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公开(公告)号：US12095995B2
公开(公告)日：2024-09-17
申请号：US17891800
申请日：2022-08-19
发明人： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC分类号： H04N19/103 , H04N19/119 , H04N19/129 , H04N19/157 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/70
CPC分类号： H04N19/129 , H04N19/103 , H04N19/119 , H04N19/157 , H04N19/172 , H04N19/174 , H04N19/1883 , H04N19/70
摘要： Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video picture that includes one or more tiles and one or more rectangular slices and a bitstream of the video according to a rule. The rule specifies that, for iteratively determining information about the one or more rectangular slices, a variable indicating a tile index is updated only for slices having indices that are smaller than a value equal to a number of slices in the video picture minus 1.
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公开(公告)号：US12088790B2
公开(公告)日：2024-09-10
申请号：US17887283
申请日：2022-08-12
发明人： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC分类号： H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/52 , H04N19/547 , H04N19/573 , H04N19/70 , H04N19/82
CPC分类号： H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/52 , H04N19/547 , H04N19/573 , H04N19/70 , H04N19/82
摘要： A method includes performing a conversion between a video comprising a video picture that includes one or more subpictures and a bitstream of the video according to a format rule. The format rule specifies that whether each of the one or more subpictures in the video picture includes a single slice is determined based on a constraint flag.
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公开(公告)号：US11991396B1
公开(公告)日：2024-05-21
申请号：US17965590
申请日：2022-10-13
发明人： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC分类号： H04N19/70 , H04N19/00 , H04N19/169 , H04N19/174 , H04N19/186
CPC分类号： H04N19/70 , H04N19/174 , H04N19/186 , H04N19/188
摘要： Methods, systems, apparatus for video processing are described. The processing may include encoding, decoding or transcoding. One example video processing method includes performing a conversion between a video including one or more pictures and a bitstream of the video according to a format rule. The format rule specifies to include, in a general constrain syntax structure, a syntax element indicating whether each picture includes only one slice, and whether a picture header syntax structure is present in a slice header.
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公开(公告)号：US20240146927A1
公开(公告)日：2024-05-02
申请号：US18520436
申请日：2023-11-27
发明人： Kai ZHANG , Li Zhang , Ye-Kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC分类号： H04N19/129 , H04N19/103 , H04N19/119 , H04N19/157 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/70
CPC分类号： H04N19/129 , H04N19/103 , H04N19/119 , H04N19/157 , H04N19/172 , H04N19/174 , H04N19/1883 , H04N19/70
摘要： Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video picture that includes one or more tiles and one or more rectangular slices and a bitstream of the video according to a rule. The rule specifies that, for iteratively determining information about the one or more rectangular slices, a variable indicating a tile index is updated only for slices having indices that are smaller than a value equal to a number of slices in the video picture minus 1.
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公开(公告)号：US11968367B2
公开(公告)日：2024-04-23
申请号：US18089672
申请日：2022-12-28
发明人： Kui Fan , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC分类号： H04N19/13 , H04N19/176 , H04N19/60 , H04N19/70 , H04N19/96
CPC分类号： H04N19/13 , H04N19/176 , H04N19/60 , H04N19/70 , H04N19/96
摘要： A video processing method is described. The method includes performing a conversion between a video region of a video and a coded representation of the video. The performing of the conversion includes configuring, based on a partition type of the video region, a context model for coding a first bin. The first bin and a second bin are included in a bin string corresponding to an index of a secondary transform tool. The index indicates an applicability of the secondary transform tool and/or a kernel information of the secondary transform tool. The secondary transform tool includes applying, during encoding, a forward secondary transform to an output of a forward primary transform applied to a residual of a video block prior to quantization, or applying, during decoding, an inverse secondary transform to an output of dequantization to the video block before applying an inverse primary transform.
