公开(公告)号：US20120328022A1

公开(公告)日：2012-12-27

申请号：US13529384

申请日：2012-06-21

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： H04N7/32

CPC分类号： H04N19/521 ,  H04N19/13 ,  H04N19/17 ,  H04N19/184 ,  H04N19/1887 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/70 ,  H04N19/91

摘要： An image coding method includes coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.

摘要翻译： 图像编码方法包括：编码表示运动矢量与预测运动矢量之间的差的运动矢量差异，其中编码包括：编码作为水平分量和垂直方向之一的第一分量的一部分的第一部分 运动矢量差的分量; 编码作为与第一分量不同的第二分量的一部分的第二部分，并且是水平分量和垂直分量中的另一部分; 编码作为第一部件的一部分并且与第一部分不同的第三部分; 编码作为所述第二部件的一部分并且与所述第二部分不同的第四部分; 并以所述顺序生成包括第一部分，第二部分，第三部分和第四部分的代码串。

公开(公告)号：US10439637B2

公开(公告)日：2019-10-08

申请号：US13535414

申请日：2012-06-28

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： H04N19/13 ,  H03M7/40 ,  H04N19/186

摘要： The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is one of “cbf_luma”, “cbf_cb”, and “cbf_cr”.

公开(公告)号：US09615107B2

公开(公告)日：2017-04-04

申请号：US13479669

申请日：2012-05-24

申请人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N19/577 ,  H04N19/196 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/51 ,  H04N19/13 ,  H04N19/134 ,  H04N19/102

CPC分类号： H04N19/139 ,  H04N19/102 ,  H04N19/105 ,  H04N19/13 ,  H04N19/134 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/51 ,  H04N19/52 ,  H04N19/577 ,  H04N19/70

摘要： An image coding method for coding an image on a block-by-block basis to generate a bitstream includes: deriving, as a first merging candidate, a merging candidate which is a combination of a prediction direction, a motion vector, and a reference picture index for use in coding of the current block; deriving, as a second merging candidate, a merging candidate having a motion vector which is a predetermined vector; selecting a merging candidate to be used for the coding of the current block from the derived first merging candidate and the derived second merging candidate; and attaching an index for identifying the selected merging candidate to the bitstream.

公开(公告)号：US09456214B2

公开(公告)日：2016-09-27

申请号：US13565384

申请日：2012-08-02

申请人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N7/32 ,  H04N19/46 ,  H04N19/105 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/70

摘要： A moving picture coding method for calculating a motion vector predictor to be used when coding a motion vector of a current block, and coding the current block includes: (S102) obtaining motion vector predictor candidates a fixed number of which is two or more; (S103) selecting the motion vector predictor to be used for coding the motion vector of the current block, from among the motion vector predictor candidates the fixed number of which is two or more; and (S104) coding an index for identifying the selected motion vector predictor according to the fixed number of two or more, wherein the motion vector predictor candidates the fixed number of which is two or more include one or more candidates each having a predetermined second fixed value.

摘要翻译： 一种运动图像编码方法，用于计算当编码当前块的运动矢量时使用的运动矢量预测器，并对当前块进行编码包括：（S102）获得固定数量为两个或更多个的运动矢量预测器候选; （S103）从固定数为2以上的运动矢量预测器候选中选择要用于对当前块的运动矢量进行编码的运动矢量预测器; 以及（S104）根据两个以上的固定数量对用于识别所选择的运动矢量预测器的索引进行编码，其中，其固定数量为两个或更多个的运动矢量预测器候选包括一个或多个候选，每个具有预定的第二固定 值。

公开(公告)号：US09210402B2

公开(公告)日：2015-12-08

申请号：US13534165

申请日：2012-06-27

申请人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N7/28 ,  H04N13/00 ,  H04N19/597 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577

CPC分类号： H04N13/161 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/597

摘要： An image coding method includes: (i) determining, for each of one or more associated blocks, whether to add a motion vector of the associated block to a list, and (ii) adding the motion vector of the associated block to the list when determining that the motion vector of the associated block is to be added to the list; selecting a motion vector from the list as a motion vector predictor; and (i) coding a current block using a motion vector of the current block, and (ii) coding a difference between the motion vector of the current block and the motion vector predictor, and in the determining, it is determined that the motion vector of the associated block is not to be added to the list when an associated picture and an associated reference picture match temporally or when a current picture and a current reference picture match temporally.

