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151.
公开(公告)号:US20240129544A1
公开(公告)日:2024-04-18
申请号:US18531014
申请日:2023-12-06
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang
IPC: H04N19/70 , H04N19/132 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/30 , H04N19/423 , H04N19/593
CPC classification number: H04N19/70 , H04N19/132 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/30 , H04N19/423 , H04N19/593
Abstract: Methods and apparatus for video processing, including coding and decoding, are described. One example video processing method includes performing a conversion between a video having one or more video layers and a bitstream of the video according to a format rule, and wherein the format rule specifies that a value of a flag that indicates whether to remove pictures previously decoded and stored in a decoded picture buffer from the decoded picture buffer when decoding an access unit of a certain type is included in the bitstream.
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公开(公告)号:US20240129539A1
公开(公告)日:2024-04-18
申请号:US18516507
申请日:2023-11-21
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/119 , H04N19/134 , H04N19/136 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/96
CPC classification number: H04N19/70 , H04N19/119 , H04N19/134 , H04N19/136 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/1883 , H04N19/96
Abstract: A method includes making a determination, according to a rule, about whether a height of a subpicture of a video picture of a video is less than a height of a tile row of the video picture; and performing, using the determination, a conversion between the video and a bitstream of the video.
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公开(公告)号:US20240129538A1
公开(公告)日:2024-04-18
申请号:US18510127
申请日:2023-11-15
Inventor: Zhipin Deng , Li Zhang , Ye-kui Wang , Kai Zhang
IPC: H04N19/70 , H04N19/169 , H04N19/172
CPC classification number: H04N19/70 , H04N19/172 , 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 comprising one or more pictures comprising one or more slices and a bitstream of the video. The bitstream conforms to a predefined order between a position of a first network abstraction layer (NAL) unit in a picture unit carrying an adaptation parameter set information and a second NAL unit that is a last video coding layer (VCL) NAL unit in the picture unit.
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公开(公告)号:US11956476B2
公开(公告)日:2024-04-09
申请号:US17860687
申请日:2022-07-08
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/105 , H04N19/159 , H04N19/169 , H04N19/174 , H04N19/184 , H04N19/187 , H04N19/44 , H04N19/46 , H04N19/82 , H04N19/91 , H04N19/117
CPC classification number: H04N19/82 , H04N19/105 , H04N19/159 , H04N19/174 , H04N19/184 , H04N19/187 , H04N19/188 , H04N19/44 , H04N19/46 , H04N19/70 , H04N19/91 , H04N19/117
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 first syntax element, which indicates a number of parameters for an output layer set (OLS) hypothetical reference decoder (HRD) in a video parameter set (VPS) associated with the video, is less than a first predetermined threshold.
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公开(公告)号:US11956474B2
公开(公告)日:2024-04-09
申请号:US17992270
申请日:2022-11-22
Inventor: Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/169 , H04N19/174 , H04N19/186 , H04N19/46
CPC classification number: H04N19/70 , H04N19/174 , H04N19/186 , H04N19/188 , H04N19/46
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 and a bitstream of the video according to a rule, and wherein the rule specifies that a syntax element is included in a profile, tier, level information syntax structure to indicate whether one or more general constraint information syntax elements are included in a general constraint information syntax structure and/or whether the general constraint information syntax structure is included in the profile, tier, level information syntax structure.
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公开(公告)号:US20240107071A1
公开(公告)日:2024-03-28
申请号:US18523025
申请日:2023-11-29
Inventor: Zhipin Deng , Li Zhang , Ye-kui Wang , Kai Zhang
IPC: H04N19/70 , H04N19/105 , H04N19/174
CPC classification number: H04N19/70 , H04N19/105 , H04N19/174
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 a number of entries in a reference picture list of the current picture is greater than 0 in response to (1) one or more slices in the current picture being allowed to have a slice type other than an Intra (I) slice type, and (2) reference picture list (RPL) information being present in a picture header.
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公开(公告)号:US20240107067A1
公开(公告)日:2024-03-28
申请号:US18497568
申请日:2023-10-30
Inventor: Ye-kui Wang , Zhipin Deng , Li Zhang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/105 , H04N19/117 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/189 , H04N19/196 , H04N19/46 , H04N19/58 , H04N19/635 , H04N19/82 , H04N19/86
CPC classification number: H04N19/70 , H04N19/105 , H04N19/117 , H04N19/172 , H04N19/174 , H04N19/188 , H04N19/189 , H04N19/197 , H04N19/46 , H04N19/58 , H04N19/635 , H04N19/82 , H04N19/86 , H04N19/127
Abstract: A video processing method is provided to include performing a conversion between a video and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies a condition that controls whether or how one or more syntax elements related to picture order counts for a long term reference picture are included in a reference picture list syntax structure in the bitstream.
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公开(公告)号:US20240107047A1
公开(公告)日:2024-03-28
申请号:US18520297
申请日:2023-11-27
Applicant: Bytedance Inc.
Inventor: Ye-kui Wang , Li Zhang
IPC: H04N19/46 , H04N19/105 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/70
CPC classification number: H04N19/46 , H04N19/105 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/188 , H04N19/70
Abstract: A method includes performing a conversion between a current slice of a current picture 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 general constraint information syntax structure, which comprises one or more constraint flags indicating constraints on an explicit weighted prediction being enabled for slices of a set of pictures, is present.
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公开(公告)号:US20240107039A1
公开(公告)日:2024-03-28
申请号:US18525231
申请日:2023-11-30
Inventor: Ye-kui Wang , Zhipin Deng
IPC: H04N19/196 , H04N19/117 , H04N19/167 , H04N19/172 , H04N19/70 , H04N19/82
CPC classification number: H04N19/196 , H04N19/117 , H04N19/167 , H04N19/172 , H04N19/70 , H04N19/82
Abstract: Methods, apparatus, systems for performing video processing such as video encoding, video decoding or video transcoding are described. One example method of video processing includes performing a conversion between a video comprising one or more video layers and a bitstream of the video according to a rule. The rule specifies that responsive to a value of a first field in a sequence parameter set (SPS) that is referred to by a video layer, a second field in a video parameter set referred to by the SPS that is indicative of a maximum number of sublayers allowed in the bitstream is construed to be equal to a third field in the SPS. The third field is indicative of a maximum number of sublayers allowed in the video layer.
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公开(公告)号:US20240107037A1
公开(公告)日:2024-03-28
申请号:US18513020
申请日:2023-11-17
Inventor: Jizheng Xu , Li Zhang , Ye-kui Wang , Kai Zhang , Weijia Zhu , Yue Wang , Yang Wang , Hongbin Liu
IPC: H04N19/186 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/96
CPC classification number: H04N19/186 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/96
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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