includes acquiring first predicted motion information and second predicted motion information from an encoded region including blocks including motion information and generating, if a first condition is satisfied, a predicted image of a target block using one of (1) the first predicted motion information and third predicted motion information, the third predicted motion information being acquired from the encoded region and being different from the first predicted motion information and the second predicted motion information, and (2) one of the first predicted motion information and the second predicted motion information. | 04-17-2014 |
20140105296 | IMAGE ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE THEREFOR - A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency. | 04-17-2014 |
20140105297 | METHOD OF PREDICTING A MOTION VECTOR FOR A CURRENT BLOCK IN A CURRENT PICTURE - A method of predicting a motion vector for a current block in a current picture includes obtaining, by a moving picture decoding device, a direction of a reference picture of the current picture, based on a display order of the reference picture and a display order of the current picture, obtaining, by the moving picture decoding device, at least three forward motion vectors for at least three blocks other than the current block based on the direction of the reference picture, wherein the at least three forward motion vectors correspond to the at least three other blocks, respectively, predicting, by the moving picture decoding device, a forward motion vector for the current block by using a median operation of the at least three forward motion vectors and decoding the current block in the current picture using the predicted forward motion vector for the current block. | 04-17-2014 |
20140105298 | INTER-FRAME PREDICTION CODING METHOD, DEVICE AND SYSTEM - Inter-frame prediction coding method, device and system are provided. The inter-frame prediction coding method includes: calculating distortions between a template area of current encoding block and each of M matching templates in L reference frames, to determine M offset vectors; acquiring M hypothesis prediction values of the encoding block to which the M matching templates correspond according to the determined M offset vectors, and calculating the template matching prediction value of the current encoding block according to the M hypothesis prediction values; comparing the template matching prediction value and original value of the current encoding block to acquire the residual of the current encoding block, and encoding the residual. The technical solution improves prediction performance of the video coding system and increases coding efficiency. | 04-17-2014 |
20140112390 | METHOD AND SYSTEM FOR PROCESSING B PICTURES WITH MISSING OR INVALID FORWARD REFERENCE PICTURES - Methods and systems for processing B pictures with missing or invalid forward reference pictures are disclosed. Aspects of one method may include decoding of a contiguous sequence of B pictures that immediately follow a first I picture after a sequence header. The decoding of the B pictures may handle video edit codes in the AVS1-P2 format and/or random access points. Some embodiments of the invention may discard B pictures that refer to invalid or missing forward reference pictures, while other embodiments of the invention may interpolate B pictures. For an invalid forward reference picture, the interpolation algorithm for generating pictures may use the invalid forward reference picture and the backward reference picture. For a missing decoded forward reference picture, as in a random access, the interpolation algorithm for generating pictures may use the backward reference picture. | 04-24-2014 |
20140126636 | METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR - Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a motion vector of the current block and the motion vector predictor of the current block. | 05-08-2014 |
20140133565 | METHOD AND APPARATUS FOR IMAGE ENCODING AND DECODING USING INTRA PREDICTION - Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values. | 05-15-2014 |
20140146888 | VIDEO ENCODING METHOD AND VIDEO DECODING METHOD - Provided is a video encoding/decoding technique for improving the compression efficiency by reducing the motion vector code amount. In a video decoding process, the prediction vector calculation method is switched from one to another in accordance with a difference between predetermined motion vectors among a plurality of motion vectors of a peripheral block of a block to be decoded and already decoded. The calculated prediction vector is added to a difference vector decoded from an encoded stream so as to calculate a motion vector. By using the calculated motion vector, the inter-image prediction process is executed. | 05-29-2014 |
