Patent application number | Description | Published |
20080271079 | Extended Description to Support Targeting Scheme, and Tv Anytime Service and System Employing the Same - The present research relates to description supporting a targeting scheme, more particularly, to an extended description structure supporting a targeting scheme and a TV-Anytime service providing method and system employing the same based on Moving Picture Experts Group 21 (MPEG-21) Usage Environment Description (UED) tools. The TV-Anytime service providing system employing the extended description structure includes a service providing apparatus for generating package metadata including user information and usage environment information; and a user device for acquiring the package metadata including user information and usage environment information from the service providing apparatus through diverse access networks. | 10-30-2008 |
20080317124 | MULTI-VIEW VIDEO CODING SYSTEM, DECODING SYSTEM, BITSTREAM EXTRACTION SYSTEM FOR DECODING BASE VIEW AND SUPPORTING VIEW RANDOM ACCESS - A multi-view video coding (MVC) system, a decoding system, and a bitstream extraction system are provided for decoding a base view and supporting a view random access. The MVC system includes: a coding unit that codes the video signal to a base view and a multi-view; and a base view identifier adding unit that adds a base view identifier of the base view to a parameter set. | 12-25-2008 |
20090005581 | Method for Preparing 3-Hydroxytetrahydrofuran Using Cyclodehydration - Disclosed is a method of preparing 3-hydroxytetrahydrofuran using cyclodehydration. More particularly, this invention relates to a method of preparing 3-hydroxytetrahydrofuran, including subjecting 1,2,4-butanetriol to cyclodehydration under reaction conditions of a reaction temperature of 30˜180° C. and reaction pressure of 5000 psig or less in the presence of a strong acid cation exchange resin catalyst having a sulfonic acid group as an exchange group. According to the method of this invention, 3-hydroxytetrahydrofuran can be economically prepared at higher yield and productivity than when using conventional methods. | 01-01-2009 |
20090278844 | METHOD AND APPARATUS FOR ENCODING/DECODING 3D MESH INFORMATION INCLUDING STITCHING INFORMATION - Provided are encoding and decoding stitching information generated when the 3D mesh model that is the non-manifold or non-orientable model is converted into orientable and manifold models upon encoding the 3D mesh information of the 3D mesh model. The method of encoding 3D mesh information includes the steps of: encoding the 3D mesh information to output an encoded bitstream; encoding stitching information of elements contained in the 3D mesh information, the stitching information having a total number of duplicated original elements and, for each of the duplicated original elements, the duplication number, original-element identification information and duplicated-element identification information; and generating a packet of the bitstream, wherein the encoded stitching information is inserted into the packet. | 11-12-2009 |
20100141738 | METHOD AND SYSTEM FOR TRANSMITTING/RECEIVING 3-DIMENSIONAL BROADCASTING SERVICE - Provided is a method and system for transmitting/receiving broadcasting service. The method for transmitting a 3-dimensional broadcasting service includes: encoding a reference image and an additional image of the 3-dimensional broadcasting service to generate a reference image stream and an additional image stream; receiving a service map table defining the 3-dimensional broadcasting service; and transmitting the reference image stream, the additional image stream and the service map table in real time. | 06-10-2010 |
20100161087 | METHOD AND APPARATUS FOR GENERATION AND PLAYBACK OF OBJECT BASED AUDIO CONTENTS - Disclosed are an apparatus and a method of providing contents. The apparatus of providing the contents may include a receiving unit to receive, from a contents provider, contents and information about a contents providing location, a local group setting unit to search for at least one cell based on the information about the contents providing location and to set the retrieved cell as a content providing location group of the contents, and a transmitting unit to transmit the contents to the set content providing location group. The object based audio contents may be consecutively replayed based on an identical audio preset. | 06-24-2010 |
20100195898 | METHOD AND APPARATUS FOR IMPROVING QUALITY OF DEPTH IMAGE - A method and apparatus for enhancing quality of a depth image are provided. A method for enhancing quality of a depth image includes: receiving a multi-view image including a left image, a right image, and a center image; receiving a current depth image frame and a previous depth image frame of the current depth image frame; setting an intensity difference value corresponding to a specific disparity value of the current depth image frame by using the current depth image frame and the previous depth image frame; setting a disparity value range including the specific disparity value; and setting an intensity difference value corresponding to the disparity value range of the current depth image frame by using the multi-viewpoint image. | 08-05-2010 |
20100215044 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING OF THE OBJECT-BASED AUDIO CONTENTS - The present invention relates to a system for transmitting and receiving audio, particularly, to a method and apparatus for transmitting and receiving of object-based audio contents, which packetizes audio objects having the same characteristic. To achieve the above, the present invention includes filtering a plurality of ESs according to common information, adding a packet header to the respective filtered ESs and generate ES packets, aggregating all the generated ES packets and then adding a multi-object packet header to the aggregated ES packets to generate an object packet, and multiplexing the generated object packet, packetizing the multiplexed object packet according to a transmitting media and transmitting the packetized object packet. | 08-26-2010 |
20100277568 | METHOD AND APPARATUS FOR STEREOSCOPIC DATA PROCESSING BASED ON DIGITAL MULTIMEDIA BROADCASTING - A stereoscopic data processing method and apparatus to provide service of stereoscopic data interoperating with digital multimedia broadcasting (DMB) is provided. The stereoscopic data processing method, including: receiving a transmission stream (TS) including a program map table from an external device; recognizing stereoscopic program information descriptor in the program map table; and recognizing defined bit values in the stereoscopic program information descriptor and processing data. | 11-04-2010 |
20100315486 | STEREOSCOPIC VIDEO SERVICE PROVIDING/RECEIVING METHOD AND APPARATUS IN DIGITAL BROADCASTING SYSTEM - Provided is a stereoscopic video service providing method using a stereoscopic video stream including first and second video streams in a digital broadcasting system. The stereoscopic video service providing method includes: generating information on the first video stream and information on the second video stream; inserting an identifier of the information on the second video stream into the information on the first video stream; and transmitting the first video stream and the information on the first video stream and the second video stream and the information on the second video stream through separate transmission channels, respectively. | 12-16-2010 |
