Patent application number | Description | Published |
20090003441 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 01-01-2009 |
20090003448 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 01-01-2009 |
20090003449 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 01-01-2009 |
20090003716 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 01-01-2009 |
20090003717 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 01-01-2009 |
20090034856 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING PROGRAM, IMAGE DECODING PROGRAM, COMPUTER READABLE RECORDING MEDIUM HAVING IMAGE ENCODING PROGRAM RECORDED THEREIN - An image encoder including: a predicted-image generating unit that generates a predicted image in accordance with a plurality of prediction modes indicating predicted-image generating methods; a prediction-mode judging unit that evaluates prediction efficiency of a predicted image outputted from the predicted-image generating unit to judge a predetermined prediction mode; and an encoding unit that subjects an output of the prediction-mode judging unit to variable-length encoding. The prediction-mode judging unit judges, on the basis of a predetermined control signal, which one of a common prediction mode and a separate prediction mode is used for respective color components forming the input image signal, and multiplexes information on the control signal on a bit stream, multiplexes, when the common prediction mode is used, common prediction mode information on the bit stream, and multiplexes, when the common prediction mode is not used, prediction mode information for each of the color components on the bit stream. | 02-05-2009 |
20090046781 | MOVING IMAGE CODING APPARATUS AND MOVING IMAGE DECODING APPARATUS - A macro block size determining unit | 02-19-2009 |
20090080534 | IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE ENCODED BITSTREAM AND RECORDING MEDIUM - The present invention makes it possible to include, when encoding processing is applied to three color components using a 4:0:0 format, data for one picture in one access unit and makes it possible to set the same time information or the same set encoding modes among the respective color components. In an image encoding system for applying compression processing to an input image signal including a plurality of color components, encoded data obtained by independently subjecting an input image signal of each of the color components to encoding processing and a parameter indicating which color component the encoded data corresponds to are multiplexed with a bit stream. In an image decoding system for inputting a bit stream in which an image signal including a plurality of color components is compressed to perform decoding processing, decoding processing of the encoded data of each of the color components is performed using a parameter indicating which color component the encoded data corresponds to. | 03-26-2009 |
20090097571 | MOTION PICTURE ENCODING APPARATUS AND MOTION PICTURE DECODING APPARATUS - A motion picture encoding apparatus for encoding a motion picture signal includes a plurality of transform units for different transform schemes, and a transform scheme control unit for selecting, from the plurality of the transform units, the transform unit for the transform scheme adapted to the motion picture signal. | 04-16-2009 |
20090110067 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 04-30-2009 |
20090123066 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING PROGRAM, IMAGE DECODING PROGRAM, COMPUTER READABLE RECORDING MEDIUM HAVING IMAGE ENCODING PROGRAM RECORDED THEREIN, - An image encoder including: a predicted-image generating unit that generates a predicted image in accordance with a plurality of prediction modes indicating predicted-image generating methods; a prediction-mode judging unit that evaluates prediction efficiency of a predicted image outputted from the predicted-image generating unit to judge a predetermined prediction mode; and an encoding unit that subjects an output of the prediction-mode judging unit to variable-length encoding. The prediction-mode judging unit judges, on the basis of a predetermined control signal, which one of a common prediction mode and a separate prediction mode is used for respective color components forming the input image signal, and multiplexes information on the control signal on a bit stream, multiplexes, when the common prediction mode is used, common prediction mode information on the bit stream, and multiplexes, when the common prediction mode is not used, prediction mode information for each of the color components on the bit stream. | 05-14-2009 |
20100005070 | METADATA EDITING APPARATUS, METADATA REPRODUCTION APPARATUS, METADATA DELIVERY APPARATUS, METADATA SEARCH APPARATUS, METADATA RE-GENERATION CONDITION SETTING APPARATUS, AND METADATA DELIVERY METHOD AND HINT INFORMATION DESCRIPTION METHOD - Multimedia content containing moving pictures and audio is divided into multiple scenes and metadata is generated for each of the scenes obtained as a result of the division. It is possible to generate metadata containing scene structure information metadata that describes the hierarchical structure of the content in addition to scene section information and titles. Also, a name or an identifier of each descriptor contained in the metadata is described as hint information for manipulation of metadata composed of at least one descriptor describing semantic content, a structure, and characteristics of content. | 01-07-2010 |
