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1.发明公开公开(公告)号：US20240129536A1
公开(公告)日：2024-04-18
申请号：US18396893
申请日：2023-12-27
发明人： Ye-Kui Wang , Yang Wang , Li Zhang
IPC分类号： H04N19/70 , H04N19/103 , H04N19/136 , H04N19/172 , H04N19/184
CPC分类号： H04N19/70 , H04N19/103 , H04N19/136 , H04N19/172 , H04N19/184
摘要： A mechanism for processing video data is disclosed. A value of an extended dependent random-access point (EDRAP) leading pictures decodable flag (edrap_leading_pictures_decodable_flag) syntax element is determined. A conversion can then be performed between a visual media data and a bitstream based on the edrap_leading_pictures_decodable_flag syntax element. The value of the edrap_leading_pictures_decodable_flag indicates whether ordering constraints are imposed on the EDRAP picture.
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公开(公告)号：US20230396809A1
公开(公告)日：2023-12-07
申请号：US18450647
申请日：2023-08-16
发明人： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC分类号： H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/46
CPC分类号： H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/46
摘要： Systems, methods, and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号：US11792435B2
公开(公告)日：2023-10-17
申请号：US17962141
申请日：2022-10-07
发明人： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC分类号： H04N19/46 , H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174
CPC分类号： H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/46
摘要： Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号：US20230239511A1
公开(公告)日：2023-07-27
申请号：US18192098
申请日：2023-03-29
发明人： Ye-Kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC分类号： H04N19/70 , H04N19/187 , H04N19/136
CPC分类号： H04N19/70 , H04N19/187 , H04N19/136
摘要： Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field included in the bitstream indicates whether the bitstream comprises one or more video layers that represent auxiliary information.
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公开(公告)号：US20230063674A1
公开(公告)日：2023-03-02
申请号：US17968958
申请日：2022-10-19
发明人： Ye-Kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC分类号： H04N19/70 , H04N19/46 , H04N19/176 , H04N19/174
摘要： Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a block of a video and a bitstream of the video according to a rule. The rule specifies that whether a syntax flag indicating whether transform skip residual coding is enabled at a video unit level is present in the bitstream is based on values of a first syntax element indicating usage of sign data hiding in the video unit and a second syntax element indicating usage of dependent quantization in the video unit.
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公开(公告)号：US20230058538A1
公开(公告)日：2023-02-23
申请号：US17958531
申请日：2022-10-03
发明人： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC分类号： H04N19/117 , H04N19/70 , H04N19/124 , H04N19/186 , H04N19/196
摘要： Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video and a bitstream of the video according to a format rule. The format rule specifies that a first field at a sequence level or a picture level or a slice level controls a value of a second field in an adaptation parameter set.
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公开(公告)号：US20230039617A1
公开(公告)日：2023-02-09
申请号：US17942618
申请日：2022-09-12
发明人： Zhipin Deng , Ye-Kui Wang , Li Zhang , Kai Zhang
IPC分类号： H04N19/12 , H04N19/176 , H04N19/70 , H04N19/157
摘要： Methods, systems and apparatus for video processing are described. One example video processing method includes performing a conversion between a video including a video block and a bitstream of the video according to a rule, wherein the rule specifies whether to include, in a slice header (SH), a first syntax element that indicates whether a transform skip based residual coding is disabled for a slice, and wherein the rule specifies that whether to include the first syntax element in the SH is selectively based on a second syntax element in a sequence parameter set (SPS) that indicates whether a TS mode is enabled for the video block.
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公开(公告)号：US20240340459A1
公开(公告)日：2024-10-10
申请号：US18747861
申请日：2024-06-19
发明人： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang
IPC分类号： H04N19/70 , H04N19/105 , H04N19/174
CPC分类号： H04N19/70 , H04N19/105 , H04N19/174
摘要： Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a current picture of a video and a bitstream of the video according to a rule. The rule specifies that a number of entries in a reference picture list of the current picture is greater than 0 in response to (1) one or more slices in the current picture being allowed to have a slice type other than an Intra (I) slice type, and (2) reference picture list (RPL) information being present in a picture header.
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公开(公告)号：US12034975B2
公开(公告)日：2024-07-09
申请号：US17897998
申请日：2022-08-29
发明人： Ye-Kui Wang , Zhipin Deng , Li Zhang , Kai Zhang , Jizheng Xu
IPC分类号： H04N19/70 , H04N19/105 , H04N19/117 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/189 , H04N19/196 , H04N19/46 , H04N19/58 , H04N19/635 , H04N19/82 , H04N19/86 , H04N19/127
CPC分类号： H04N19/70 , H04N19/105 , H04N19/117 , H04N19/172 , H04N19/174 , H04N19/188 , H04N19/189 , H04N19/197 , H04N19/46 , H04N19/58 , H04N19/635 , H04N19/82 , H04N19/86 , H04N19/127
摘要： A video processing method includes performing a conversion between a video including one or more pictures and a bitstream of the video. The bitstream conforms to a format rule specifying that one or more syntax elements indicative of coding information are selectively included in a picture parameter set of the bitstream responsive to whether it is indicated that each picture referring to the picture parameter set includes a single slice.
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公开(公告)号：US12015772B2
公开(公告)日：2024-06-18
申请号：US17950443
申请日：2022-09-22
发明人： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC分类号： H04N19/105 , H04N19/117 , H04N19/132 , H04N19/139 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/52 , H04N19/70 , H04N19/80
CPC分类号： H04N19/117 , H04N19/105 , H04N19/132 , H04N19/139 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/52 , H04N19/70 , H04N19/80
摘要： A method includes determining, for a conversion between a video block of a video and a bitstream of the video, a size of prediction block corresponding to the video block according to a rule. The method also includes performing the conversion based on the determining. The rule specifies that a first size of the prediction block is determined responsive to whether a prediction refinement using optical flow technique is used for coding the video block. The video block has a second size and is coded using an affine merge mode or an affine advanced motion vector prediction mode.
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