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51.
公开(公告)号:US20190261013A1
公开(公告)日:2019-08-22
申请号:US16399082
申请日:2019-04-30
申请人: Sun Patent Trust
发明人: Kengo TERADA , Takahiro NISHI , Hisao SASAI
IPC分类号: H04N19/503 , H04N19/16 , H04N19/159 , H04N19/31 , H04N19/172 , H04N19/105 , H04N19/187
摘要: An image encoding method includes: determining whether a current picture is a TSA picture or a trailing picture; and encoding a plurality of pictures according to whether the current picture is the TSA picture or a trailing picture. The determining includes: determining the current picture to be the TSA picture when the current picture does not belong to the highest layer and corresponds to a first field, and determining the current picture to be the trailing picture when the current picture belongs to the highest layer or corresponds to a second field.
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公开(公告)号:US20190238876A1
公开(公告)日:2019-08-01
申请号:US16381253
申请日:2019-04-11
申请人: Sun Patent Trust
发明人: Kengo TERADA , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toshiyasu SUGIO , Toru MATSUNOBU
IPC分类号: H04N19/44 , H04N19/91 , H04N19/90 , H04N19/60 , H04N19/176 , H04N19/70 , H04N19/18 , H04N19/167 , H04N19/13
摘要: An image coding method for coding an image on a block-by-block basis, includes: selecting, for each of a plurality of sub-blocks included in a coding-target block and each including a plurality of coefficients, a context for performing arithmetic coding on a parameter indicating a coding-target coefficient included in the sub-block from a context set corresponding to the sub-block, based on at least one reference coefficient located around the coding-target coefficient, the coding-target block being a transform unit; and performing arithmetic coding on the parameter indicating the coding-target coefficient using probability information about the selected context, wherein, in the selecting, the context is selected from the context set, the context set corresponding to a sum of (i) a value indicating a position in a horizontal direction of the sub-block in the coding-target block and (ii) a value indicating a position in a vertical direction of the sub-block in the coding-target block.
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53.
公开(公告)号:US20190174147A1
公开(公告)日:2019-06-06
申请号:US16266339
申请日:2019-02-04
申请人: Sun Patent Trust
发明人: Hisao SASAI , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Toshiyasu SUGIO , Toru MATSUNOBU , Kengo TERADA
IPC分类号: H04N19/91 , H04N19/174 , H04N19/436 , H04N19/70 , H04N19/13 , H04N19/136
CPC分类号: H04N19/91 , H04N19/13 , H04N19/136 , H04N19/174 , H04N19/436 , H04N19/70
摘要: An image decoding method of decoding, on a per-block basis, a coded image included in a bitstream, includes: performing arithmetic decoding on a current block to be decoded; determining whether or not the current block is at the end of a slice; determining, when it is determined that the current block is not at the end of the slice, whether or not the current block is at the end of a sub-stream which is a structural unit of the image that is different from the slice; and performing arithmetic decoding on a sub-last bit and performing arithmetic decoding termination, when it is determined that the current block is at the end of the sub-stream.
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54.
公开(公告)号:US20190141344A1
公开(公告)日:2019-05-09
申请号:US16236858
申请日:2018-12-31
申请人: Sun Patent Trust
发明人: Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号: H04N19/51 , H04N19/46 , H04N19/172 , H04N19/90 , H04N19/105 , H04N19/159
摘要: A moving picture coding method includes: making a determination as to whether or not to code all blocks in a current picture in the skip mode; setting, based on a result of the determination, a first flag indicating whether or not a temporally neighboring block is to be referenced, a value of a parameter for determining a total number of merging candidates, and a second flag for each block included in the current picture, the second flag indicating whether or not the block is to be coded in the skip mode; calculating, as a merging candidate, a neighboring block usable for merging; and coding an index which indicates a merging candidate to be used for coding of the current block and attaching the coded index to a bitstream.
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55.
公开(公告)号:US20190052906A1
公开(公告)日:2019-02-14
申请号:US16164074
申请日:2018-10-18
申请人: Sun Patent Trust
发明人: Satoshi YOSHIKAWA , Hisao SASAI , Kengo TERADA
IPC分类号: H04N19/61 , H04N19/557 , H04N19/547 , H04N19/537 , H04N19/157 , H04N19/44 , H04N19/42 , H04N19/127
摘要: An image coding method includes selecting two or more transform components from among a plurality of transform components that include a translation component and non-translation components, the two or more transform components serving as reference information that represents a reference destination of a current block; coding selection information that identifies the two or more transform components that have been selected from among the plurality of transform components; and coding the reference information of the current block by using reference information of a coded block different from the current block.