20100315490 | APPARATUS AND METHOD FOR GENERATING DEPTH INFORMATION - An apparatus for generating depth information, includes: a projector configured to project a predetermined pattern to an object to be photographed; a left camera configured to acquire a left image of a structured light image which is generated by projecting the predetermined pattern to the object; a right camera configured to acquire a right image of the structured light image; a depth information generating unit configured to determine correspondence points based on the left image, the right image and the structured light pattern, to generate depth information of the image, to determine the depth information by applying a stereo matching method to the left image and the right image when the structured light pattern cannot be applied to a field of the image, and to generate depth information of entire image based on the acquired depth information. | 12-16-2010 |
20110010608 | FORWARD ERROR CORRECTION ENCODING/DECODING METHOD AND APPARATUS, DIGITAL BROADCASTING RECEPTION APPARTUS, AND DECODING METHOD THEREOF - A forward error correction encoding method includes: separating a first header section from an inputted packet stream; generating a second payload section by encoding a first payload section of the packet stream, from which the first header section is separated, according to a preset code rate; generating a second header section according to the code rate; and combining the first header section, the second header section, and the second payload section. | 01-13-2011 |
20110010739 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING STEREOSCOPIC VIDEO IN DIGITAL BROADCASTING SYSTEM - Provided is a method for transmitting a stereoscopic video in a digital broadcasting system, the stereoscopic video being composed of a left view and a right view. The method includes: generating information indicating that the video is stereoscopic, information about a composition type of the stereoscopic video, and additional information based on the composition type; and transmitting the stereoscopic video and the generated information. The composition type is to compose the stereoscopic video of a single or two encoding streams by using the left view and the right view. In the case of a single stream mode in which the stereoscopic video is composed of the single encoding stream, the additional information includes information about positions of the left and right views. In the case of a dual stream mode in which the stereoscopic video is composed of the two encoding streams, the additional information includes information indicating whether the respective encoding streams are the left view or the right view and information indicating correlation between the respective encoding streams. | 01-13-2011 |
20110050857 | APPARATUS AND METHOD FOR DISPLAYING 3D IMAGE IN 3D IMAGE SYSTEM - Disclosed is an apparatus and a method for displaying 3D images, which do not need to be reversed, so that users can watch the 3D images without modification in a 3D image system. The 3D images display extracts characteristic information regarding a plurality of imaging devices from left and right images taken by the imaging devices, selects an image among the left and right images, determines a reference element in the selected image, determines a selection element corresponding to the reference element in the non-selected image; calculates a disparity value between the left and right images by using the reference element and the selection element, determines whether the left and right images are normal or not by using the disparity value, and corrects the left and right images based on the determination result. | 03-03-2011 |
20110064249 | METHOD FOR GENERATING AND PLAYING OBJECT-BASED AUDIO CONTENTS AND COMPUTER READABLE RECORDING MEDIUM FOR RECORDING DATA HAVING FILE FORMAT STRUCTURE FOR OBJECT-BASED AUDIO SERVICE - Provided are a method of generating and playing an object-based audio content that may effectively store preset information about an object-based audio content, and a computer-readable recording medium for storing data having a file format structure for an object-based audio service. The method of generating the object-based audio content may include: receiving a plurality of audio objects ( | 03-17-2011 |
20110069934 | APPARATUS AND METHOD FOR PROVIDING OBJECT BASED AUDIO FILE, AND APPARATUS AND METHOD FOR PLAYING BACK OBJECT BASED AUDIO FILE - Provided are an apparatus and method for providing an object based audio file, and an apparatus and method for playing back an object based audio file. The object based audio file producing apparatus may include a bitstream generator to generate a bitstream about an object based audio file including a plurality of audio object frames and a file header for an object based audio service; and a bitstream transmitter to transmit the bitstream to the object based audio file playback apparatus. The plurality of audio object frames may include a frame storing a audio source in which all of a plurality of audio frames is mixed and a frame storing each of the audio objects. | 03-24-2011 |
20110141364 | METHOD AND APPARATUS FOR RECEPTION AND TRANSMISSION - Disclosed is a reception apparatus including a basic service reception unit to demodulate and channel-decode a signal received through one broadcasting channel among broadcasting channels for a basic service, and to extract a transport stream, an additional service reception unit to demodulate and channel-decode a signal received through a broadcasting channel for an additional service combined with the basic service, and to extract a transport stream, an integrated demultiplexer to respectively demultiplex the transport stream provided for the basic service and the transport stream provided for the additional service in order to extract at least one transport stream, and a source decoder to respectively decode the demultiplexed transport stream provided for the basic service and the demultiplexed transport stream provided for the additional service in order to broadcast at least one of a basic source and an additional source combined with the basic source. | 06-16-2011 |
20110149031 | STEREOSCOPIC IMAGE, MULTI-VIEW IMAGE, AND DEPTH IMAGE ACQUISITION APPARATUS AND CONTROL METHOD THEREOF - Provided is a camera apparatus, including: a camera unit including at least two cameras to acquire a stereoscopic image; a camera control unit to adjust a view angle of the at least two cameras and an interval between the at least two cameras; a depth information obtainment unit to obtain depth information from the stereoscopic image; and an intermediate image generator to generate an intermediate image based on the stereoscopic image and the depth information. | 06-23-2011 |
20110150321 | METHOD AND APPARATUS FOR EDITING DEPTH IMAGE - Provided is a method of editing a depth image, comprising: receiving a selection on a depth image frame to be edited and a color image corresponding to the depth image frame; receiving a selection on an interest object in the color image; extracting boundary information of the interest object; and correcting a depth value of the depth image frame using the boundary information of the interest object. | 06-23-2011 |
