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公开(公告)号:US20230007247A1
公开(公告)日:2023-01-05
申请号:US17893481
申请日:2022-08-23
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/119 , H04N19/172 , H04N19/184 , H04N19/176 , H04N19/174 , H04N19/96
Abstract: A method includes performing a conversion between a video including one or more video pictures and a bitstream of the video, wherein each video picture includes one or more tiles that include one or more tile columns, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a tile column index is derived for each coding tree unit (CTU) column of a tile of a video picture.
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公开(公告)号:US20220417562A1
公开(公告)日:2022-12-29
申请号:US17893500
申请日:2022-08-23
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/174 , H04N19/134
Abstract: A method includes performing a conversion between a video including at least one video picture and a bitstream of the video according to a rule, wherein the at least one video picture includes one or more slices and one or more subpictures, and wherein the rule specifies that an order of slice indices of the one or more slices in the at least one video picture is indicated responsive to a syntax element associated with the at least one picture indicative of whether a single slice is included per subpicture of the at least one video picture.
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公开(公告)号:US20220394306A1
公开(公告)日:2022-12-08
申请号:US17888238
申请日:2022-08-15
Inventor: Kai Zhang , Li Zhang , Yang Wang , Ye-kui Wang , Zhipin Deng , Jizheng Xu , Hongbin Liu
IPC: H04N19/70 , H04N19/46 , H04N19/186 , H04N19/174
Abstract: A method includes performing a conversion between a video unit of a video and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a syntax element indicating whether an in-loop filtering operation is performed across slice boundaries is selectively included in the bitstream based on whether or how the video unit is partitioned into slices.
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公开(公告)号:US20220394282A1
公开(公告)日:2022-12-08
申请号:US17882359
申请日:2022-08-05
Inventor: Jizheng Xu , Li Zhang , Ye-kui Wang , Kai Zhang , Weijia Zhu , Yue Wang , Yang Wang , Hongbin Liu
IPC: H04N19/186 , H04N19/96 , H04N19/132 , H04N19/176 , H04N19/159
Abstract: Video processing methods, systems and appratrus are described. One example method includes performing a conversion between a video block of a video and a bitstream of the video using a palette mode in which samples of the video block are represented using a palette of representive color values. A size of the palette of the video block is determined based on whether a local dual tree is applied for the conversion.
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公开(公告)号:US20220394243A1
公开(公告)日:2022-12-08
申请号:US17886084
申请日:2022-08-11
Inventor: Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC: H04N19/105 , H04N19/174 , H04N19/70
Abstract: 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:US20220377384A1
公开(公告)日:2022-11-24
申请号:US17860588
申请日:2022-07-08
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/82 , H04N19/169 , H04N19/187 , H04N19/46
Abstract: A method of video processing includes performing a conversion between a video and a bitstream of the video according to a rule, wherein the rule specifies that a sub-bitstream extraction process is implemented to generate a sub-bitstream for decoding, wherein the sub-bitstream extraction process is configured to extract, from the bitstream, a sub-bitstream with a target highest temporal identifier, and wherein, the rule specifies that, during the extracting, upon removing a video coding layer (VCL) network abstraction layer (NAL) unit, filler data units and filler supplemental enhancement information (SEI) messages in SEI NAL units that are associated with the VCL NAL unit are also removed.
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公开(公告)号:US20220377381A1
公开(公告)日:2022-11-24
申请号:US17859826
申请日:2022-07-07
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/159 , H04N19/174 , H04N19/184
Abstract: A method of video processing includes performing a conversion between a video including a picture and a bitstream of the video, wherein the bitstream conforms to a format rule, wherein the format rule specifies that an indication of whether a first flag is signalled at a beginning of a picture header associated with the picture, wherein the first flag is indicative of whether the picture is an intra random access point (IRAP) picture or a gradual decoding refresh (GDR) picture.
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公开(公告)号:US20220377332A1
公开(公告)日:2022-11-24
申请号:US17810187
申请日:2022-06-30
Applicant: Bytedance Inc.
Inventor: Weijia Zhu , Li Zhang , Jizheng Xu , Kai Zhang , Ye-kui Wang
IPC: H04N19/12 , H04N19/186 , H04N19/70 , H04N19/184 , H04N19/132
Abstract: A method of video processing includes performing a conversion between a video unit of a video and a bitstream of the video according to a rule, wherein the rule specifies whether the bitstream includes at least one of a control flag of a chroma block-based delta pulse code modulation (BDPCM) mode, a palette mode, or an adaptive color transform (ACT) mode is based on a value of a chroma array type of the video.
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