20140153647 | MOVING PICTURE CODING APPARATUS, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM - A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority. | 06-05-2014 |
20140254678 | MOTION ESTIMATION USING HIERARCHICAL PHASE PLANE CORRELATION AND BLOCK MATCHING - Systems, apparatus, articles, and methods are described related to motion estimation using hierarchical phase plane correlation and block matching. | 09-11-2014 |
20140286420 | SKIP MACROBLOCK CODING - Various techniques and tools for encoding and decoding (e.g., in a video encoder/decoder) binary information (e.g., skipped macroblock information) are described. In some embodiments, the binary information is arranged in a bit plane, and the bit plane is coded at the picture/frame layer. The encoder and decoder process the binary information and, in some embodiments, switch coding modes. For example, the encoder and decoder use normal, row-skip, column-skip, or differential modes, or other and/or additional modes. In some embodiments, the encoder and decoder define a skipped macroblock as a predicted macroblock whose motion is equal to its causally predicted motion and which has zero residual error. In some embodiments, the encoder and decoder use a raw coding mode to allow for low-latency applications. | 09-25-2014 |
20140301463 | METHOD AND APPARATUS FOR VIDEO CODING AND DECODING - There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments of the method second motion information is decoded for a second block; two or more parameters of adjustment are determined for said second motion information in order to be used for decoding of a first block, said two or more parameters being selected among a spatial resolution scaling factor and/or offset, an inter-view scaling factor and/or offset, a disparity offset, a temporal scaling factor and/or offset, and/or zero or more other scaling factors and/or offsets. Said second motion information is adjusted/mapped with said two or more parameters; and said adjusted/mapped second motion information is utilized for decoding of the first block. | 10-09-2014 |
20140328401 | BI-DIRECTIONAL VIDEO COMPRESSION FOR REAL-TIME VIDEO STREAMS DURING TRANSPORT IN A PACKET SWITCHED NETWORK - A method, a system and a computer device for initiating bi-directional compression of a video stream in a packet switched network, based on delay tolerance of a service or application. A video frame recompression (VFR) utility determines an end-to-end (E2E) delay tolerance retrieved from a Real-time Transport Control Protocol (RTCP) report. The VFR utility then determines the actual expected delay based on a deep inspection of packet headers. The VFR utility utilizes a processing opportunity delay (which determines whether the E2E delay tolerance is greater than the actual expected delay) to reprocess video content comprising Intra-coded (I) pictures/frames and Predicted (P) frames to improve compression efficiency. The VFR utility may also utilize a complexity ratio which is a ratio of the I-Frame rate and the P-Frame rate to select frames for compression. The VFR utility recompresses video content by replacing P-Frames with B-Frames. | 11-06-2014 |
20140355682 | IMAGE PROCESSING WITH SEGMENTATION - An image region is identified by forming difference-image pixel values from the chosen image and at least one other image in the image sequence and accumulating those difference-image pixel values horizontally and vertically. Co-located horizontal and vertical accumulations are combined and utilised in identifying the region. | 12-04-2014 |
20140369412 | VIDEO DECODING DEVICE, VIDEO DECODING METHOD, VIDEO DECODING PROGRAM, AND VIDEO DECODING INTEGRATED CIRCUIT - With use of a simplified program or calculating device for motion compensation, a video decoding device decodes video data compressed by motion detection operations on macroblock units, as in the MPEG-4AVC standard. The video decoding device splits compressed data blocks of the prescribed size, 16×16 pixels for instance, to generate sub-blocks, which are smaller than the blocks and on which the video decoding device is able to execute motion compensation operations. The video decoding device duplicates a motion vector assigned to a given block to generate as many motion vectors as there are sub-blocks in the given block, and executes motion compensation on each sub-block using the corresponding duplicate motion vector. Data resulting from the motion compensation operation on each sub-block is combined to obtain a target block corresponding to the given block. | 12-18-2014 |