20110175985 | METHOD OF GENERATING CONTENTS INFORMATION AND APPARATUS FOR MANAGING CONTENTS USING THE CONTENTS INFORMATION - The present invention relates to a method of generating contents information for managing contents including stereo-scopic contents being two-dimensional contents and three dimensional contents, and an apparatus for managing contents, the method including the steps of, when there is a scene change of contents, adding a second field including information on each of a plurality of scenes corresponding to a plurality of types, respectively, to the contents information. | 07-21-2011 |
20110234769 | APPARATUS AND METHOD FOR DISPLAYING IMAGES IN IMAGE SYSTEM - An apparatus for displaying images in an image system includes: an encoder configured to encode color and depth images of at least one view received from a plurality of imaging devices and generate a reference image by synthesizing the encoded depth image of a current view and the encoded color and depth images before and after the current view based on a predetermined method; a decoder configured to decode a color image of the current view by using the generated reference image and decode the encoded color and depth images of at least one view; and a splitter configured to divide and split, based on each view, the decoded color and depth images of at least one view. | 09-29-2011 |
20110242093 | APPARATUS AND METHOD FOR PROVIDING IMAGE DATA IN IMAGE SYSTEM - An apparatus for providing image data in an image system includes: a stereoscopic image generation unit configured to receive image data and depth information data and generate stereoscopic image data; a parallax calculation unit configured to analyze parallax information of a 3D image from the stereoscopic image data, divide the analyzed parallax information step by step, and determine parallax step information; a caption and text generation unit configured to generate a caption and a text by applying the parallax step information and generate position information of the generated caption and text; and an image synthesis unit configured to insert the caption and text into the stereoscopic image data based on the position information of the caption and text and provide 3D image data. | 10-06-2011 |
20110261883 | MULTI- VIEW VIDEO CODING/DECODING METHOD AND APPARATUS - Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled. | 10-27-2011 |
20120023161 | SYSTEM AND METHOD FOR PROVIDING MULTIMEDIA SERVICE IN A COMMUNICATION SYSTEM - Disclosed herein are a system and a method for providing multimedia services capable of providing various types of multimedia contents and information sensed at multi-points to users at a high rate and in real time at the time of providing the multimedia contents and sense scene representation and sensory effects for multimedia contents corresponding to multimedia services through the multi-points according to service requests of the multimedia services that users want to receive, encode and transmit the sensed information for scene representation and sensory effects with binary representation according to the sensing, transmit device command data for the sensed scene representation and sensory effects, drive and control user devices according the device command data to provide the scene representation and the sensory effects for the multimedia contents to the users. | 01-26-2012 |
20120093323 | AUDIO SYSTEM AND METHOD OF DOWN MIXING AUDIO SIGNALS USING THE SAME - An audio system that provides an optimized sense of realism and an optimized three-dimensional effect to a user, the audio system including: a horizontal plane speaker set including a center channel speaker that is disposed at a reference point, a left channel speaker and a right channel speaker that are disposed at points in right and left directions of the reference point, and at least one first channel speaker and at least one second channel speaker that are disposed in right and left directions of the reference point, respectively; and a vertical plane speaker set including a left height channel speaker and a right height channel speaker that are respectively disposed in right and left directions of the reference point and in a vertical direction of the reference point, and a center height channel speaker that is disposed in the vertical direction of the reference point. | 04-19-2012 |
20120098928 | STEREOSCOPIC CONTENT SERVICE SYSTEM AND METHOD - The present invention relates to a stereoscopic content service system and method, and more particularly to a stereoscopic content service system and method which defines a Scene Descriptor (SD) including information required for stereoscopic contents, displays the stereoscopic contents based on the information of the defined SD, and thereby may perform a two-dimension (2D)/three-dimension (3D) display conversion through user interaction and display a stereoscopic text based on information about a left and right text and disparity information. | 04-26-2012 |
20120120969 | APPARATUS AND METHOD FOR GENERATING AN MPEG-2 TRANSPORT PACKET HAVING A VARIABLE PACKET LENGTH - Provided is a transport packet generating apparatus that generates a transport packet having a variable length, and the length of the transport packet is indicated by a field included in a header of the transport packet or a synchronization area of the transport packet, the field indicating a length of the transport packet. | 05-17-2012 |
20120127266 | METHOD AND APPARATUS FOR PROVIDING STEREOSCOPIC 3D BROADCASTING SERVICE COMPATIBLE WITH HD BROADCASTING SERVICE - A method and apparatus for providing a broadcasting service are provided. The broadcasting service may be classified based on a broadcasting service type, such as a frame-compatible service, and a service-compatible service. Additionally, a descriptor may be generated based on the broadcasting service type, and a compatibility between a stereoscopic three-dimensional (3D) broadcasting service and a single stream-based broadcasting service may be provided. | 05-24-2012 |
20120133754 | GAZE TRACKING SYSTEM AND METHOD FOR CONTROLLING INTERNET PROTOCOL TV AT A DISTANCE - A remote gaze tracking apparatus and method for controlling an Internet Protocol Television (IPTV) are provided. An entire image including a facial region of a user may be acquired using a visible ray, the facial region may be detected from the acquired entire image, and a face width, a distance between eyes, and a distance between an eye and a screen may be acquired from the detected facial region. Additionally, an enlarged eye image corresponding to a face of the user may be acquired using at least one of the acquired face width, the acquired distance between the eyes, and the acquired distance between the eye and the screen, and an eye gaze of the user may be tracked using the acquired eye image. | 05-31-2012 |
20120163609 | APPARATUS FOR PROCESSING A MULTI-CHANNEL AUDIO SIGNAL AND METHOD THEREOF - A multi-channel audio signal transmitting apparatus of the present invention includes an encoding unit configured to encode a predetermined audio signal and a controller configured to transmit the encoded audio signal to a predetermined device based on an HDAI (high definition audio interface) protocol. | 06-28-2012 |
20120206578 | APPARATUS AND METHOD FOR EYE CONTACT USING COMPOSITION OF FRONT VIEW IMAGE - Provided is an apparatus and method for an eye contact using composition of a front view image, the apparatus including: an image acquiring unit to acquire a multi-camera image; a preprocessing unit to preprocess the acquired multi-camera image; a depth information search unit to search for depth information of the preprocessed multi-camera image; and an image composition unit to compose the front view image using the found depth information. | 08-16-2012 |