摘要翻译： 图像编码方法包括：（i）针对一个或多个关联块中的每一个确定是否将相关块的运动矢量添加到列表，以及（ii）将相关块的运动矢量添加到列表中， 确定相关块的运动矢量将被添加到列表中; 从列表中选择运动矢量作为运动矢量预测器; 以及（i）使用当前块的运动矢量对当前块进行编码，以及（ii）对当前块的运动矢量与运动矢量预测器之间的差进行编码，并且在确定中，确定运动矢量 当相关联的图片和相关联的参考图片在时间上匹配时或当当前图片和当前参考图片在时间上匹配时，相关联的块的不被添加到列表中。

公开(公告)号：US08989271B2

公开(公告)日：2015-03-24

申请号：US13482549

申请日：2012-05-29

申请人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/105 ,  H04N19/51 ,  H04N19/56 ,  H04N19/107 ,  H04N19/503

CPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/503 ,  H04N19/52 ,  H04N19/521

摘要： A moving picture coding apparatus includes: a motion vector predictor candidate calculation unit which calculates motion vector predictor candidates and the number of motion vector predictor candidates; an inter prediction control unit which selects an optimum motion vector predictor candidate; and a variable length coding unit which sets the motion vector predictor candidate list size to the number of motion vector predictor candidates, and assigns a bit string according to the motion vector predictor candidate list size to a motion vector predictor index used for coding a motion vector, thereby performing variable length coding.

摘要翻译： 运动图像编码装置包括：运动矢量预测器候选计算单元，其计算运动矢量预测器候选和运动矢量预测器候选的数量; 选择最佳运动矢量预测器候选的帧间预测控制单元; 以及可变长度编码单元，其将运动矢量预测器候选列表大小设置为运动矢量预测器候选的数量，并且将根据运动矢量预测器候选列表大小的比特串分配给用于编码运动矢量的运动矢量预测器索引 ，从而执行可变长度编码。

公开(公告)号：US08964847B2

公开(公告)日：2015-02-24

申请号：US13477606

申请日：2012-05-22

申请人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N7/12

CPC分类号： H04N19/521 ,  H04N19/105 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/577 ,  H04N19/61 ,  H04N19/65 ,  H04N19/70

摘要： An image coding method bitstream includes: determining a maximum number of a merging candidate which is a combination of a prediction direction, a motion vector, and a reference picture index for use in coding of a current block; deriving a first merging candidate; determining whether or not a total number of the first merging candidate is smaller than the maximum number; deriving a second merging candidate when it is determined that the total number of the first merging candidate is smaller than the maximum number; selecting a merging candidate for use in the coding of the current block from the first merging candidate and the second merging candidate; and coding, using the maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream.

摘要翻译： 图像编码方法比特流包括：确定作为当前块的编码中使用的预测方向，运动矢量和参考图像索引的组合的合并候选的最大数目; 得出第一个合并候选人; 确定所述第一合并候选的总数是否小于所述最大数; 当确定第一合并候选的总数小于最大数目时，导出第二合并候选; 从第一合并候选和第二合并候选中选择用于当前块的编码的合并候选; 以及使用最大数目编码用于识别所选择的合并候选的索引，以及将编码索引附加到比特流。

公开(公告)号：US08855207B2

公开(公告)日：2014-10-07

申请号：US13529384

申请日：2012-06-21

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： H04N11/02 ,  H04N19/51

CPC分类号： H04N19/521 ,  H04N19/13 ,  H04N19/17 ,  H04N19/184 ,  H04N19/1887 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/70 ,  H04N19/91

摘要： An image coding method includes coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.

