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1. 发明申请

US20200068219A1 MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING APPARATUS 审中-公开
公开(公告)号：US20200068219A1
公开(公告)日：2020-02-27
申请号：US16666524
申请日：2019-10-29
申请人： Tagivan II LLC
发明人： Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/56 , H04N19/117 , H04N19/513 , H04N19/51 , H04N19/52 , H04N19/577 , H04N19/573
摘要： Obtaining one or more motion vector predictor candidates includes: (a1) generating a motion vector predictor candidate, based on motion vectors of first adjacent blocks adjacent to a block to be processed in a first direction; and (a2) generating a motion vector predictor candidate, based on motion vectors of second adjacent blocks adjacent to the block to be processed in a second direction, and step (a2) includes: determining whether the first adjacent blocks include an inter-predicted block; and searching for a motion vector on which scaling processing can be performed from among the motion vectors of the second adjacent blocks when it is determined that the first adjacent blocks do not include an inter-predicted block, and executing, when the motion vector on which scaling processing can be performed is obtained in the search, scaling processing on the motion vector obtained in the search.

2. 发明申请

US20180270483A1 IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, AND IMAGE DECODING APPARATUS 审中-公开
公开(公告)号：US20180270483A1
公开(公告)日：2018-09-20
申请号：US15984488
申请日：2018-05-21
申请人： Tagivan II LLC
发明人： Youji SHIBAHARA , Takahiro NISHI , Toshiyasu SUGIO , Kyoko TANIKAWA , Toru MATSUNOBU , Hisao SASAI , Kengo TERADA
IPC分类号： H04N19/124 , H04N19/463 , H04N19/96 , H04N19/61 , G06T9/00 , H04N19/176 , H04N19/119
摘要： An image coding method, comprising: subtracting a prediction signal from the input image signal for each coding unit, thereby generating respective prediction error signals; performing orthogonal transform and quantization on a corresponding one of the prediction error signals for each transform unit, eventually generating quantization coefficients; and coding pieces of management information indicating a structure of the transform units and the quantization coefficients into a tree structure. Each of the transform units corresponds to a corresponding one of leaf nodes in the tree structure. In the coding, for each leaf node, management information and a quantization coefficient are coded, eventually generating a coded signal in which the coded management information and the coded quantization coefficient are arranged in succession for each leaf node.

3. 发明申请

US20190261023A1 IMAGE CODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS 审中-公开
公开(公告)号：US20190261023A1
公开(公告)日：2019-08-22
申请号：US16404052
申请日：2019-05-06
申请人： Tagivan II LLC
发明人： Hisao SASAI , Takahiro NISHI , Youji SHIBAHARA , Toshiyasu SUGIO , Kyoko TANIKAWA , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/91 , H04N19/46 , H04N19/12
摘要： An image coding method including: binarizing last position information to generate (i) a binary signal which includes a first signal having a length smaller than or equal to a predetermined maximum length and does not include a second signal or (ii) a binary signal which includes the first signal having the predetermined maximum length and the second signal; first coding for arithmetically coding each of binary symbols included in the first signal using a context switched among a plurality of contexts according to a bit position of the binary symbol; and second coding for arithmetically coding the second signal using a fixed probability when the binary signal includes the second signal, wherein in the first coding, a binary symbol at a last bit position of the first signal is arithmetically coded using a context exclusive to the last bit position, when the first signal has the predetermined maximum length.

4. 发明申请

US20180332302A1 MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING APPARATUS 审中-公开
公开(公告)号：US20180332302A1
公开(公告)日：2018-11-15
申请号：US16043678
申请日：2018-07-24
申请人： Tagivan II LLC
发明人： Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/56 , H04N19/513 , H04N19/577 , H04N19/573 , H04N19/117 , H04N19/52 , H04N19/51
CPC分类号： H04N19/56 , H04N19/117 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/573 , H04N19/577
摘要： Obtaining one or more motion vector predictor candidates includes: (a1) generating a motion vector predictor candidate, based on motion vectors of first adjacent blocks adjacent to a block to be processed in a first direction; and (a2) generating a motion vector predictor candidate, based on motion vectors of second adjacent blocks adjacent to the block to be processed in a second direction, and step (a2) (S500) includes: (S520) determining whether the first adjacent blocks include an inter-predicted block; and (S530) searching for a motion vector on which scaling processing can be performed from among the motion vectors of the second adjacent blocks when it is determined that the first adjacent blocks do not include an inter-predicted block, and executing, when the motion vector on which scaling processing can be performed is obtained in the search, scaling processing on the motion vector obtained in the search.

