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公开(公告)号：US20220394244A1
公开(公告)日：2022-12-08
申请号：US17886104
申请日：2022-08-11
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC: H04N19/105 , H04N19/70 , H04N19/52 , H04N19/174 , H04N19/139 , H04N19/573
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 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：US20220377353A1
公开(公告)日：2022-11-24
申请号：US17861728
申请日：2022-07-11
Inventor： Kai Zhang , Zhipin Deng , Hongbin Liu , Li Zhang , Jizheng Xu , Ye-kui Wang
IPC: H04N19/186 , H04N19/176 , H04N19/159 , H04N19/132 , H04N19/70 , H04N19/167 , H04N19/169
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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公开(公告)号：US12284347B2
公开(公告)日：2025-04-22
申请号：US18323149
申请日：2023-05-24
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Kai Zhang , Ye-kui Wang , Yue Wang
IPC: H04N19/00 , H04N19/12 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/60 , H04N19/85
Abstract: A method for implementing an adaptive colour transform (ACT) mode during image/video encoding and decoding includes performing a conversion between a current video block of a video and a bitstream of the video, wherein the current video block is coded using the ACT mode, wherein the conversion includes applying an inverse ACT transform on the current video block according to a rule, and wherein the rule specifies that a clipping operation, based on a bit depth of the current video block, is applied to an input of the inverse ACT transform.
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公开(公告)号：US12238276B2
公开(公告)日：2025-02-25
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：US12095995B2
公开(公告)日：2024-09-17
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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Patent Agency Ranking
公开(公告)号：US12088790B2
公开(公告)日：2024-09-10
申请号：US17887283
申请日：2022-08-12
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC: 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 classification number: 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
Abstract: 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：US12015795B2
公开(公告)日：2024-06-18
申请号：US17849293
申请日：2022-06-24
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Zhipin Deng , Jizheng Xu , Ye-kui Wang
IPC: H04N11/02 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/70
CPC classification number: H04N19/46 , H04N19/174 , H04N19/176 , H04N19/70
Abstract: Devices, systems and methods related to digital video coding, and specifically, to signaling of slice types in video picture headers are described. One example method of video processing includes performing a conversion between a video including one or more video pictures including one or more slices and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that for a video picture of the one or more video pictures having all slices coded as I slices, P slice and B slice related syntax elements are omitted from a picture header for the video picture.
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公开(公告)号：US20240179350A1
公开(公告)日：2024-05-30
申请号：US18526640
申请日：2023-12-01
Inventor： Ye-kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/70 , H04N19/105 , H04N19/172 , H04N19/187 , H04N19/46 , H04N19/96
CPC classification number: H04N19/70 , H04N19/105 , H04N19/172 , H04N19/187 , H04N19/46 , H04N19/96
Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a subpicture in a video picture of a video and a bitstream of the video according to a rule. The rule specifies that, in in case a subpicture is treated as a video picture for the conversion, a cross-layer alignment restriction is applied to less than all of the multiple layers including a current layer that includes the subpicture and a subset of layers associated with the current layer.
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公开(公告)号：US11991397B2
公开(公告)日：2024-05-21
申请号：US18071335
申请日：2022-11-29
Inventor： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/169 , H04N19/176 , H04N19/186
CPC classification number: H04N19/70 , H04N19/176 , H04N19/186 , H04N19/1883
Abstract: Methods, systems and apparatus for video processing are described. One example video processing method includes performing a conversion between a video comprising a video block and a bitstream of the video according to a rule, wherein the video block is a coding tree node that includes one or more coding units, and wherein the rule specifies that a coded information of the video block is indicative of whether a coding mode is enabled for the one or more coding units of the video block.
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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
Inventor： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC: H04N19/70 , H04N19/00 , H04N19/169 , H04N19/174 , H04N19/186
CPC classification number: H04N19/70 , H04N19/174 , H04N19/186 , H04N19/188
Abstract: 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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