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公开(公告)号:US20180302639A1
公开(公告)日:2018-10-18
申请号:US16014260
申请日:2018-06-21
申请人: Sun Patent Trust
发明人: Sue Mon Thet NAING , Chong Soon LIM , Kyaw Kyaw WIN , Hai Wei SUN , Viktor WAHADANIAH , Takahiro NISHI , Hisao SASAI , Youji SHIBAHARA , Toshiyasu SUGIO , Kyoko TANIKAWA , Toru MATSUNOBU , Kengo TERADA
IPC分类号: H04N19/51 , H04N19/107 , H04N19/52 , H04N19/46 , H04N19/105 , H04N19/70 , H04N19/172 , H04N19/174 , H04N19/184
CPC分类号: H04N19/51 , H04N19/105 , H04N19/107 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/46 , H04N19/52 , H04N19/70
摘要: An image coding method includes: selecting a first picture from plural pictures; setting a first temporal motion vector prediction flag which is associated with the first picture and is a temporal motion vector prediction flag indicating whether or not temporal motion vector prediction is to be used, to indicate that the temporal motion vector prediction is not to be used, and coding the first temporal motion vector prediction flag; coding the first picture without using the temporal motion vector prediction; and coding a second picture which follows the first picture in coding order, with referring to a motion vector of a picture preceding the first picture in coding order being prohibited.
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公开(公告)号:US20180124416A1
公开(公告)日:2018-05-03
申请号:US15852230
申请日:2017-12-22
申请人: Sun Patent Trust
发明人: Toshiyasu SUGIO , Takahiro NISHI , Youji SHIBAHARA , Kyoko TANIKAWA , Hisao SASAI , Toru MATSUNOBU , Kengo TERADA
IPC分类号: H04N19/51 , H04N19/96 , H04N19/52 , H04N19/513 , H04N19/593 , H04N19/107 , H04N19/176 , H04N19/61
CPC分类号: H04N19/51 , H04N19/107 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/96
摘要: An image decoding method includes: dividing a current block into sub-blocks; deriving, for each sub-block, one or more prediction information candidates; obtaining an index; and decoding the current block using the prediction information candidate selected by the index. The deriving includes: determining whether a neighboring block neighboring each sub-block is included in the current block, and when not included in the current block, determining the neighboring block to be a reference block available to the sub-block, and when included in the current block, determining the neighboring block not to be the reference block; and deriving a prediction information candidate of the sub-block from prediction information of the reference block; and when the number of prediction information candidates is smaller than a predetermined number, generating one or more new candidates without using the prediction information of the reference block till the number of prediction information candidates reaches the predetermined number.
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公开(公告)号:US20170324953A1
公开(公告)日:2017-11-09
申请号:US15656081
申请日:2017-07-21
申请人: Sun Patent Trust
发明人: Hisao SASAI , Kengo TERADA , Youji SHIBAHARA , Kyoko TANIKAWA , Toshiyasu SUGIO , Toru MATSUNOBU
IPC分类号: H04N19/105 , H04N19/70 , H04N19/91 , H04N19/463 , H04N19/82
CPC分类号: H04N19/105 , H04N19/132 , H04N19/463 , H04N19/70 , H04N19/82 , H04N19/91
摘要: A moving picture coding method includes: performing context adaptive binary arithmetic coding in which a variable probability value is used, on first information among multiple types of sample adaptive offset (SAO) information used for SAO that is a process of assigning an offset value to a pixel value of a pixel included in an image generated by coding the input image; and continuously performing bypass arithmetic coding in which a fixed probability value is used, on second information and third information among the multiple types of the SAO information, wherein the coded second and third information are placed after the coded first information in the bit stream.
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59.
公开(公告)号:US20170230679A1
公开(公告)日:2017-08-10
申请号:US15496435
申请日:2017-04-25
申请人: Sun Patent Trust
发明人: Kengo TERADA , Takahiro NISHI , Hisao SASAI
IPC分类号: H04N19/503 , H04N19/105 , H04N19/159 , H04N19/31
CPC分类号: H04N19/503 , H04N19/105 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/187 , H04N19/31
摘要: An image encoding method includes: determining whether a current picture is a TSA picture or a trailing picture; and encoding a plurality of pictures according to whether the current picture is the TSA picture or a trailing picture. The determining includes: determining the current picture to be the TSA picture when the current picture does not belong to the highest layer and corresponds to a first field, and determining the current picture to be the trailing picture when the current picture belongs to the highest layer or corresponds to a second field.
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60.
公开(公告)号:US20170099499A1
公开(公告)日:2017-04-06
申请号:US15379753
申请日:2016-12-15
申请人: Sun Patent Trust
发明人: Satoshi YOSHIKAWA , Hisao SASAI , Kengo TERADA
IPC分类号: H04N19/61 , H04N19/547
CPC分类号: H04N19/61 , H04N19/127 , H04N19/157 , H04N19/42 , H04N19/44 , H04N19/537 , H04N19/547 , H04N19/557
摘要: An image coding method includes selecting two or more transform components from among a plurality of transform components that include a translation component and non-translation components, the two or more transform components serving as reference information that represents a reference destination of a current block; coding selection information that identifies the two or more transform components that have been selected from among the plurality of transform components; and coding the reference information of the current block by using reference information of a coded block different from the current block.
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