20100232691 | IMAGE CODING DEVICE, IMAGE DECODING DEVICE, IMAGE CODING METHOD, AND IMAGE DECODING METHOD - Provided is a method and the like for efficiently compressing information by removing signal correlations more effectively according to local characteristics of a 4:4:4 format video signal to be coded. An image coding device includes: a signal analysis unit for obtaining, for a signal of each of the plurality of color components belonging to the first region, an average in a unit of a second region obtained by dividing the first region, and obtaining an average separated signal corresponding to the second region; an average signal coding unit for applying, independently for the each of the plurality of color components, prediction coding to an average signal formed of the average obtained in the unit of the second region obtained by dividing the first region; and an average separated signal coding unit for transforming the average separated signals of the plurality of color components, which are obtained in the unit of the second region obtained by dividing the first region, by switching among a plurality of inter-color-component transform methods provided, and coding the transformed average separated signals independently of the average signal coding unit, in which the average separated signal coding unit outputs information indicating selected inter-color-component transform methods to the bit stream as a part of coded data. | 09-16-2010 |
20110211636 | IMAGE ENCODER AND IMAGE DECODER - An image encoder includes a preprocessing unit | 09-01-2011 |
20110216830 | MOVING IMAGE ENCODER AND MOVING IMAGE DECODER - A moving image encoder has an image separating unit ( | 09-08-2011 |
20120087595 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, AND IMAGE DECODING METHOD - A loop filter | 04-12-2012 |
20120093427 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, AND IMAGE DECODING METHOD - A quantizing matrix selecting part 3 for calculating the average and variance of brightness values in a prediction image created by a motion-compensated prediction unit | 04-19-2012 |
20130028326 | MOVING IMAGE ENCODING DEVICE AND MOVING IMAGE DECODING DEVICE - An encoding controlling unit | 01-31-2013 |
20130114700 | MOVING IMAGE ENCODING DEVICE, MOVING IMAGE DECODING DEVICE, MOVING IMAGE CODING METHOD, AND MOVING IMAGE DECODING METHOD - When generating a prediction image of a color difference signal, an intra prediction unit | 05-09-2013 |
20130279578 | MOVING IMAGE CODING APPARATUS AND MOVING IMAGE DECODING APPARATUS - An apparatus to decode an encoded bit stream obtained by dividing the moving image into a plurality of rectangular regions includes a rectangular region size determination unit for determining a variable size of the regions in a sequence (a set of continuous frames) based on region size information multiplexed in the encoded bit stream. The apparatus includes a decoding unit for decoding coding mode information multiplexed in the encoded bit stream for each of the regions, and a decoding unit for decoding pixel values in each of the regions based on the coding mode information. The coding mode information includes (1) prediction type information selected from information indicating either inter or intra prediction coding, and (2) intra prediction block size information indicating a size of a unit region for the intra prediction coding indicated by the prediction type information. | 10-24-2013 |
20140247875 | VIDEO DECODING DEVICE AND VIDEO DECODING METHOD - A parallel processing starting unit | 09-04-2014 |
20140247876 | VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO DECODING METHOD - A tile partitioning unit | 09-04-2014 |
20150023420 | IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, IMAGE DECODING METHOD, AND IMAGE ENCODING METHOD - A loop filter unit | 01-22-2015 |
20150043630 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, AND IMAGE DECODING METHOD - An image decoding device and an image decoding method are disclosed. The decoding device includes: a variable length decoder to variable-length-decode an inputted encoded bit stream to obtain a parameter for prediction signal generation, a compressed difference image, and filters; and a filtering processor to carry out a filtering process on a decoded image acquired by adding a prediction image and a difference image, wherein the prediction image is generated by using the parameter for prediction signal generation, and the difference image is acquired by decoding the compressed difference image, wherein the variable length decoder variable-length-decodes class identification information for a block in the decoded image, and wherein the filtering processor refers to the class identification information for the block to determine a class for the block, and carries out a filtering process on the block based on the determined class and the filters. | 02-12-2015 |