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公开(公告)号：EP3618437A1
公开(公告)日：2020-03-04
申请号：EP18790905.6
申请日：2018-03-26
IPC分类号： H04N19/11 , H04N19/136 , H04N19/176 , H04N19/196 , H04N19/96
摘要： Provided is a picture encoding device that divides a picture into blocks and performs encoding for each of the divided blocks. A primary signal block divider (101) divides a primary signal of the picture into rectangles having a predetermined size, and generates a primary signal block. A secondary signal block divider (101) divides a secondary signal of the picture into rectangles having a predetermined size, and generates a secondary signal block. A primary signal predictor (102) predicts a primary signal, and a secondary signal predictor (102) predicts a secondary signal. The secondary signal predictor (102) can perform inter prediction of predicting a secondary signal from an encoded primary signal, and the inter prediction is restricted based on at least one of a size of the primary signal block and a size of the secondary signal block.
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公开(公告)号：EP4387234A3
公开(公告)日：2024-07-03
申请号：EP24173128.0
申请日：2013-03-26
发明人： KUMAKURA, Toru , FUKUSHIMA, Shigeru
IPC分类号： H04N19/13 , H04N19/18 , H04N19/70 , H04N19/176 , H04N19/593 , H04N19/91
CPC分类号： H04N19/91 , H04N19/176 , H04N19/593 , H04N19/70 , H04N19/13 , H04N19/18
摘要： In a picture coding device that partitions difference information that is a transform coefficient of a difference signal between a coding target picture and a prediction picture into a plurality of partial regions, and codes difference coefficients in units of partial regions, a significant coefficient information coding controller 706 and an arithmetic encoder 701 code significant difference coefficient information indicating that a difference coefficient value is not zero and significant for each of the difference coefficients in the partial region of the coding target. A difference coefficient value coding controller 707 and the arithmetic encoder 701 code difference coefficient values when significant difference coefficient information is significant for each of pixels in the partial region of the coding target. The significant coefficient information coding controller 706 decides a context for coding the significant difference coefficient information in the partial region of the coding target based on information indicating significance of the difference coefficient in the coded partial region.
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公开(公告)号：EP4376413A1
公开(公告)日：2024-05-29
申请号：EP24167855.6
申请日：2013-04-12
发明人： KUMAKURA, Toru , FUKUSHIMA, Shigeru
IPC分类号： H04N19/70 , H04N19/13 , H04N19/18 , H04N19/176
CPC分类号： H04N19/18 , H04N19/13 , H04N19/70 , H04N19/176
摘要： In a picture coding device that partitions differential information between a picture that is a coding target and a picture that is a prediction target into a plurality of sub blocks and codes the partitioned sub blocks in a predetermined sequence, a significant sub block information coding controller (708) and a calculation encoder (701) code significant sub block information that represents whether or not all the values of differential coefficients belonging to the sub block are zero. A significant coefficient information coding controller (706) and the calculation encoder (701) code significant differential coefficient information that represents whether or not the value of the differential coefficient is zero. A differential coefficient value coding controller (707) and the calculation encoder (701) code the value of the differential coefficient.
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公开(公告)号：EP3923582A1
公开(公告)日：2021-12-15
申请号：EP20769207.0
申请日：2020-03-06
发明人： TAKEHARA, Hideki , NAKAMURA, Hiroya , SAKAZUME, Satoru , FUKUSHIMA, Shigeru , KUMAKURA, Toru , KURASHIGE, Hiroyuki
摘要： There is provided a technique including: a merging candidate constructor structured to construct a merging candidate list including merging candidates having a maximum number of merging candidates including spatial merging candidates; a normal merging candidate selector structured to select a normal merging candidate that is uni-prediction or bi-prediction from the merging candidate list based on a merge index; and a triangle merging candidate selector structured to select a first triangle merging candidate that is uni-prediction from the merging candidate list based on a first triangle merge index and select a second triangle merging candidate that is uni-prediction based on a second triangle merge index, in which a first maximum number of triangle merging candidates regarding the first triangle merge index is the same as the maximum number of merging candidates.
