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公开(公告)号：US11917211B2
公开(公告)日：2024-02-27
申请号：US17892746
申请日：2022-08-22
Inventor： Kai Zhang , Li Zhang , Ye-Kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC: H04N11/02 , 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: Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video including a video picture including a video tile including one or more slices and a bitstream of the video according to a rule. The rule specifies that a second slice in a tile that includes a first slice in a picture has a height that is represented in a unit of coding tree units. The first slice has a first slice index, and the second slice has a second slice index that is determined based on the first slice index and a number of explicitly provided slice heights in the video tile. The height of the second slice is determined based on the first slice index and the second slice index.
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公开(公告)号：US11917132B2
公开(公告)日：2024-02-27
申请号：US17945273
申请日：2022-09-15
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 comprising a current picture comprising a current slice and a bitstream of the video according to a rule. The rule specifies a condition under which a reference picture list for the current slice is disallowed to have an active entry that refers to a picture that precedes, in a decoding order or an output order, an intra random access point picture associated with the current picture.
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公开(公告)号：US11849150B2
公开(公告)日：2023-12-19
申请号：US17955856
申请日：2022-09-29
Applicant: Bytedance Inc.
Inventor： Li Zhang , Ye-Kui Wang
IPC: H04N19/70 , H04N19/184 , H04N19/186
CPC classification number: H04N19/70 , H04N19/184 , H04N19/186
Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a video picture of a video comprising one or more slices and a bitstream of the video picture according to a rule. The rule specifies that that whether a first syntax element indicating a usage of a coding tool is present at a first level is based on a syntax flag indicating whether a syntax structure of a second level is not present at the first level, wherein the second level is higher than the first level, and wherein the second level is the video picture level or higher than the video picture level.
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公开(公告)号：US20230345032A1
公开(公告)日：2023-10-26
申请号：US18343307
申请日：2023-06-28
Inventor： Ye-Kui Wang , Yang Wang , Li Zhang
IPC: H04N19/172 , H04N19/136 , H04N19/105 , H04N19/70 , H04N19/184 , H04N19/503 , H04N19/109
CPC classification number: H04N19/503 , H04N19/105 , H04N19/109 , H04N19/136 , H04N19/172 , H04N19/184 , H04N19/70
Abstract: A mechanism for processing video data is disclosed. An indication is signaled. The indication indicates whether a picture following a dependent random access point (DRAP) picture in decoding order and preceding the DRAP picture in output order is permitted to refer to a reference picture positioned prior to the DRAP picture in decoding order for inter prediction. A conversion is performed between a visual media data and a bitstream based on the indication.
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公开(公告)号：US20230345025A1
公开(公告)日：2023-10-26
申请号：US18339012
申请日：2023-06-21
Inventor： Ye-Kui Wang , Kai Zhang , Li Zhang , Yang Wang , Jizheng Xu , Zhipin Deng
Abstract: A mechanism for processing video data is disclosed. Video decoder initialization information is signaled between an encoder to a decoder. The video decoder initialization information contains a range of initialization parameters for a plurality of video units when the plurality of video units are coded according to a same video codec and a same profile. A conversion is performed between a visual media data and a visual media data file based on the range of initialization parameters.
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Patent Agency Ranking
公开(公告)号：US11750845B2
公开(公告)日：2023-09-05
申请号：US17962141
申请日：2022-10-07
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/46 , H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174
CPC classification number: H04N19/70 , H04N19/159 , H04N19/172 , 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 video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号：US20230262239A1
公开(公告)日：2023-08-17
申请号：US18306886
申请日：2023-04-25
Inventor： Ye-Kui Wang , Li Zhang , Haibin Yin , Lingyu Li
IPC: H04N19/30 , H04N19/70 , H04N19/172
CPC classification number: H04N19/30 , H04N19/70 , H04N19/172
Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data and a visual media data file. The visual media data file includes a versatile video coding (VVC) decoder configuration record and a plurality of pictures coded into one or more sublayers, wherein the VVC decoder configuration record comprises a number of the one or more sublayers and one or more VVC profile tier level (PTL) records for the one or more sublayers based on the number of the one or more sublayers.
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公开(公告)号：US20230232029A1
公开(公告)日：2023-07-20
申请号：US18190571
申请日：2023-03-27
Inventor： Ye-Kui Wang , Zhipin Deng
IPC: H04N19/46 , H04N19/169
CPC classification number: H04N19/46 , H04N19/188
Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream conforms to an order of a sub-bitstream extraction process that is defined by a rule that specifies (a) the sub-bitstream extraction process excludes an operation that removes all supplemental enhancement information (SEI) network abstraction layer (NAL) units, which satisfy a condition, from an output bitstream or (b) the order of the sub-bitstream extraction process includes replacing parameter sets with replacement parameter sets prior to removing, from an output bitstream, the SEI NAL units.
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公开(公告)号：US20230044750A1
公开(公告)日：2023-02-09
申请号：US17950411
申请日：2022-09-22
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/117 , H04N19/70 , H04N19/174
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 video including a picture including one or more slices and a bitstream of the video. The conversion conforms to a rule that specifies that whether a deblocking filter is applied to the one or more slices referring to a picture parameter set is based at least on a first syntax element included in the picture parameter set. The first syntax element indicates whether the deblocking filter is disabled for the picture.
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公开(公告)号：US20230042746A1
公开(公告)日：2023-02-09
申请号：US17950443
申请日：2022-09-22
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/105 , H04N19/176 , H04N19/159 , H04N19/52 , H04N19/463 , H04N19/139 , H04N19/186 , H04N19/132 , H04N19/80
Abstract: A method includes determining, for a conversion between a video block of a video and a bitstream of the video, a size of prediction block corresponding to the video block according to a rule. The method also includes performing the conversion based on the determining. The rule specifies that a first size of the prediction block is determined responsive to whether a prediction refinement using optical flow technique is used for coding the video block. The video block has a second size and is coded using an affine merge mode or an affine advanced motion vector prediction mode.
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