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公开(公告)号：US20230080061A1
公开(公告)日：2023-03-16
申请号：US17992192
申请日：2022-11-22
Inventor： Ye-kui Wang , Zhipin Deng , Kai Zhang , Li Zhang
IPC: H04N19/172 , H04N19/70 , H04N19/169 , H04N19/184 , H04N19/186 , H04N19/96
Abstract: Embodiments for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video comprising one or more video pictures comprising one or more subpictures and a bitstream of the video, wherein the conversion conforms to a rule that specifies that one or more parameters for a scaling window applicable to a subpicture are determined from one or more syntax elements during a subpicture sub-bitstream extraction process.
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公开(公告)号：US20230046629A1
公开(公告)日：2023-02-16
申请号：US17897943
申请日：2022-08-29
Inventor： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC: H04N19/117 , H04N19/70 , H04N19/196 , H04N19/169
Abstract: Methods, systems, and 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, wherein the format rule specifies that values of one or more general constraint flags at a first level in the bitstream control occurrence of one or more syntax elements at a sequence parameter set (SPS) level or a picture header (PH) level or a slice header (SH) level.
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公开(公告)号：US20230041262A1
公开(公告)日：2023-02-09
申请号：US17955719
申请日：2022-09-29
Inventor： Ye-kui Wang , Weijia Zhu , Li Zhang , Zhipin Deng
IPC: H04N19/105 , H04N19/169 , H04N19/176 , H04N19/46
Abstract: Methods and apparatus for video processing are disclosed. The processing may include video encoding, video decoding, or video transcoding. One example method includes performing a conversion between a current block of a video and a bitstream of the video. The bitstream conforms to a rule that specifies that a context index offset is used for including a first sign flag of a first coefficient in the bitstream. The rule specifies that a value of the context index offset is based on whether a first coding mode is applied on the current block in the bitstream.
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公开(公告)号：US20230008778A1
公开(公告)日：2023-01-12
申请号：US17897835
申请日：2022-08-29
Inventor： Ye-kui Wang , Zhipin Deng , Li Zhang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/46 , H04N19/105 , H04N19/174
Abstract: A video processing method is provided to include performing a conversion between a video including a plurality of pictures each including at least one slice and a bitstream of the video, wherein the bitstream conforms to a format rule; wherein the format rule specifies that a first flag in the bitstream indicates whether a picture header syntax structure of a picture is included in a slice header of a slice of the picture; and wherein the format rule specifies that, responsive to any of six flags in a picture parameter set associated with the picture is equal to 1, the first flag is equal to 0.
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公开(公告)号：US20220400293A1
公开(公告)日：2022-12-15
申请号：US17882375
申请日：2022-08-05
Inventor： Jizheng Xu , Li Zhang , Ye-kui Wang , Kai Zhang , Weijia Zhu , Yue Wang
IPC: H04N19/86 , H04N19/117 , H04N19/186 , H04N19/196 , H04N19/70 , H04N19/172
Abstract: A 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 element identifying a deblocking offset for a chroma component of the video is included in a video region level is determined based on a colour format of the video.
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Patent Agency Ranking
公开(公告)号：US12256107B2
公开(公告)日：2025-03-18
申请号：US18516493
申请日：2023-11-21
Inventor： Zhipin Deng , Li Zhang , Ye-kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/117 , H04N19/169 , H04N19/186
Abstract: 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 constraints on values of one or more first syntax elements in an adaptation parameter set are defined based on semantics of second syntax elements in a picture header and/or a slice header when a picture or a slice refers to the adaptation parameter set.
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公开(公告)号：US12063371B2
公开(公告)日：2024-08-13
申请号：US17992246
申请日：2022-11-22
Inventor： Ye-kui Wang , Zhipin Deng , Kai Zhang , Li Zhang
IPC: H04N19/169 , H04N19/105 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/186 , H04N19/46 , H04N19/70 , H04N19/96
CPC classification number: H04N19/172 , H04N19/105 , H04N19/174 , H04N19/184 , H04N19/186 , H04N19/188 , H04N19/46 , H04N19/70 , H04N19/96
Abstract: Embodiments for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video having one or more layers having one or more video pictures having one or more subpictures and a bitstream of the video according to a rule, wherein the rule defines network abstraction layer (NAL) units to be extracted from a bitstream during a sub-bitstream extraction process to output a sub-bitstream, wherein the rule further specifies that one or more inputs to the sub-bitstream extraction process include a target output layer set (OLS) index (targetOlsIdx) that identifies an OLS index of a target OLS and is equal to an index to a list of OLSs specified by a video parameter set, and wherein the one or more inputs satisfy a set of conditions.
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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
Inventor： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC: H04N19/103 , H04N19/119 , H04N19/129 , H04N19/157 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/70
CPC classification number: H04N19/129 , H04N19/103 , H04N19/119 , H04N19/157 , H04N19/172 , H04N19/174 , H04N19/1883 , H04N19/70
Abstract: 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
Inventor： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC: 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 classification number: 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
Abstract: 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：US20240107036A1
公开(公告)日：2024-03-28
申请号：US18508721
申请日：2023-11-14
Inventor： Kai Zhang , Zhipin Deng , Hongbin Liu , Li Zhang , Jizheng Xu , Ye-kui Wang
IPC: H04N19/186 , H04N19/132 , H04N19/159 , H04N19/167 , H04N19/169 , H04N19/176 , H04N19/70
CPC classification number: H04N19/186 , H04N19/132 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/1883 , H04N19/70
Abstract: A method of video processing is provided that includes performing a conversion between a block of a video and a bitstream of the video. The bitstream conforms to a formatting rule specifying that a size of a merge estimation region (MER) is indicated in the bitstream and the size of the MER is based on a dimension of a video unit. The MER comprises a region used for deriving a motion candidate for the conversion.
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