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公开(公告)号：EP3910947A1
公开(公告)日：2021-11-17
申请号：EP21181701.0
申请日：2013-03-26
发明人： KUMAKURA, Toru , FUKUSHIMA, Shigeru
IPC分类号： H04N19/13 , H04N19/18 , H04N19/70 , H04N19/176 , H04N19/593 , H04N19/91
摘要： In a picture coding device that partitions difference information that is a transform coefficient of a difference signal between a coding target picture and a prediction picture into a plurality of partial regions, and codes difference coefficients in units of partial regions, a significant coefficient information coding controller 706 and an arithmetic encoder 701 code significant difference coefficient information indicating that a difference coefficient value is not zero and significant for each of the difference coefficients in the partial region of the coding target. A difference coefficient value coding controller 707 and the arithmetic encoder 701 code difference coefficient values when significant difference coefficient information is significant for each of pixels in the partial region of the coding target. The significant coefficient information coding controller 706 decides a context for coding the significant difference coefficient information in the partial region of the coding target based on information indicating significance of the difference coefficient in the coded partial region.
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公开(公告)号：EP3910946A1
公开(公告)日：2021-11-17
申请号：EP21181693.9
申请日：2013-03-26
发明人： KUMAKURA, Toru , FUKUSHIMA, Shigeru
IPC分类号： H04N19/13 , H04N19/18 , H04N19/70 , H04N19/176 , H04N19/593 , H04N19/91
摘要： In a picture coding device that partitions difference information that is a transform coefficient of a difference signal between a coding target picture and a prediction picture into a plurality of partial regions, and codes difference coefficients in units of partial regions, a significant coefficient information coding controller 706 and an arithmetic encoder 701 code significant difference coefficient information indicating that a difference coefficient value is not zero and significant for each of the difference coefficients in the partial region of the coding target. A difference coefficient value coding controller 707 and the arithmetic encoder 701 code difference coefficient values when significant difference coefficient information is significant for each of pixels in the partial region of the coding target. The significant coefficient information coding controller 706 decides a context for coding the significant difference coefficient information in the partial region of the coding target based on information indicating significance of the difference coefficient in the coded partial region.
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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：EP3515080B1
公开(公告)日：2020-09-09
申请号：EP19161423.9
申请日：2013-04-12
发明人： KUMAKURA, Toru , FUKUSHIMA, Shigeru
IPC分类号： H04N19/70 , H04N19/13 , H04N19/18 , H04N19/176
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公开(公告)号：EP4407993A2
公开(公告)日：2024-07-31
申请号：EP24181061.3
申请日：2020-03-06
发明人： FUKUSHIMA, Shigeru , TAKEHARA, Hideki , NAKAMURA, Hiroya , SAKAZUME, Satoru , KUMAKURA, Toru , KURASHIGE, Hiroyuki
IPC分类号： H04N19/70
CPC分类号： H04N19/52 , H04N19/70 , H04N19/537
摘要： There is provided a technique that includes a merging candidate list constructor that constructs a merging candidate list including spatial merging candidates, and a triangle merging candidate selector that selects, from the merging candidate list, a first triangle merging candidate that is uni-prediction and a second triangle merging candidate that is uni-prediction, in which the triangle merging candidate selector derives a uni-prediction motion information candidate having a same priority in the first triangle merging candidate and the second triangle merging candidate.
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公开(公告)号：EP4387234A2
公开(公告)日：2024-06-19
申请号：EP24173128.0
申请日：2013-03-26
发明人： KUMAKURA, Toru , FUKUSHIMA, Shigeru
IPC分类号： H04N19/91
CPC分类号： H04N19/91 , H04N19/176 , H04N19/593 , H04N19/70 , H04N19/13 , H04N19/18
摘要： In a picture coding device that partitions difference information that is a transform coefficient of a difference signal between a coding target picture and a prediction picture into a plurality of partial regions, and codes difference coefficients in units of partial regions, a significant coefficient information coding controller 706 and an arithmetic encoder 701 code significant difference coefficient information indicating that a difference coefficient value is not zero and significant for each of the difference coefficients in the partial region of the coding target. A difference coefficient value coding controller 707 and the arithmetic encoder 701 code difference coefficient values when significant difference coefficient information is significant for each of pixels in the partial region of the coding target. The significant coefficient information coding controller 706 decides a context for coding the significant difference coefficient information in the partial region of the coding target based on information indicating significance of the difference coefficient in the coded partial region.
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