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公开(公告)号：US20240098308A1
公开(公告)日：2024-03-21
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
CPC classification number: H04N19/70 , H04N19/117 , H04N19/186 , H04N19/188
Abstract: Systems, methods and apparatus for video processing are described. 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 referring to the adaptation parameter set.
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公开(公告)号：US20240098253A1
公开(公告)日：2024-03-21
申请号：US18517737
申请日：2023-11-22
Inventor： Ye-kui Wang , Weijia Zhu , Li Zhang , Zhipin Deng
IPC: H04N19/105 , H04N19/169 , H04N19/176 , H04N19/46
CPC classification number: H04N19/105 , H04N19/176 , H04N19/188 , 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：US11936865B2
公开(公告)日：2024-03-19
申请号：US17901270
申请日：2022-09-01
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang , Kai Zhang , Li Zhang
CPC classification number: H04N19/12 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/70
Abstract: Several techniques for video encoding and video decoding are described. A method for video processing includes performing a conversion between a video block of a video and a bitstream of the video, wherein the video block uses a low frequency non-separable transform for the conversion, wherein the bitstream conforms to a format rule that specifies that a syntax element is included at a syntax level for the bitstream, wherein the syntax element is indicative of whether use of a scaling matrix which is derived from a reference scaling list is enabled for the video block, and wherein the syntax level is a sequence level, a picture level, or a slice level.
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公开(公告)号：US20240089508A1
公开(公告)日：2024-03-14
申请号：US18514689
申请日：2023-11-20
Inventor： Ye-kui Wang , Zhipin Deng , Kai Zhang , Li Zhang
IPC: H04N19/70 , H04N19/105 , H04N19/119 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/186 , H04N19/30
CPC classification number: H04N19/70 , H04N19/105 , H04N19/119 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/186 , H04N19/30
Abstract: Video processing, including video coding, video decoding and video transcoding, is described. One example method includes performing a conversion between a video comprising a video picture and a bitstream of a video according to a rule, where the rule specifies that syntax elements indicate a first width and a first height of a scaling window for the video picture, and where the rule specifies that a range of permissible values for the syntax elements include values greater than or equal to two times a second width of the video picture and two times a second height of the video picture.
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公开(公告)号：US11930220B2
公开(公告)日：2024-03-12
申请号：US17950040
申请日：2022-09-21
Inventor： Ye-kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/46 , H04N19/105 , H04N19/172 , H04N19/187 , H04N19/70 , 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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Patent Agency Ranking
公开(公告)号：US20240080493A1
公开(公告)日：2024-03-07
申请号：US18510269
申请日：2023-11-15
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/70 , H04N19/169 , H04N19/30 , H04N19/44
CPC classification number: H04N19/70 , H04N19/188 , H04N19/30 , H04N19/44
Abstract: Devices, systems and methods for specifying the syntax and semantics of the decoding parameter set (DPS) are described. One example method of video processing includes determining, for a conversion between a video and a bitstream of the video, that each output layer set (OLS) in a coded video sequence (CVS) in the bitstream conforms to at least one profile-tier-level (PTL) syntax structure included in a data structure associated with decoding parameter semantics in the bitstream, and performing, based on the determining, the conversion, wherein the PTL syntax structure indicates a profile, a tier, and a level of the bitstream.
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公开(公告)号：US20240048771A1
公开(公告)日：2024-02-08
申请号：US18476823
申请日：2023-09-28
Applicant: Bytedance Inc.
Inventor： Li Zhang , Ye-kui Wang , Kai Zhang
IPC: H04N19/70 , H04N19/105 , H04N19/174 , H04N19/46
CPC classification number: H04N19/70 , H04N19/105 , H04N19/174 , H04N19/46
Abstract: Systems, methods and apparatus for video processing are described. 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 including one or more pictures and a bitstream of the video according to a format rule. The format rule specifies that a first syntax element that indicates whether motion vector difference for a particular reference picture list (RPL) is indicated is conditionally included in the bitstream based on (i) whether a second syntax element indicating whether an RPL information is included in a picture header and/or (ii) a number of reference pictures in the particular RPL in case that the RPL information is present in the picture header.
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公开(公告)号：US11889060B2
公开(公告)日：2024-01-30
申请号：US17969976
申请日：2022-10-20
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/159 , H04N19/174 , H04N19/169 , H04N19/105
CPC classification number: H04N19/105 , H04N19/159 , H04N19/174 , H04N19/188
Abstract: Methods and apparatus for processing of video are described. The processing may include video encoding, decoding, or transcoding. One example video processing method includes performing a conversion between a video including one or more pictures including one or more subpictures and a bitstream of the video. The bitstream conforms to a format rule that specifies that a subpicture cannot be a random access type of subpicture in response to the subpicture not being a leading subpicture of an intra random access point subpicture. The leading subpicture precedes the intra random access point subpicture in output order.
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公开(公告)号：US11856237B2
公开(公告)日：2023-12-26
申请号：US17962852
申请日：2022-10-10
Inventor： Zhipin Deng , Li Zhang , Ye-kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/117 , H04N19/186 , H04N19/169
CPC classification number: H04N19/70 , H04N19/117 , H04N19/186 , H04N19/188
Abstract: Systems, methods and apparatus for video processing are described. 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 if a picture or a slice referring to the adaptation parameter set.
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公开(公告)号：US11856212B2
公开(公告)日：2023-12-26
申请号：US18076897
申请日：2022-12-07
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/423 , H04N19/132 , H04N19/174 , H04N19/105 , H04N19/152
CPC classification number: H04N19/423 , H04N19/105 , H04N19/132 , H04N19/152 , H04N19/174
Abstract: Methods, systems and devices for implementing constraints used in video encoding and video decoding are described. An example method of video processing includes performing a conversion between a video comprising one or more pictures comprising one or more slices and a bitstream of the video. The conversion conforms to a rule, and the bitstream is organized into one or more access units. The rule specifies a constraint on a number of decoded pictures stored in a decoded picture buffer (DPB). Each decoded picture of the decoded pictures is (i) marked as used for reference, (ii) has a flag indicative of the decoded picture being output, and (iii) has an output time later than a decoding time of a current picture.
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