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公开(公告)号：US12041237B2
公开(公告)日：2024-07-16
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：US11968402B2
公开(公告)日：2024-04-23
申请号：US17898051
申请日：2022-08-29
发明人： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC分类号： H04N19/70 , H04N19/105 , H04N19/107 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/196 , H04N19/30 , H04N19/61
CPC分类号： H04N19/70 , H04N19/105 , H04N19/107 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/188 , H04N19/196 , H04N19/30 , H04N19/61
摘要： Methods, systems, apparatus for video processing are described. A method for processing video includes performing a conversion between a video and a bitstream of the video according to a format rule, and wherein the format rule specifies whether a syntax element in a sequence parameter set (SPS) based on a value of a general constraint flag.
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公开(公告)号：US11870979B2
公开(公告)日：2024-01-09
申请号：US17886084
申请日：2022-08-11
发明人： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC分类号： H04N19/30 , H04N19/52 , H04N19/70 , H04N19/82 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/547 , H04N19/573
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 performing a conversion between a video comprising a video picture that includes a video slice and a bitstream of the video. The bitstream conforms to a format rule specifying that, in case a slice type of the video slice is type P and temporal motion vector prediction is enabled, usage of reference picture resampling (RPR) for a reference picture in a collocated reference picture list is disabled. The reference picture is indicated by a reference index of a collocated picture of the video slice used for the temporal motion vector prediction.
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公开(公告)号：US11838554B2
公开(公告)日：2023-12-05
申请号：US17898073
申请日：2022-08-29
发明人： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC分类号： H04N19/70 , H04N19/105 , H04N19/11 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/186 , H04N19/61 , H04N19/107 , H04N19/172 , H04N19/174 , H04N19/169 , H04N19/30 , H04N19/117 , H04N19/196
CPC分类号： H04N19/70 , H04N19/105 , H04N19/107 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/188 , H04N19/196 , H04N19/30 , H04N19/61
摘要： Methods, systems, apparatuses for video processing are described. A method for processing video includes performing a conversion between a video and a bitstream of the video according to a format rule, and wherein the format rule specifies to include, in a general constraint syntax structure associated with the video, one or more general constraint flags indicating whether corresponding syntax elements are included in a sequence parameter set (SPS) and/or a picture parameter set (PPS) and/or a picture header (PH) and/or a slice header (SH) or to constrain values of the syntax elements in the SPS and/or the PPS and/or the PH and/or the SH.
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公开(公告)号：US11812067B2
公开(公告)日：2023-11-07
申请号：US17892858
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 , H04N19/184 , H04N19/70 , H04N19/174 , H04N19/119 , H04N19/129 , H04N19/172 , H04N19/176
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 that includes at least a video tile and a bitstream of the video according to a rule. The rule specifies that a height of a slice in the video tile in units of coding tree units is derived based on a value of a first syntax element in the bitstream indicating a number of explicitly provided slice heights for slices in the video tile that includes the slice.
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公开(公告)号：US20230021488A1
公开(公告)日：2023-01-26
申请号：US17898051
申请日：2022-08-29
发明人： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC分类号： H04N19/70 , H04N19/174 , H04N19/172 , H04N19/105 , H04N19/107 , H04N19/186 , H04N19/169 , H04N19/30
摘要： Methods, systems, apparatus for video processing are described. A method for processing video includes performing a conversion between a video and a bitstream of the video according to a format rule, and wherein the format rule specifies whether a syntax element in a sequence parameter set (SPS) based on a value of a general constraint flag.
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公开(公告)号：US20220417565A1
公开(公告)日：2022-12-29
申请号：US17892858
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 , H04N19/184 , H04N19/70
摘要： A method includes performing a conversion between a video that includes at least a video tile and a bitstream of the video according to a rule. The rule specifies that a height of a slice in the video tile in units of coding tree units is derived based on a value of a first syntax element in the bitstream indicating a number of explicitly provided slice heights for slices in the video tile that includes the slice.
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公开(公告)号：US12010295B2
公开(公告)日：2024-06-11
申请号：US17886104
申请日：2022-08-11
发明人： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC分类号： H04N19/105 , 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： Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes performing a conversion between a video including a video picture that includes a video slice and a bitstream of the video. The bitstream conforms to a format rule specifying that a slice type of the video slice determines a manner by which certain information from a picture header for the video picture is inherited by a slice header of the video slice.
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公开(公告)号：US11991358B2
公开(公告)日：2024-05-21
申请号：US17994856
申请日：2022-11-28
IPC分类号： H04N19/12 , H04N19/124 , H04N19/129 , H04N19/176 , H04N19/18
CPC分类号： H04N19/12 , H04N19/124 , H04N19/129 , H04N19/176 , H04N19/18
摘要： Devices, systems and methods for digital video coding, which includes methods for transform design, are described. In a representative aspect, a method of video processing includes performing a conversion between a current video block of a video and a bitstream of the video based on a rule, wherein the rule specifies that a selection of a transform matrix set for performing a transform operation during the conversion is based on a low-frequency non-separable transform index indicated in the bitstream, wherein the rule specifies that the transform operation includes, during an encoding operation, coding the current video block into the bitstream by applying a forward transform on residual values of the current video block, or wherein the rule specifies that the transform operation includes, during a decoding operation, generating from the bitstream the current video block by applying an inverse transform to scaled coefficients indicated in the bitstream.
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公开(公告)号：US20240137571A1
公开(公告)日：2024-04-25
申请号：US18520226
申请日：2023-11-27
发明人： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC分类号： H04N19/70 , 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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