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171.发明授权公开(公告)号：US11838537B2
公开(公告)日：2023-12-05
申请号：US17230128
申请日：2021-04-14
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/52 , H04N19/176 , H04N19/184 , H04N19/105 , H04N19/159 , H04N19/513 , H04N19/56 , H04N19/137 , H04N19/30
CPC classification number: H04N19/52 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/30 , H04N19/513 , H04N19/56
Abstract: Devices, systems and methods for the simplification of sub-block motion candidate lists for video coding are described. In a representative aspect, a method for video processing includes determining, during a conversion between a current block of a video and a bitstream representation of the video, a temporal motion vector prediction candidate based on a temporal neighboring block of the current block. The temporal neighboring block is identified based on motion information of a spatial neighboring block selected from one or more spatial neighboring blocks that are different from at least one spatial neighboring block used in a merge list construction process of a video block. The method also includes performing the conversion based on the temporal motion vector prediction candidate.
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公开(公告)号：US11831894B2
公开(公告)日：2023-11-28
申请号：US17845536
申请日：2022-06-21
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/105 , H04N19/46 , H04N19/70 , H04N19/187
CPC classification number: H04N19/70 , H04N19/105 , H04N19/187 , H04N19/46
Abstract: A method of video processing includes performing a conversion between a video comprising a plurality of video layers and a bitstream of the video, wherein the bitstream comprises a plurality of output layer sets (OLSs), each of which comprises one or more of the plurality of video layers, and the bitstream conforms to a format rule, wherein the format rule specifies that, for a layer i, where i is an integer, the bitstream includes a set of first syntax element indicative of a first variable indicating whether the layer i is included in at least one of the plurality of OLSs.
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公开(公告)号：US11831876B2
公开(公告)日：2023-11-28
申请号：US17362341
申请日：2021-06-29
Inventor： Jizheng Xu , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/132 , H04N19/176 , H04N19/423 , H04N19/96
CPC classification number: H04N19/132 , H04N19/176 , H04N19/423 , H04N19/96
Abstract: A method of visual media processing includes determining, for a conversion between a current video block of visual media data and a bitstream representation of the current video block, a buffer that stores reference samples for prediction in an intra block copy mode; for a sample spatially located at location of the current video block relative to an upper-left position of a coding tree unit including the current video block and having a block vector, computing a corresponding reference in the buffer at a reference location, wherein the reference location is determined using the block vector and the location; and upon determining that the reference location lies outside the buffer, re-computing the reference location based at least in part on a location of the current video block relative to the coding tree unit including the current video block.
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公开(公告)号：US20230379478A1
公开(公告)日：2023-11-23
申请号：US18366339
申请日：2023-08-07
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/176 , H04N19/146 , H04N19/184 , H04N19/567 , H04N19/109
CPC classification number: H04N19/176 , H04N19/146 , H04N19/184 , H04N19/567 , H04N19/109
Abstract: A video processing method including inserting motion candidates in a first motion candidate list of a video region of a first video block using a list derivation rule, where the video region has a geometry shape that is a non-square and non-rectangular shape, and the first video block is coded with a geometry partition mode; and performing a conversion between the first video block and a bitstream of the first video block using the first motion candidate list.
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公开(公告)号：US11825105B2
公开(公告)日：2023-11-21
申请号：US18076886
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 including one or more pictures including one or more slices and a bitstream of the video, wherein the bitstream is organized into a plurality of access units (AUs), AU 0 to AU n, based on a format rule, where n is a positive integer, wherein the format rule specifies a relationship between removal times of each of the plurality of AUs from a coded picture buffer (CPB) during decoding and a number of slices in the each of the plurality of AUs.
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Patent Agency Ranking
公开(公告)号：US11825102B2
公开(公告)日：2023-11-21
申请号：US17992176
申请日：2022-11-22
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/169 , H04N19/172 , H04N19/31 , H04N19/70
CPC classification number: H04N19/188 , 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：US11818381B2
公开(公告)日：2023-11-14
申请号：US17990945
申请日：2022-11-21
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/46 , H04N19/105 , H04N19/172 , H04N19/70 , H04N19/169 , H04N19/423
CPC classification number: H04N19/46 , H04N19/105 , H04N19/172 , H04N19/188 , H04N19/423 , H04N19/70
Abstract: Methods, systems and devices for signaling picture information in access units in video bitstream processing are disclosed. An example method of video processing includes performing a conversion between a video comprising one or more pictures and a bitstream of the video, wherein the bitstream conforms to a format rule, wherein the format rule specifies that a flag and a syntax element, when included in the bitstream, are access unit (AU) specific, and wherein the flag indicates, in response to a current AU not being a first AU in the bitstream in a decoding order, whether a nominal coded picture buffer (CPB) removal time of the current AU is determined relative to (a) a nominal CPB removal time of a previous AU associated with a buffering period supplemental enhancement information (SEI) message, or (b) a nominal CPB removal time of the current AU.
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公开(公告)号：US11818337B2
公开(公告)日：2023-11-14
申请号：US17944870
申请日：2022-09-14
Applicant: Bytedance Inc.
Inventor： Ye-kui Wang
IPC: H04N19/105 , H04N19/109 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/169 , H04N19/31 , H04N19/503 , H04N19/46
CPC classification number: H04N19/105 , H04N19/109 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/188 , H04N19/31 , H04N19/46 , H04N19/503
Abstract: A video processing method includes performing a conversion between a video having one or more video layers including one or more video pictures and a bitstream of the video according to a rule. The rule specifies a condition under which no picture that has been generated by a decoding process for generating an unavailable reference picture is referred to by an active entry in a reference picture list of a current slice of a current picture.
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公开(公告)号：US11812067B2
公开(公告)日：2023-11-07
申请号：US17892858
申请日：2022-08-22
Inventor： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC: H04N19/96 , H04N19/184 , H04N19/70 , H04N19/174 , H04N19/119 , H04N19/129 , H04N19/172 , H04N19/176
CPC classification number: H04N19/96 , H04N19/119 , H04N19/129 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/70
Abstract: A method includes performing a conversion between a video that includes at least a video tile and a bitstream of the video according to a rule. The rule specifies that a height of a slice in the video tile in units of coding tree units is derived based on a value of a first syntax element in the bitstream indicating a number of explicitly provided slice heights for slices in the video tile that includes the slice.
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公开(公告)号：US11812064B2
公开(公告)日：2023-11-07
申请号：US17965325
申请日：2022-10-13
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Jizheng Xu , Li Zhang , Hsiao Chiang Chuang
IPC: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
CPC classification number: H04N19/70 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: Methods, systems, and devices for performing entropy coding for a palette escape symbol in palette mode coding and decoding are described. An example method for video processing includes performing a conversion between a video having one or more video regions including a current video block and a bitstream representation of the video, wherein the bitstream representation conforms to a format rule that the current video block is coded using a palette mode coding tool, wherein a binarization of an escape symbol for the current video block uses an exponential-Golomb (EG) code of order K, wherein K is a non-negative integer that is unequal to three, and wherein the palette mode coding tool represents the current video block using a palette of representative color values and wherein the escape symbol is used for a sample of the current video block coded without using the representative color values.
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