5. 发明申请

US20160360201A1 IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, AND IMAGE DECODING APPARATUS 审中-公开
公开(公告)号：US20160360201A1
公开(公告)日：2016-12-08
申请号：US15189246
申请日：2016-06-22
申请人： Tagivan II LLC
发明人： Youji SHIBAHARA , Takahiro NISHI , Toshiyasu SUGIO , Kyoko TANIKAWA , Toru MATSUNOBU , Hisao SASAI , Kengo TERADA
IPC分类号： H04N19/124 , H04N19/119 , H04N19/61
CPC分类号： H04N19/124 , G06T9/004 , H04N19/119 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/96
摘要： An image coding method, comprising: subtracting a prediction signal from the input image signal for each coding unit, thereby generating respective prediction error signals; performing orthogonal transform and quantization on a corresponding one of the prediction error signals for each transform unit, eventually generating quantization coefficients; and coding pieces of management information indicating a structure of the transform units and the quantization coefficients into a tree structure. Each of the transform units corresponds to a corresponding one of leaf nodes in the tree structure. In the coding, for each leaf node, management information and a quantization coefficient are coded, eventually generating a coded signal in which the coded management information and the coded quantization coefficient are arranged in succession for each leaf node.

6. 发明申请

US20230133884A1 MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING APPARATUS 有权
公开(公告)号：US20230133884A1
公开(公告)日：2023-05-04
申请号：US18087981
申请日：2022-12-23
申请人： Tagivan II LLC
发明人： Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/56 , H04N19/573 , H04N19/577 , H04N19/52 , H04N19/51 , H04N19/513 , H04N19/117
摘要： Obtaining one or more motion vector predictor candidates includes: (a1) generating a motion vector predictor candidate, based on motion vectors of first adjacent blocks adjacent to a block to be processed in a first direction; and (a2) generating a motion vector predictor candidate, based on motion vectors of second adjacent blocks adjacent to the block to be processed in a second direction, and step (a2) includes: determining whether the first adjacent blocks include an inter-predicted block; and searching for a motion vector on which scaling processing can be performed from among the motion vectors of the second adjacent blocks when it is determined that the first adjacent blocks do not include an inter-predicted block, and executing, when the motion vector on which scaling processing can be performed is obtained in the search, scaling processing on the motion vector obtained in the search.

7. 发明申请

US20210218988A1 MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING APPARATUS 有权
公开(公告)号：US20210218988A1
公开(公告)日：2021-07-15
申请号：US17215065
申请日：2021-03-29
申请人： Tagivan II LLC
发明人： Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/56 , H04N19/573 , H04N19/577 , H04N19/52 , H04N19/51 , H04N19/513 , H04N19/117
摘要： Obtaining one or more motion vector predictor candidates includes: (a1) generating a motion vector predictor candidate, based on motion vectors of first adjacent blocks adjacent to a block to be processed in a first direction; and (a2) generating a motion vector predictor candidate, based on motion vectors of second adjacent blocks adjacent to the block to be processed in a second direction, and step (a2) includes: determining whether the first adjacent blocks include an inter-predicted block; and searching for a motion vector on which scaling processing can be performed from among the motion vectors of the second adjacent blocks when it is determined that the first adjacent blocks do not include an inter-predicted block, and executing, when the motion vector on which scaling processing can be performed is obtained in the search, scaling processing on the motion vector obtained in the search.