20120209600 | INTEGRATED VOICE/AUDIO ENCODING/DECODING DEVICE AND METHOD WHEREBY THE OVERLAP REGION OF A WINDOW IS ADJUSTED BASED ON THE TRANSITION INTERVAL - A Unified Speech and Audio Codec (USAC) for adjusting an overlap area of a window based on a transition is provided. To increase an encoding efficiency, encoding may be performed by overlapping relatively long windows. Additionally, when a transition is generated between frames, an overlap area of a window may be reduced based on the transition, thereby preventing a noise from occurring due to the transition. | 08-16-2012 |
20120257012 | METHOD AND APPARATUS FOR 3-DIMENSIONAL IMAGE DISPLAY - A display method and a display apparatus of a 3D image are provided. The display method includes: receiving an image stream; determining a viewing mode of the image stream; determining whether or not a screen of a display apparatus is adjusted according to the determined viewing mode; and adjusting the screen of the display apparatus in the case in which it is determined in the determining of whether or not the screen of the display apparatus is adjusted that the screen is adjusted, wherein the viewing mode of the image stream includes a 2D image viewing mode and a 3D image viewing mode. | 10-11-2012 |
20120257015 | APPARATUS AND METHOD FOR 3D BROADCASTING SERVICE IN BROADCASTING SYSTEM COMBINED WITH MOBILE BROADCASTING - Provided is an apparatus and a method for providing a three-dimensional (3D) broadcasting service that may provide a two-dimensional (2D) fixed broadcasting service using a fixed broadcasting signal or a 2D mobile broadcasting service using a mobile broadcasting signal when a transmitter transmits each of a left image and a right image constituting a 3D image using the fixed broadcasting signal or the mobile broadcasting signal, and the receiver receives the fixed broadcasting signal and the mobile broadcasting signal, or may provide a 3D broadcasting service by composing an image received using the fixed broadcasting signal and an image received using the mobile broadcasting signal into a 3D image. | 10-11-2012 |
20120263229 | ADAPTIVE IMAGE ENCODING DEVICE AND METHOD - Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters. | 10-18-2012 |
20120275513 | VIDEO ENCODING/DECODING METHOD AND DEVICE - Disclosed are a video encoding/decoding method and device. The video encoding method may comprise the steps of: establishing an adaptive filter corresponding to the current image; comparing the adaptive filter established in this way with at least one existing adaptive filter contained in a filter list; establishing whether to add the adaptive filter established in the way described to the adaptive filter list, based on the results of the comparison; and encoding the current image by using an adaptive filter contained in the filter list. In this way, encoding efficiency can be improved. | 11-01-2012 |
20120277894 | AUDIO AUTHORING APPARATUS AND AUDIO PLAYBACK APPARATUS FOR AN OBJECT-BASED AUDIO SERVICE, AND AUDIO AUTHORING METHOD AND AUDIO PLAYBACK METHOD USING SAME - An audio producing apparatus and an audio playing apparatus for an object-based audio service, and an audio producing method and an audio playing method using the same are provided. The producing apparatus and the audio playing apparatus supplies the object-based audio service, using audio object signals corresponding to a number of audio channels processable by the audio playing apparatus. | 11-01-2012 |
20120291611 | METHOD AND APPARATUS FOR SEPARATING MUSICAL SOUND SOURCE USING TIME AND FREQUENCY CHARACTERISTICS - A method and apparatus for separating and extracting main sound sources from a mixed musical sound signal are provided. A musical sound source separation apparatus may include an prior information signal compressor to compress an prior information signal including a characteristic of a predetermined sound source, a mixed signal divider to divide a mixed signal including a plurality of sound sources into a plurality of segments, a Nonnegative Matrix Partial Co-Factorization (NMPCF) analyzer to acquire common information shared by the plurality of segments, by applying an NMPCF algorithm to the prior information signal, and a target musical instrument signal separator to separate a target musical instrument signal corresponding to the predetermined sound source from the mixed signal, based on the common information. | 11-22-2012 |
20120293504 | SYSTEM AND METHOD FOR TRANSMITTING THREE-DIMENSIONAL IMAGE INFORMATION USING DIFFERENCE INFORMATION - Provided is a three-dimensional (3D) image information transmitting system and method based on difference information. A 3D image information transmitting apparatus in the 3D image information transmitting system may include a difference information extractor to extract difference information by comparing a second composite texture image obtained by generating a composite of a first texture image and depth information with a second original texture image, and an image information transmitting unit to transmit 3D image information including the first texture image, the depth information, and the difference information. | 11-22-2012 |
20130058585 | APPARATUS FOR ENCODING AND DECODING IMAGE BY SKIP ENCODING AND METHOD FOR SAME - The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal. | 03-07-2013 |
20130077631 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING OF THE OBJECT-BASED AUDIO CONTENTS - The present invention relates to a system for transmitting and receiving audio, particularly, to a method and apparatus for transmitting and receiving of object-based audio contents, which packetizes audio objects having the same characteristic. To achieve the above, the present invention includes filtering a plurality of ESs according to common information, adding a packet header to the respective filtered ESs and generate ES packets, aggregating all the generated ES packets and then adding a multi-object packet header to the aggregated ES packets to generate an object packet, and multiplexing the generated object packet, packetizing the multiplexed object packet according to a transmitting media and transmitting the packetized object packet. | 03-28-2013 |
20130083165 | APPARATUS AND METHOD FOR EXTRACTING TEXTURE IMAGE AND DEPTH IMAGE - Provided are an apparatus and method for extracting a texture image and a depth image. The apparatus of the present invention may project a pattern image on a target object, may capture a scene image on which the target image is reflected from the target object, and may simultaneously extract the texture image and the depth image using the scene image. | 04-04-2013 |
20130108184 | METHOD AND APPARATUS FOR ENCODING IMAGES USING TEMPLATE MATCHING AND METHOD AND APPARATUS FOR DECODING IMAGES | 05-02-2013 |
20130128057 | GEOMETRIC CORRECTION APPARATUS AND METHOD BASED ON RECURSIVE BEZIER PATCH SUB-DIVISION CROSS-REFERENCE TO RELATED APPLICATION - Provided is a geometric correction apparatus and method based on a recursive Bezier patch sub-division. A geometric correction method may include: receiving, from a camera, a first image that is obtained by photographing a black screen that is projected by a projector onto a projection surface; receiving, from the camera, a second image that is obtained by photographing a predetermined pattern that is projected by the projector onto the projection screen; generating a third image by subtracting the first image from the second image; and performing geometric correction with respect to the predetermined pattern to correct a distortion between the predetermined pattern and the third image. | 05-23-2013 |
