公开(公告)号：US20240364887A1

公开(公告)日：2024-10-31

申请号：US18770082

申请日：2024-07-11

申请人： Sun Patent Trust

发明人： Daisaku KOMIYA ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Hisao SASAI ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC分类号： H04N19/124 ,  G06T9/00 ,  H04N19/13 ,  H04N19/134 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/60 ,  H04N19/70

CPC分类号： H04N19/124 ,  G06T9/00 ,  G06T9/005 ,  G06T9/007 ,  G06T9/008 ,  H04N19/13 ,  H04N19/134 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/60 ,  H04N19/70

摘要： A processor obtains pieces of coded data, which are included in a bitstream and generated by coding tiles, and tile boundary independence information, which indicates whether each boundary between the tiles is a first or second boundary. Image data of a first tile is generated by decoding a first code string included in first coded data with reference to decoding information of a decoded tile when the tile boundary independence information indicates the first boundary, and by decoding the first code string without referring to the decoding information when the tile boundary independence information indicates the second boundary. A bit string is added after the first code string to make a bit length of first coded data a multiple of a predetermined N bits, with N being an integer greater than or equal to 2.

公开(公告)号：US20240298000A1

公开(公告)日：2024-09-05

申请号：US18442430

申请日：2024-02-15

申请人： Sun Patent Trust

发明人： Viktor WAHADANIAH ,  Chong Soon LIM ,  Sue Mon Thet NAING ,  Hai Wei SUN ,  Takahiro NISHI ,  Hisao SASAI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU ,  Kengo TERADA

IPC分类号： H04N19/134 ,  H04N19/105 ,  H04N19/115 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42 ,  H04N19/423 ,  H04N19/44 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

CPC分类号： H04N19/134 ,  H04N19/105 ,  H04N19/115 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42 ,  H04N19/423 ,  H04N19/44 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

摘要： An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; writing, into the sequence parameter set, reference list description defining information for defining a plurality of reference list descriptions corresponding to the buffer descriptions; and writing, into a first header of each processing unit which is included in a coded bitstream, buffer description selecting information for specifying a selected buffer description.

公开(公告)号：US20240163472A1

公开(公告)日：2024-05-16

申请号：US18416468

申请日：2024-01-18

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU

IPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/513 ,  H04N19/52

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

摘要： A moving picture coding apparatus for coding a current block from among blocks in a picture is provided. A motion vector predictor candidate list, having a fixed size, is generated, with the motion vector predictor candidate list including first and second candidates. The motion vector predictor candidate list is generated by: deriving the first candidate from a first motion vector used to code a first block, with the first block being adjacent to the current block; and deriving the second candidate that has a second motion vector that is a non-zero value vector based on an X-Y axis of a fixed offset value, with the second motion vector not being derived by coding a block adjacent to the current block and the fixed offset value being a non-zero value that is added in a picture header and commonly used for the blocks in the picture.

公开(公告)号：US20240121429A1

公开(公告)日：2024-04-11

申请号：US18544808

申请日：2023-12-19

申请人： Sun Patent Trust

发明人： Viktor WAHADANIAH ,  Chong Soon LIM ,  Sue Mon Thet NAING ,  Hai Wei SUN ,  Takahiro NISHI ,  Hisao SASAI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Toshiyasu SUGIO ,  Kengo TERADA ,  Toru MATSUNOBU

IPC分类号： H04N19/527 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58

CPC分类号： H04N19/527 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58

摘要： An image coding method includes: deriving a candidate for a motion vector of a current block from a co-located motion vector; adding the candidate to a list; selecting the motion vector of the current block from the list; and coding the current block, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.

公开(公告)号：US20230412835A1

公开(公告)日：2023-12-21

申请号：US18239947

申请日：2023-08-30

申请人： Sun Patent Trust

发明人： Viktor WAHADANIAH ,  Chong Soon LIM ,  Sue Mon Thet NAING ,  Hai Wei SUN ,  Toshiyasu SUGIO ,  Takahiro NISHI ,  Hisao SASAI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Toru MATSUNOBU ,  Kengo TERADA

IPC分类号： H04N19/56 ,  H04N19/52 ,  H04N19/51 ,  H04N19/58 ,  H04N19/513 ,  H04N19/172 ,  H04N19/176

CPC分类号： H04N19/56 ,  H04N19/52 ,  H04N19/51 ,  H04N19/58 ,  H04N19/513 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

摘要： An image coding method includes: deriving a candidate for a motion vector predictor from a co-located motion vector; adding the candidate to a list; selecting the motion vector predictor from the list; and coding a current block and coding a current motion vector, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.

公开(公告)号：US20230370630A1

公开(公告)日：2023-11-16

申请号：US18226383

申请日：2023-07-26

申请人： Sun Patent Trust

发明人： Viktor WAHADANIAH ,  Chong Soon LIM ,  Sue Mon Thet NAING ,  Hai Wei SUN ,  Takahiro NISHI ,  Hisao SASAI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU ,  Kengo TERADA

IPC分类号： H04N19/50 ,  H04N19/30 ,  H04N19/15 ,  H04N19/174 ,  H04N19/105 ,  H04N19/58 ,  H04N19/70 ,  H04N19/184 ,  H04N19/172

CPC分类号： H04N19/50 ,  H04N19/30 ,  H04N19/15 ,  H04N19/174 ,  H04N19/105 ,  H04N19/58 ,  H04N19/70 ,  H04N19/184 ,  H04N19/172

摘要： An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; selecting one of the buffer descriptions for each processing unit that is a picture or a slice, and writing buffer description selecting information for specifying the selected buffer description, into a first header of the processing unit which is included in the coded bitstream; and coding the processing unit using the selected buffer description, and the buffer description defining information includes long-term information for identifying, among a plurality of reference pictures indicated in the buffer descriptions, a reference picture to be assigned as a long-term reference picture.

公开(公告)号：US20230033242A1

公开(公告)日：2023-02-02

申请号：US17966480

申请日：2022-10-14

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU

IPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/513

摘要： A moving picture coding apparatus for coding a current block is provided. A first candidate is derived from a first motion vector that has been used to code a first block, and it is determined whether a total number of candidates including the first candidate is less than a maximum candidate number. A second candidate having a second motion vector is derived when the total number of the candidates is less than the maximum candidate number, with the second motion vector including a zero vector. A candidate is selected from a plurality of candidates including the first candidate and the second candidate, and the current block is decoded using the selected candidate.

公开(公告)号：US20220408102A1

公开(公告)日：2022-12-22

申请号：US17894682

申请日：2022-08-24

申请人： Sun Patent Trust

发明人： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC分类号： H04N19/176 ,  H04N19/196 ,  H04N19/13 ,  H04N19/61 ,  H04N19/463 ,  H04N19/157 ,  H04N19/21 ,  H04N19/124 ,  H04N19/159 ,  H04N19/593

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 “ref_idx_l0” and “ref_idx_l1”.

公开(公告)号：US20220360809A1

公开(公告)日：2022-11-10

申请号：US17874468

申请日：2022-07-27

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 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/107 ,  H04N19/52 ,  H04N19/105

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.

公开(公告)号：US20220360808A1

公开(公告)日：2022-11-10

申请号：US17869021

申请日：2022-07-20

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 ,  H04N19/52 ,  H04N19/96 ,  H04N19/593 ,  H04N19/513

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.