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公开(公告)号：US11962814B2
公开(公告)日：2024-04-16
申请号：US17892866
申请日：2022-08-22
发明人： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC分类号： H04N19/96 , H04N19/119 , H04N19/129 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/70
CPC分类号： H04N19/96 , H04N19/119 , H04N19/129 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/70
摘要： A method includes performing a conversion between a video including a video picture including one or more tiles and a bitstream of the video. The video picture refers to a picture parameter set, and the picture parameter set conforms to a format rule specifying that the picture parameter set includes a list of column widths for N tile columns, where N is an integer. An (N−1)-th tile column exists in the video picture and the (N−1)-th tile column has a width that is equal to an (N−1)-th entry in a list of explicitly included tile column widths plus one number of coding tree blocks.
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公开(公告)号：US11825079B2
公开(公告)日：2023-11-21
申请号：US17886121
申请日：2022-08-11
发明人： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC分类号： H04N19/184 , H04N19/105 , H04N19/174 , H04N19/70 , H04N19/30 , H04N19/82 , H04N19/139 , H04N19/52 , H04N19/573 , H04N19/117 , H04N19/119 , H04N19/167 , H04N19/172 , H04N19/196 , H04N19/547 , H04N19/132
CPC分类号： H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/52 , H04N19/547 , H04N19/573 , H04N19/70 , H04N19/82
摘要： Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes determining an output sub-bitstream by extracting a sub-bitstream of one or more target subpictures from a bitstream of a video including video pictures. At least one of the video pictures includes one or more subpictures. The output sub-bitstream conforms to a format rule specifying that the one or more target subpictures is represented as a single subpicture in the output sub-bitstream.
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公开(公告)号：US11785210B2
公开(公告)日：2023-10-10
申请号：US17887294
申请日：2022-08-12
发明人： Zhipin Deng , Li Zhang , Kai Zhang , Ye-Kui Wang , Kui Fan
IPC分类号： H04N11/02 , H04N19/105 , H04N19/174 , H04N19/70 , H04N19/30 , H04N19/82 , H04N19/139 , H04N19/52 , H04N19/573 , H04N19/117 , H04N19/119 , H04N19/167 , H04N19/172 , H04N19/184 , H04N19/196 , H04N19/547 , H04N19/132
CPC分类号： H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/52 , H04N19/547 , H04N19/573 , H04N19/70 , H04N19/82
摘要： A method includes performing a conversion between a video including video pictures that include one or more subpictures and a bitstream of the video. The bitstream conforms to a format rule specifying that one or more syntax structures are constrained based on a constraint flag of a syntax element that includes general constraints information.
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公开(公告)号：US11716491B2
公开(公告)日：2023-08-01
申请号：US17696654
申请日：2022-03-16
IPC分类号： H04N11/02 , H04N19/96 , H04N19/119 , H04N19/146 , H04N19/176 , H04N19/436 , H04N19/132 , H04N19/186 , H04N19/30 , H04N19/70
CPC分类号： H04N19/96 , H04N19/119 , H04N19/132 , H04N19/146 , H04N19/176 , H04N19/186 , H04N19/30 , H04N19/436 , H04N19/70
摘要： Methods, systems, and devices for luma mapping with chroma scaling for video and image coding are disclosed. An example method of video processing includes performing, for a current region comprising a luma block, a first chroma block, and a second chroma block, a conversion between the current region of a video and a bitstream representation of the video according to a rule that specifies an order in which, during decoding, the first chroma block and the second chroma block are processed based on mapped sample values of the luma block.
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公开(公告)号：US20230099528A1
公开(公告)日：2023-03-30
申请号：US17891800
申请日：2022-08-19
发明人： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC分类号： H04N19/129 , H04N19/172 , H04N19/169 , H04N19/157 , H04N19/70 , H04N19/174 , H04N19/119 , H04N19/103
摘要： Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video picture that includes one or more tiles and one or more rectangular slices and a bitstream of the video according to a rule. The rule specifies that, for iteratively determining information about the one or more rectangular slices, a variable indicating a tile index is updated only for slices having indices that are smaller than a value equal to a number of slices in the video picture minus 1.
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