20130136172 | METHOD AND APPARATUS FOR ENCODING VIDEO, AND DECODING METHOD AND APPARATUS - The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units. | 05-30-2013 |
20130177078 | APPARATUS AND METHOD FOR ENCODING/DECODING VIDEO USING ADAPTIVE PREDICTION BLOCK FILTERING - Provided are a method and apparatus for encoding/decoding video. The method and apparatus of the present invention involve generating a first prediction block for a block to be decoded, calculating a filter coefficient on the basis of the block adjacent to the first prediction block, and performing filtering on the first prediction block using the filter coefficient so as to generate a second prediction block if information relating to the performance of filtering indicates that filtering should be performed. According to the present invention, accuracy in video prediction and encoding performance are improved. | 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 |
20130182779 | METHOD AND APPARATUS FOR VIDEO-ENCODING/DECODING USING FILTER INFORMATION PREDICTION - Provided is a scalable video-decoding method based on multiple layers. The scalable video-decoding method according to the present invention comprises: a step of predicting first filter information of a video to be filtered using the information contained in an object layer and/or information contained in another layer, and generating second filter information in accordance with the prediction; and a step of filtering the video to be filtered using the second filter information. According to the present invention, the amount of information being transmitted is reduced, and video compression performance is improved. | 07-18-2013 |
20130188731 | METHOD FOR ENCODING/DECODING BLOCK INFORMATION USING QUAD TREE, AND DEVICE FOR USING SAME - Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit. | 07-25-2013 |
20130188740 | METHOD AND APPARATUS FOR ENTROPY ENCODING/DECODING - Provided is an entropy decoding method. The entropy decoding method according to the present invention comprises the steps of: drawing context information about a symbol to be decoded using at least either context information about corresponding layer or context information about other layers; and performing entropy decoding on the symbol using the drawn context information. According to the present invention, image compression efficiency can be enhanced. | 07-25-2013 |
20130188884 | METHOD FOR ENCODING AND DECODING IMAGES AND APPARATUS FOR ENCODING AND DECODING USING SAME - The present invention relates to image encoding and image decoding. A method for encoding images according to the present invention comprises the steps of: acquiring division information from peripheral blocks of an encoding target block with respect to the peripheral blocks; predicting the division of the encoding target block on the basis of the acquired division information; encoding information on the difference between the practical division information of the encoding target information and the predictive division information predicted in the predicting process; and transmitting the encoded information. The present invention can encode/decode the division information of the encoding/decoding target blocks using the information about the peripheral blocks. | 07-25-2013 |
20130194292 | APPARATUS AND METHOD FOR CORRECTING COLOR OF IMAGE PROJECTION DEVICE - An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure. | 08-01-2013 |
20130223528 | METHOD AND APPARATUS FOR PARALLEL ENTROPY ENCODING/DECODING - The present invention relates to an entropy encoding method comprising the following steps: updating probability information using the update information derived based on a bit stream received from an encoder; deriving a bin corresponding to the current codeword based on the updated probability information; and performing the inverse binarization of the derived bin to acquire a syntax element. According to the present invention, video-encoding/decoding efficiency may be improved. | 08-29-2013 |
20130235159 | METHOD AND APPARATUS FOR DETERMINING A VIDEO COMPRESSION STANDARD IN A 3DTV SERVICE - A method and apparatus for determining an image compression format of a 3-dimensional television (3DTV). The method may include encoding a high-quality image and transmitting the encoded high-quality image through a first channel, determining an image compression format in which a resolution of the encoded low-quality image is higher than or equal to a reference value in comparison to the high-quality image, and encoding the low-quality image according to the determined image compression format and transmitting, the encoded low-quality image through a second channel. | 09-12-2013 |
20130242055 | APPARATUS AND METHOD FOR EXTRACTING DEPTH IMAGE AND TEXTURE IMAGE - Disclosed are a method and an apparatus for acquiring a texture image and a depth image in a scheme for acquiring a depth image based on a pattern image. An apparatus for acquiring a texture image and a depth image may include a pattern image irradiating unit to irradiate, onto a target object, a first pattern image and a second pattern image having a color complementary to a color of the first pattern image, an image taking unit to take a first screen image and a second screen image formed by irradiating the first pattern image and the second pattern image onto the target object, respectively, and an image processing unit to simultaneously extract a texture image and a depth image of the target object in the taken first screen image and the taken second screen image. | 09-19-2013 |
20130250045 | APPARATUS AND METHOD FOR GENERATING AND CONSUMING THREE-DIMENSIONAL (3D) DATA FORMAT TO GENERATE REALISTIC PANORAMIC IMAGE - An apparatus and method for generating and consuming a three-dimensional (3D) data format to generate a realistic panoramic image are provided. The apparatus may include an image preprocessing unit to search for a matching point between images captured by a plurality of cameras, and to extract, as image information, at least one of a depth value, a texture value and object division information from each of the captured images, an image information structuring unit to structure 3D data to use the extracted image information to generate a realistic image, a 3D data format storage unit to store format information of the to structured 3D data in a database (DB), realistic image generating unit to generate a realistic panoramic image using the stored format information of the 3D data, and a realistic image rendering unit to perform rendering on the generated realistic panoramic image. | 09-26-2013 |
20130250055 | METHOD OF CONTROLLING A 3D VIDEO CODING RATE AND APPARATUS USING THE SAME - A 3D video encoding rate controlling method and an apparatus using the method are disclosed. An image encoding method includes encoding first and second images at a first encoding ratio, with an encoding rate of the first image different from an encoding rate of the second image and after encoding the first and second images at the first encoding ratio, encoding the first and second images at a second encoding ratio. Accordingly, it may be possible to provide a viewer with 3D images while minimizing visual fatigue in consideration of a human visual characteristics. | 09-26-2013 |