20150055704 | SUB-PU-LEVEL ADVANCED RESIDUAL PREDICTION - A prediction unit (PU) of a coding unit (CU) is split into two or more sub-PUs including a first sub-PU and a second sub-PU. A first motion vector of a first type is obtained for the first sub-PU and a second motion vector of the first type is obtained for the second sub-PU. A third motion vector of a second type is obtained for the first sub-PU and a fourth motion vector of the second type is obtained for the second sub-PU, such that the second type is different than the first type. A first portion of the CU corresponding to the first sub-PU is coded according to advanced residual prediction (ARP) using the first and third motion vectors. A second portion of the CU corresponding to the second sub-PU is coded according to ARP using the second and fourth motion vectors. | 02-26-2015 |
20150131724 | METHOD FOR PERFORMING HYBRID MULTIHYPOTHESIS PREDICTION DURING VIDEO CODING OF A CODING UNIT, AND ASSOCIATED APPARATUS - A method and apparatus for performing hybrid multihypothesis prediction during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing disparity vector (DV) derivation when the coding unit is processed by a 3D or multi-view coding tool or performing block vector (BV) derivation when the coding unit is processed by intra picture block copy (IntraBC) mode. The step of performing DV or BV derivation includes deriving a plurality of vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit from at least one other sub-coding/coding unit. The one other sub-coding/coding unit is coded before the corresponding DV or BV is derived for multihypothesis motion-compensated prediction of the specific sub-coding unit. A linear combination of a plurality of pixel values derived from the plurality of vectors is used as a predicted pixel value of the specific sub-coding unit. | 05-14-2015 |
20160014425 | SCALABLE VIDEO CODING USING INTER-LAYER PREDICTION CONTRIBUTION TO ENHANCEMENT LAYER PREDICTION | 01-14-2016 |
20160014427 | METHOD OF DETERMINING MOTION VECTORS FOR BI-PREDICTIVE IMAGE BLOCK | 01-14-2016 |
20160050412 | MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM - A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. | 02-18-2016 |
20160080753 | METHOD AND APPARATUS FOR PROCESSING VIDEO SIGNAL - The present invention provides a method and an apparatus for processing a video signal, and more particularly, a method and an apparatus for processing a video signal, which encode and decode the video signal. | 03-17-2016 |
20160112720 | Differential Pulse Code Modulation Intra Prediction for High Efficiency Video Coding - A video codec including a memory and a processor operably coupled to the memory. The processor is configured to compute a reconstructed pixel based on a residual pixel and a first prediction pixel and compute a second prediction pixel in a directional intra prediction mode based on the reconstructed pixel, where the first and second prediction pixels are located in a same block of a video frame. A method for intra prediction including computing a prediction pixel adaptively based on a plurality of reconstructed neighboring pixels, where a distance between the prediction pixel and each of the plurality of reconstructed neighboring pixels is one. | 04-21-2016 |
20160150232 | IMAGE PROCESSING APPARATUS AND METHOD - The present invention relates to an image processing apparatus and method that can generate a high-accuracy prediction image with a small amount of control information. | 05-26-2016 |
20160150246 | Methods And Systems For Image Intra-Prediction Mode Management - Embodiments of the present invention relate to methods and systems for ordering, communicating and applying pixel intra-prediction modes. | 05-26-2016 |
20160191923 | METHODS AND SYSTEMS FOR MASKING MULTIMEDIA DATA - Several methods and systems for masking multimedia data are disclosed. In an embodiment, a method for masking includes performing a prediction for at least one multimedia data block based on a prediction mode of a plurality of prediction modes. The at least one multimedia data block is associated with a region of interest (ROI). A residual multimedia data associated with the at least one multimedia data block is generated based on the prediction. A quantization of the residual multimedia data is performed based on a quantization parameter (QP) value. The QP value is variable such that varying the QP value controls a degree of masking of the ROI. | 06-30-2016 |
20160381386 | Parallel Intra-Prediction - Digital pictures may be encoded and decoded in a way that optimizes parallelization. Selected sections of a digital picture in a first list are encoded independently of encoding any of their neighbor sections. Sections in a second list located to the right of corresponding sections in the first list are encoded using at most the section to their immediate left. Sections in a third list located to the right of a corresponding section in the second list and immediately below a corresponding section in the first list are encoded using at most the sections to the immediate left, immediately above and immediately to its above-right. All other sections of the picture may be encoded in a normal manner. | 12-29-2016 |
20180025257 | GENERATING IMAGES USING NEURAL NETWORKS | 01-25-2018 |