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公开(公告)号：EP3697092A1
公开(公告)日：2020-08-19
申请号：EP20168284.6
申请日：2014-03-17
IPC分类号： H04N19/463 , H04N19/593 , H04N19/186
摘要： In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.
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公开(公告)号：EP3697090A1
公开(公告)日：2020-08-19
申请号：EP20168272.1
申请日：2014-03-17
IPC分类号： H04N19/463 , H04N19/593 , H04N19/186
摘要： In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.
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公开(公告)号：EP4221209A1
公开(公告)日：2023-08-02
申请号：EP23173933.5
申请日：2012-12-13
IPC分类号： H04N19/14 , H04N19/126 , H04N19/136 , H04N19/176 , H04N19/196 , H04N19/96 , H04N19/124 , H04N19/184 , H04N19/463 , H04N19/50
摘要： Provided is a video coding device with which each picture of a video is partitioned into a first block at a prescribed size which is further partitioned into one or a plurality of second blocks, and the video coded in block units. A quantization parameter computation unit (110) computes a second block quantization parameter. A predict quantization parameter derivation unit (114) derives a second block predict quantization parameter, using a quantization parameter of a third block which is adjacent to the left of the second block and a fourth block which is adjacent above the second block. A differential quantization parameter generating unit (111) generates a second block differential quantization parameter from the difference of the second block quantization parameter and the predict quantization parameter. A first coding bit string generating unit (112) codes the second block differential quantization parameter.
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公开(公告)号：EP3879833A1
公开(公告)日：2021-09-15
申请号：EP21153600.8
申请日：2012-05-30
IPC分类号： H04N19/52 , H04N19/513
摘要： A motion vector predictor candidate generation unit 120 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 120 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.
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公开(公告)号：EP3879831A1
公开(公告)日：2021-09-15
申请号：EP21151640.6
申请日：2012-05-30
IPC分类号： H04N19/52 , H04N19/513
摘要： A motion vector predictor candidate generation unit 120 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 120 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.
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公开(公告)号：EP3879834A1
公开(公告)日：2021-09-15
申请号：EP21153604.0
申请日：2012-05-30
IPC分类号： H04N19/52 , H04N19/513
摘要： A motion vector predictor candidate generation unit 120 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 120 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.
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公开(公告)号：EP3606074A1
公开(公告)日：2020-02-05
申请号：EP19198669.4
申请日：2014-03-17
IPC分类号： H04N19/463 , H04N19/593 , H04N19/186
摘要： In a picture decoding device for decoding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction according to an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a second intra-color-difference prediction mode is obtained by converting the mode number of a first intra-color-difference angle prediction mode used when the aspect ratios are equal to each other, the conversion being done by scaling the prediction angle.
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公开(公告)号：EP3879832A1
公开(公告)日：2021-09-15
申请号：EP21153596.8
申请日：2012-05-30
IPC分类号： H04N19/52 , H04N19/513
摘要： A motion vector predictor candidate generation unit 120 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 120 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.
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公开(公告)号：EP3697091A1
公开(公告)日：2020-08-19
申请号：EP20168279.6
申请日：2014-03-17
IPC分类号： H04N19/463 , H04N19/593 , H04N19/186
摘要： In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.
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