20130266063 | VIDEO ENCODING METHOD AND APPARATUS FOR FAST INTRA PREDICTION - An image encoding method in an image encoding apparatus is provided. An image encoding apparatus calculates an SATD (Sum of Absolute Transform Difference)-based encoding expense of each of a plurality of intra prediction modes for a current prediction unit. The image encoding apparatus determines at least one or more first candidate encoding modes for the current prediction unit based on the SATD-based encoding expense. The image encoding apparatus determines a final encoding mode among the first candidate encoding modes. | 10-10-2013 |
20130290815 | FORWARD ERROR CORRECTION ENCODING/DECODING METHOD AND APPARATUS, DIGITAL BROADCASTING RECEPTION APPARATUS, AND DECODING METHOD THEREOF - A forward error correction encoding method includes: separating a first header section from an inputted packet stream; generating a second payload section by encoding a first payload section of the packet stream, from which the first header section is separated, according to a preset code rate; generating a second header section according to the code rate; and combining the first header section, the second header section, and the second payload section. | 10-31-2013 |
20130294607 | BROADCAST TRANSMITTING APPARATUS AND BROADCAST TRANSMITTING METHOD FOR PROVIDING AN OBJECT-BASED AUDIO, AND BROADCAST PLAYBACK APPARATUS AND BROADCAST PLAYBACK METHOD - A broadcast transmitting apparatus and method, and a broadcast playback apparatus and method for providing an object-based audio by encoding and decoding a multichannel audio signal are provided. The broadcast transmitting apparatus may generate audio identification information used to determine whether the multichannel audio signal is an object-based audio signal. When the multichannel audio signal is determined to be the object-based audio signal, based on the audio identification information, the broadcast playback apparatus may control and output the multichannel audio signal for each channel. | 11-07-2013 |
20130343452 | APPARATUS FOR ENCODING AND DECODING IMAGE USING ADAPTIVE DCT COEFFICIENT SCANNING BASED ON PIXEL SIMILARITY AND METHOD THEREFOR - The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients. | 12-26-2013 |
20140010283 | ADAPTIVE IMAGE ENCODING DEVICE AND METHOD - Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters. | 01-09-2014 |
20140029668 | APPARATUS FOR ENCODING AND DECODING IMAGE BY SKIP ENCODING AND METHOD FOR SAME - The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal. | 01-30-2014 |
20140037000 | APPARATUS FOR ENCODING AND DECODING IMAGE USING ADAPTIVE DCT COEFFICIENT SCANNING BASED ON PIXEL SIMILARITY AND METHOD THEREFOR - The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients. | 02-06-2014 |
20140037001 | METHOD AND DEVICE FOR DETERMINING REFERENCE UNIT - An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved. | 02-06-2014 |
20140044167 | VIDEO ENCODING APPARATUS AND METHOD USING RATE DISTORTION OPTIMIZATION - An apparatus for video encoding includes an image prediction unit configured to generate a prediction image about an input image; and a differential signal generation unit configured to generate a differential signal by subtracting the prediction image from the input image. Further, the apparatus includes a restoration image generation unit configured to generate a first restoration image about the input image using the prediction image; and an in-loop filter unit configured to produce a second restoration image that in-loop filtering has been performed, and after performing rate distortion optimization (RDO) by producing bit amount information necessary for restoring the second restoration image, provide result information of the RDO with the image prediction unit. | 02-13-2014 |
20140047309 | APPARATUS AND METHOD FOR SYNCHRONIZING CONTENT WITH DATA - Provided is an apparatus and method for synchronizing content with data that may extract content feature information of the content, and control synchronization by comparing the content feature information and data feature information described in the data. | 02-13-2014 |
20140133739 | METHOD AND APPARATUS FOR CORRECTING ERRORS IN MULTIPLE STREAM-BASED 3D IMAGES - The present invention relates to correcting errors of multiple stream-based 3D images. The present invention comprises a 3D image synchronizing unit which synchronizes a first image and a second image consisting the 3D image; a 3D image correcting unit which detects an error block in the first image, searches a corresponding block in the second image, and corrects the error block on the basis of the block information of said corresponding block; and a compositing unit which composites the corrected first image and the second image to generate a 3D stereoscopic image. According to the present invention, bit errors occurring when transmitting multiple stream of 3D image can be corrected, providing better quality of 3D images. Also, error correction can be easily performed by using the method of the present invention without complicated calculations. | 05-15-2014 |
20140160240 | APPARATUS AND METHOD FOR OFFERING BOUNDARY INFORMATION, AND APPARATUS AND METHOD FOR RECEIVING VIDEO - A boundary information providing apparatus may include a boundary information generation unit to generate boundary information of a video, the boundary information through which a switching point between a 2D video and a 3D video is recognized, based on a switching mode between the 2D video and the 3D video, and a stream transmission unit to transmit a stream including the boundary information to a video receiving apparatus. | 06-12-2014 |
20140192146 | APPARATUS AND METHOD FOR DISPLAYING HOLOGRAM IMAGE - Provided is an apparatus and method for displaying a hologram image that may display a hologram image created by tracking a position of a pupil of a user using an acquired user image, tracking a position of a light source of a reflection hologram image that is reflected from appearance of the user, and by correcting a position of a light source of a display hologram image based on the position of the pupil of the user. | 07-10-2014 |
20140205013 | INTER-PREDICTION METHOD AND APPARATUS - A motion estimation method of the present invention includes determining one or more candidate search points for a current block, selecting an initial search point from the one or more candidate search points, and deriving the motion vector of the current block by performing motion estimation within a search range set based on the initial search point. | 07-24-2014 |
20140245371 | DEVICE AND METHOD FOR PROVIDING CONTENT BY ACCESSING CONTENT STREAM IN HYBRID 3D TV, AND DEVICE AND METHOD FOR REPRODUCING CONTENT - A content providing apparatus and method, and a content reproduction apparatus and method for accessing a content stream in a hybrid three-dimensional television (3DTV) are disclosed. The content providing apparatus may include a content stream generation unit to generate a first content stream corresponding to a reference image and a second content stream corresponding to a supplementary image, a descriptor generation unit to generate a descriptor associated with the first content stream and the second content stream, and a data transmission unit to transmit the first content stream, the second content stream, and the descriptor to a content reproduction apparatus. | 08-28-2014 |
