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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：US12231653B2
公开(公告)日：2025-02-18
申请号：US18517328
申请日：2023-11-22
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang , Li Zhang
IPC: H04N19/157 , H04N19/103 , H04N19/105 , H04N19/136 , H04N19/172 , H04N19/174 , H04N19/70
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a current picture of a video and a bitstream of the video according to a rule. The rule specifies that responsive to a picture being referred to by an inter-layer reference picture (ILRP) entry in a reference picture list of a slice of the current picture, the picture is allowed to have a gradual decoding refresh (GDR) type and a syntax element specifying a recovery point of the picture in an output order is 0.
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公开(公告)号：US12192493B2
公开(公告)日：2025-01-07
申请号：US18488692
申请日：2023-10-17
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/169 , H04N19/172 , H04N19/31 , H04N19/70
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a video including multiple layers and a bitstream of the video according to a rule, wherein the rule specifies that, in a first process of sub-bitstream extraction to output a first output sub-bitstream, the first output sub-bitstream is extracted without removing network abstraction layer (NAL) units of a particular type and having a particular NAL unit header identifier value, and wherein the particular type includes an access unit delimiter (AUD) NAL unit.
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公开(公告)号：US12126820B2
公开(公告)日：2024-10-22
申请号：US18077810
申请日：2022-12-08
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/184 , H04N19/136 , H04N19/169 , H04N19/30 , H04N19/433 , H04N19/46 , H04N19/70
CPC classification number: H04N19/184 , H04N19/136 , H04N19/188 , H04N19/30 , H04N19/433 , H04N19/46 , H04N19/70
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream includes one or more output layer sets comprising one or more video layers according to a format rule, wherein the format rule specifies that a non-scalable-nested supplemental enhancement information, SEI, message that includes information regarding hypothetical reference decoder, HRD, is applicable to all output layer sets that include same video layers as 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：US12075096B2
公开(公告)日：2024-08-27
申请号：US17990273
申请日：2022-11-18
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang , Li Zhang
IPC: H04N19/70 , H04N19/169 , H04N19/172 , H04N19/46
CPC classification number: H04N19/70 , H04N19/172 , H04N19/188 , H04N19/46
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a video and a bitstream of the video according to a rule. At least one of the one or more parameter sets of the bitstream includes a general syntax structure including timing and hypothetical reference decoder (HRD) parameters. The rule specifies that a first syntax flag is not included in the general syntax structure in response to (1) a second syntax flag specifying that network abstraction layer (NAL) HRD parameters are not present in the general syntax structure, and (2) a third syntax flag specifying that video coding layer (VCL) HRD parameters are not present in the general syntax structure, where the first syntax flag specifies that same picture-level timing information applies to all output layer sets in the bitstream.
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公开(公告)号：US12058380B2
公开(公告)日：2024-08-06
申请号：US17953937
申请日：2022-09-27
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang , Li Zhang
IPC: H04N19/70 , H04N19/159 , H04N19/169 , H04N19/172 , H04N19/46
CPC classification number: H04N19/70 , H04N19/159 , H04N19/172 , H04N19/188 , H04N19/46
Abstract: Methods and apparatus for video processing are described. The processing may include video encoding, video decoding, or video transcoding. An example video processing method includes performing a conversion between a video and a bitstream of the video including one or more output layer sets according to a format rule. At least one of the one or more output layer sets consists of a trick mode access representation including only intra random access points pictures or only intra-coded pictures. The format rule specifies whether or how level information for the trick mode representation is indicated in the bitstream.
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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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