8. 发明申请

US20190230378A1 MOVING PICTURE CODING METHOD, MOVING PICTURE CODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING APPARATUS 审中-公开
公开(公告)号：US20190230378A1
公开(公告)日：2019-07-25
申请号：US16367482
申请日：2019-03-28
申请人： Tagivan II LLC
发明人： Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/56 , H04N19/513 , H04N19/577 , H04N19/117 , H04N19/51 , H04N19/52 , H04N19/573
摘要： Obtaining one or more motion vector predictor candidates includes: (a1) generating a motion vector predictor candidate, based on motion vectors of first adjacent blocks adjacent to a block to be processed in a first direction; and (a2) generating a motion vector predictor candidate, based on motion vectors of second adjacent blocks adjacent to the block to be processed in a second direction, and step (a2) includes: determining whether the first adjacent blocks include an inter-predicted block; and searching for a motion vector on which scaling processing can be performed from among the motion vectors of the second adjacent blocks when it is determined that the first adjacent blocks do not include an inter-predicted block, and executing, when the motion vector on which scaling processing can be performed is obtained in the search, scaling processing on the motion vector obtained in the search.

9. 发明申请

US20170289578A1 IMAGE CODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS 审中-公开
公开(公告)号：US20170289578A1
公开(公告)日：2017-10-05
申请号：US15623588
申请日：2017-06-15
申请人： Tagivan II LLC
发明人： Hisao SASAI , Takahiro NISHI , Youji SHIBAHARA , Toshiyasu SUGIO , Kyoko TANIKAWA , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/91 , H04N19/46 , H04N19/12
CPC分类号： H04N19/91 , H04N19/12 , H04N19/46
摘要： An image coding method including: binarizing last position information to generate (i) a binary signal which includes a first signal having a length smaller than or equal to a predetermined maximum length and does not include a second signal or (ii) a binary signal which includes the first signal having the predetermined maximum length and the second signal; first coding for arithmetically coding each of binary symbols included in the first signal using a context switched among a plurality of contexts according to a bit position of the binary symbol; and second coding for arithmetically coding the second signal using a fixed probability when the binary signal includes the second signal, wherein in the first coding, a binary symbol at a last bit position of the first signal is arithmetically coded using a context exclusive to the last bit position, when the first signal has the predetermined maximum length.

10. 发明申请

US20170064340A1 IMAGE CODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS 审中-公开
标题翻译：图像编码方法，图像编码装置，图像解码方法和图像解码装置
公开(公告)号：US20170064340A1
公开(公告)日：2017-03-02
申请号：US15275980
申请日：2016-09-26
申请人： Tagivan II LLC
发明人： Hisao SASAI , Takahiro NISHI , Youji SHIBAHARA , Toshiyasu SUGIO , Kyoko TANIKAWA , Toru MATSUNOBU , Kengo TERADA
IPC分类号： H04N19/91 , H04N19/46 , H04N19/12
CPC分类号： H04N19/91 , H04N19/12 , H04N19/46
摘要： An image coding method including: binarizing last position information to generate (i) a binary signal which includes a first signal having a length smaller than or equal to a predetermined maximum length and does not include a second signal or (ii) a binary signal which includes the first signal having the predetermined maximum length and the second signal; first coding for arithmetically coding each of binary symbols included in the first signal using a context switched among a plurality of contexts according to a bit position of the binary symbol; and second coding for arithmetically coding the second signal using a fixed probability when the binary signal includes the second signal, wherein in the first coding, a binary symbol at a last bit position of the first signal is arithmetically coded using a context exclusive to the last bit position, when the first signal has the predetermined maximum length.
摘要翻译：一种图像编码方法，包括：二进制化最后位置信息以产生（i）二进制信号，其包括具有小于或等于预定最大长度的长度的第一信号，并且不包括第二信号或（ii）二进制信号，包括具有预定最大长度和第二信号的第一信号; 根据所述二进制符号的比特位置，使用在多个上下文中切换的上下文来对包含在所述第一信号中的每个二进制符号进行算术编码的第一编码; 以及当所述二进制信号包括所述第二信号时，使用固定概率对所述第二信号进行算术编码的第二编码，其中在所述第一编码中，所述第一信号的最后位位置处的二进制符号使用除最后一个当第一信号具有预定的最大长度时。

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