20140286415 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR SAME - According to the present invention, a video decoding method comprises: a step of decoding a first bitstream corresponding to a base layer image based on first decoding information corresponding to the image that belongs to the view which is different from the view to which the base layer image belongs; and a step of decoding a second bitstream corresponding to an enhancement layer image based on second decoding information corresponding to the base layer image and third decoding information corresponding to the image that belongs to the view which is different from the view to which the enhancement layer image belongs. | 09-25-2014 |
20140286434 | IMAGE-ENCODING METHOD AND IMAGE-DECODING METHOD - The present invention relates to an image-encoding method, to an image-decoding method, and to an apparatus using same. The image-encoding method according to the present invention comprises the following steps: determining the location of a corresponding sample in a reference layer; restoring a sample of a reference unit in the reference layer, specified by the corresponding sample, so as to generate a reference sample signal; and encoding a differential signal between the sample signal of the current unit of an enhancement layer and the reference sample signal. | 09-25-2014 |
20140300941 | METHOD AND APPARATUS FOR GENERATING HOLOGRAM BASED ON MULTI-VIEW IMAGE - Disclosed are a method and apparatus for generating a hologram based on a multi-view image. The method of generating a hologram image may include receiving a multi-view image and calculating depth information about an image at each view of the multi-view image, calculating an integrated 3-D space datum based on the multi-view image and the pieces of depth information, and generating hologram information from the integrated 3-D space datum. Accordingly, a natural 3-D image can be played because a 3-D image corresponding to an observer view is reproduced without a process of generating in-between view images and pieces of corresponding depth information when the observer moves. | 10-09-2014 |
20140307049 | APPARATUS AND METHOD FOR PROVIDING IMAGE, AND APPARATUS AND METHOD FOR PLAYING IMAGE - Provided is a video providing method and a video playing method for a three-dimensional (3D) video, and an apparatus for performing the methods. The video providing method may transmit a reconstruction mode for reconstructing a low-resolution additional video having lower resolution than a high-resolution reference video. | 10-16-2014 |
20140310010 | APPARATUS FOR ENCODING AND APPARATUS FOR DECODING SUPPORTING SCALABLE MULTICHANNEL AUDIO SIGNAL, AND METHOD FOR APPARATUSES PERFORMING SAME - An encoding apparatus and a decoding apparatus supporting a scalable multichannel audio signal, and methods performed by the apparatuses art provided. When compressing and decompressing a multichannel audio signal to compress and reproduce high quality 3-dimensional (3D) audio, the apparatuses and the methods in integrated form of (1) a sound quality scalability function for providing various qualities of audio adaptively to a transmission environment, terminal performance, and a listening environment (2) a channel scalability function for providing multichannel signals of various formats adaptively to the transmission environment, the terminal performance, and a reproduction environment of a terminal, such as speaker arrangement, and (3) an object scalability function for independently controlling a particular audio object to maximize a 3D sound field effect. | 10-16-2014 |
20140313289 | APPARATUS AND METHOD FOR PROVIDING CONTENT FOR SYNCHRONIZING LEFT/RIGHT STREAMS IN FIXED/MOBILE CONVERGENCE 3DTV, AND APPARATUS AND METHOD FOR PLAYING CONTENT - An apparatus and a method for synchronizing left and right streams in a stationary/mobile hybrid 3DTV are disclosed. The apparatus according to an exemplary embodiment may synchronize content streams corresponding to left and right images using a timestamp pairing mode, a timestamp offset mode, and a network time protocol (NTP) synchronization mode. | 10-23-2014 |
20140314250 | POSITION ESTIMATION SYSTEM USING AN AUDIO-EMBEDDED TIME-SYNCHRONIZATION SIGNAL AND POSITION ESTIMATION METHOD USING THE SYSTEM - Disclosed is a method of estimating a position by a position estimation system. The method includes generating a time-synchronization signal for position determination using a genetic algorithm, embedding the generated time-synchronization signal in an audio signal, and replaying the audio signal embedded with the time-synchronization signal through a speaker, receiving the audio signal embedded with the time-synchronization signal in a microphone, calculating a time delay value of the time-synchronization signal embedded in the received audio signal, and estimating a position of the microphone based on the calculated time delay value. | 10-23-2014 |
20140320597 | 3D BROADCAST SERVICE PROVIDING METHOD AND APPARATUS, AND 3D BROADCAST SERVICE REPRODUCTION METHOD AND APPARATUS FOR USING IMAGE OF ASYMMETRIC ASPECT RATIO - Disclosed are a method and apparatus for providing a three-dimensional (3D) broadcast service using images with asymmetric aspect ratios and a method and apparatus for reproducing a 3D broadcast service. The method of providing the 3D broadcast service includes adjusting a second viewpoint image to be composed with a first viewpoint image into a 3D form with respect to the first viewpoint image and the second viewpoint image for 3D broadcasting, encoding the first viewpoint image and the adjusted second viewpoint image, and generating a broadcast stream of the first viewpoint image and a broadcast stream of the second viewpoint image by multiplexing the first viewpoint image and the second viewpoint image. | 10-30-2014 |
20140333836 | APPARATUS AND METHOD FOR ADDING SYNCHRONIZATION INFORMATION TO AN AUXILIARY DATA SPACE IN A VIDEO SIGNAL AND SYNCHRONIZING A VIDEO - A video synchronization apparatus and method by adding sync data to an ancillary data space of a video signal are provided. A sync data adding apparatus may include a sync data generator to generate sync data; and a sync data adder to add the sync data to an ancillary data space of a video signal. | 11-13-2014 |
20140334543 | INTRA PREDICTION MODE ENCODING/DECODING METHOD AND APPARATUS - Disclosed are an intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device. The intra prediction mode decoding method comprises the steps of: deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit; and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs. | 11-13-2014 |
20140334551 | METHOD AND DEVICE FOR ENCODING AND DECODING IMAGE - A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a final correction value that is calculated by performing an arithmetic right shift by a binary digit 1 for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. Thus, the operational complexity during image encoding/decoding can be reduced. | 11-13-2014 |
20140340480 | APPARATUS AND METHOD FOR MANAGING DELAY IN RECEIVING THREE-DIMENSIONAL (3D) IMAGE - An apparatus for managing a delay in receiving a three-dimensional (3D) image may include an image receiver to receive a left image and a right image for 3D image synthesis, and a substitution content output unit to output substitution content during a waiting time caused by a difference between points in time at which the left image and the right image are received. | 11-20-2014 |
20140341284 | METHOD AND DEVICE FOR SHARING A CANDIDATE LIST - The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks. | 11-20-2014 |