摘要翻译： 图像编码方法包括：编码表示运动矢量与预测运动矢量之间的差的运动矢量差异，其中编码包括：编码作为水平分量和垂直方向之一的第一分量的一部分的第一部分 运动矢量差的分量; 编码作为与第一分量不同的第二分量的一部分的第二部分，并且是水平分量和垂直分量中的另一部分; 编码作为第一部件的一部分并且与第一部分不同的第三部分; 编码作为所述第二部件的一部分并且与所述第二部分不同的第四部分; 并以所述顺序生成包括第一部分，第二部分，第三部分和第四部分的代码串。

公开(公告)号：US08811761B2

公开(公告)日：2014-08-19

申请号：US13816838

申请日：2012-06-28

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： G06K9/36 ,  H04N7/26 ,  G06T9/00 ,  H04N7/34

CPC分类号： H04N19/593 ,  G06T9/004 ,  H04N19/13 ,  H04N19/136 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/91

摘要： An image coding method includes coding first binary data indicating a first intra prediction mode and second binary data indicating a second intra prediction mode, wherein in the coding, a first context adaptive portion which is part of the first binary data and a second context adaptive portion which is part of the second binary data are coded by context adaptive binary arithmetic coding, a first bypass portion which is different part of the first binary data and a second bypass portion which is different part of the second binary data are coded by bypass coding, and coded data is generated which includes the first context adaptive portion, the second context adaptive portion, the first bypass portion, and the second bypass portion, the first bypass portion and the second bypass portion being included subsequent to the first context adaptive portion and the second context adaptive portion.

摘要翻译： 图像编码方法包括编码表示第一帧内预测模式的第一二进制数据和表示第二帧内预测模式的第二二进制数据，其中在编码中，作为第一二进制数据的一部分的第一上下文自适应部分和第二上下文自适应部分 作为第二二进制数据的一部分的上下文自适应二进制算术编码进行编码，作为第一二进制数据的不同部分的第一旁路部分和作为第二二进制数据的不同部分的第二旁路部分通过旁路编码进行编码， 并且生成包括第一上下文自适应部分，第二上下文自适应部分，第一旁路部分和第二旁路部分的编码数据，第一旁路部分和第二旁路部分包括在第一上下文自适应部分之后，并且 第二上下文自适应部分。

公开(公告)号：US08792739B2

公开(公告)日：2014-07-29

申请号：US13535527

申请日：2012-06-28

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： G06K9/36

CPC分类号： H04N19/13 ,  H04N19/103 ,  H04N19/105 ,  H04N19/136 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/583 ,  H04N19/70 ,  H04N19/91

摘要： The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is (i) “merge_flag”, (ii) “ref_idx_l0” or “ref_idx_l1”, (iii) “inter_pred_flag”, (iv) “mvd_l0” or “mvd_l1”, (v) “no_residual_data_flag”, (vi) “intra_chroma_pred_mode”, (vii) “cbf_luma”, and (viii) “cbf_cb” or “cbf_cr”.

摘要翻译： 图像解码方法包括：从多个上下文中确定要处理的当前块中使用的上下文; 以及使用所确定的上下文对与当前块相对应的比特序列执行算术解码，其中在所述确定中：在使用当前块的相邻块的控制参数的条件下确定所述上下文，当所述信号类型为 第一类型，相邻块是当前块的左块和上块; 并且当信号类型是第二类型时，在上限块的控制参数的条件下确定上下文，并且第二类型是（i）“merge_flag”，（ii）“ref_idx_10”或“ref_idx_l1 “，（iii）”inter_pred_flag“，（iv）”mvd_l0“或”mvd_l1“，（v）”no_residual_data_flag“，（vi）”intra_chroma_pred_mode“，（vii）”cbf_luma“和（viii）”cbf_cb“ cbf_cr“。