20140355688 | METHOD AND APPARATUS FOR IMAGE CODING/DECODING - A method for decoding an image according to the present invention comprises the steps of: decoding a residual block by quantizing and inverse transforming an entropy-decoded residual block; generating a prediction block via motion compensation; and decoding an image by adding the decoded residual block to the prediction block, wherein on the basis of the maximum number of motion vector candidates of the motion vector candidate list related to the prediction block, a motion vector candidate list is adjusted by adding a particular motion vector candidate or by discarding a portion from among the motion vector candidates, and in the prediction block generation step, a prediction motion vector of the prediction block is determined on the basis of the adjusted motion vector candidate list. Accordingly, the complexity of arithmetic operations is reduced during encoding/decoding of an image. | 12-04-2014 |
20140362906 | METHOD AND DEVICE FOR ENCODING AND DECODING IMAGE - A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a fmal correction value that is calculated by performing an arithmetic right shift by a binary digit I for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. The operational complexity during image encoding/decoding can be reduced. | 12-11-2014 |
20140375889 | METHOD, APPARATUS, AND SYSTEM FOR SWITCHING TRANSPORT STREAM - Disclosed herein is a method of switching a transport stream. The method comprises receiving a plurality of different input streams, receiving a switching command for a first input stream that belongs to the plurality of input streams and that is now output, searching for an out-point of the first input stream and an in-point of a second input stream that is newly output, in response to the switching command, inserting a virtual P picture stream between the out-point and the in-point, and performing switching from the first input stream into the second input stream based on the out-point and the in-point. | 12-25-2014 |
20150016548 | VIDEO DECODING METHOD AND APPARATUS USING THE SAME - A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency. | 01-15-2015 |
20150023413 | METHOD AND DEVICE FOR CONTROLLING VIDEO BIT RATE - A method of controlling a video bit rate includes splitting the current frame into a plurality of first sub frames, deriving a sub frame goal bit rate for each of the plurality of first sub frames, and deriving a QP value for each of the plurality of first sub frames on the basis of the derived sub frame goal bit rate. According to the method, video coding efficiency may be enhanced. | 01-22-2015 |
20150025894 | METHOD FOR ENCODING AND DECODING OF MULTI CHANNEL AUDIO SIGNAL, ENCODER AND DECODER - Provided are a method of encoding and decoding a multichannel audio signal, and an encoder and a decoder to perform the method. The present invention may perform encoding into consideration of a size of bit to be allocated based on a feature of audio signal for each channel with respect to an audio signal having a plurality of channels, thereby enhancing an encoding efficiency of the multichannel audio signal. | 01-22-2015 |
20150030160 | BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO - Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal. | 01-29-2015 |
20150036743 | INTERLAYER PREDICTION METHOD AND DEVICE FOR IMAGE SIGNAL - The present invention relates to a multilayer structure-based image coding and decoding method. The present invention provides a method of using an intra prediction mode of a corresponding block of a lower layer in intra-frame predictive coding of a target block of an upper layer to increase coding efficiency and decrease complexity by removing redundancy from inter-layer intra prediction mode information. | 02-05-2015 |
20150062298 | IMAGE QUALITY INCREASING APPARATUS AND METHOD - An image quality increasing apparatus for a binocular three-dimensional television (3DTV) is disclosed. The image quality increasing apparatus may include an error detection unit to detect whether a reference image includes an error, a reference information correction unit to correct reference information for increasing an image quality of an additional image based on a detection result, an image quality increasing unit to increase the image quality of the additional image corresponding to the reference information, and a three-dimensional (3D) image synthesis unit to synthesize a 3D image using the quality increased additional image and the reference image. | 03-05-2015 |
20150063438 | ENCODING METHOD AND DECODING METHOD, AND DEVICE USING SAME - The present invention relates to an encoding method and decoding method, and a device using the same. The encoding method according to the present invention comprises the steps of: specifying an intra prediction mode for a current block; and scanning a residual signal by intra prediction of the current block, wherein the step of scanning the residual signal can determine a scanning type for a luminance signal and a chroma signal of the current block according to an intra prediction mode for a luminance sample of the current block. | 03-05-2015 |
20150063453 | IMAGE INFORMATION DECODING METHOD, IMAGE DECODING METHOD, AND DEVICE USING SAME - The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding. | 03-05-2015 |
20150063574 | APPARATUS AND METHOD FOR SEPARATING MULTI-CHANNEL AUDIO SIGNAL - An apparatus and method for separating a multi-channel audio signal that separates a multi-channel audio signal into a plurality of sound source objects is disclosed, the apparatus including a multi-channel stereo transformer to transform a multi-channel audio signal into a plurality of stereo signals, and a stereo sound source separator to separate the plurality of stereo signals into a plurality of sound source objects. | 03-05-2015 |
20150066518 | AUDIO ENCODING APPARATUS AND METHOD, AUDIO DECODING APPARATUS AND METHOD, AND AUDIO REPRODUCING APPARATUS - An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound. | 03-05-2015 |
20150078442 | METHOD AND DEVICE FOR ENCODING/DECODING IMAGE - A method and a device for encoding/decoding an image are disclosed. The method for decoding an image comprises the steps of: decoding information on a quantization matrix; and restoring the quantization matrix on the basis of the information on the quantization matrix, wherein the information on the quantization matrix includes information indicating a DC value of the quantization matrix and/or information indicating differential values of quantization matrix coefficients. | 03-19-2015 |
20150078446 | METHOD AND APPARATUS FOR INTER-LAYER INTRA PREDICTION - The present invention relates to a method and an apparatus for inter-layer intra prediction. The method for inter-layer intra prediction comprises: a step of determining a reference layer for inter-layer intra prediction; a step of generating intra prediction information from the reference layer; and a step of performing inter-layer prediction on the current block based on the intra prediction information. In cases where the same location block of the reference block corresponding to the prediction object frame on a temporal axis is inter predicted in the reference layer, intra prediction information is generated based on the intra predicted same location block from among the previous and post frames of the reference frame. | 03-19-2015 |
20150078452 | IMAGE ENCODING/DECODING APPARATUS AND METHOD - Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the | 03-19-2015 |
20150078453 | IMAGE ENCODING/DECODING APPARATUS AND METHOD - Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the | 03-19-2015 |