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公开(公告)号：US11770563B2
公开(公告)日：2023-09-26
申请号：US17949938
申请日：2022-09-21
Inventor： Ye-kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/70 , H04N19/105 , H04N19/187 , H04N19/96 , H04N19/172 , H04N19/46
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 multiple syntax elements are used to specify usage of a reference picture resampling tool.
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公开(公告)号：US20230128218A1
公开(公告)日：2023-04-27
申请号：US18085988
申请日：2022-12-21
Inventor： Zhipin Deng , Ye-kui Wang , Li Zhang
IPC: H04N19/70 , H04N19/176 , H04N19/172
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 the current picture is a recovery point picture in response to the current picture being a Gradual Decoding Refresh (GDR) picture with a recovery Picture Order Count (POC) value of 0. The recovery POC count specifies a recovery point of decoded pictures in an output order.
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公开(公告)号：US20230097856A1
公开(公告)日：2023-03-30
申请号：US18074887
申请日：2022-12-05
Inventor： Zhipin Deng , Li Zhang , Ye-kui Wang , Kai Zhang
IPC: H04N19/70 , H04N19/174 , H04N19/105
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are descrined. 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：US20230071429A1
公开(公告)日：2023-03-09
申请号：US17897998
申请日：2022-08-29
Inventor： Ye-kui Wang , Zhipin Deng , Li Zhang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/46 , H04N19/169 , H04N19/174
Abstract: A video processing method includes performing a conversion between a video including one or more pictures and a bitstream of the video. The bitstream conforms to a format rule specifying that one or more syntax elements indicative of coding information are selectively included in a picture parameter set of the bitstream responsive to whether it is indicated that each picture referring to the picture parameter set includes a single slice.
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公开(公告)号：US20230027555A1
公开(公告)日：2023-01-26
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: H04N19/174 , H04N19/70 , H04N19/172 , H04N19/119 , H04N19/129 , H04N19/176 , H04N19/96
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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Patent Agency Ranking
公开(公告)号：US20230023220A1
公开(公告)日：2023-01-26
申请号：US17950040
申请日：2022-09-21
Inventor： Ye-kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/70 , H04N19/96 , H04N19/105 , H04N19/187
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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公开(公告)号：US20230009491A1
公开(公告)日：2023-01-12
申请号：US17887294
申请日：2022-08-12
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC: H04N19/70 , H04N19/196 , H04N19/174 , H04N19/139 , H04N19/132
Abstract: A method includes performing a conversion between a video including video pictures that include one or more subpictures and a bitstream of the video. The bitstream conforms to a format rule specifying that one or more syntax structures are constrained based on a constraint flag of a syntax element that includes general constraints information.
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公开(公告)号：US20220400256A1
公开(公告)日：2022-12-15
申请号：US17886121
申请日：2022-08-11
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC: H04N19/117 , H04N19/70 , H04N19/196 , H04N19/184 , H04N19/172 , H04N19/82 , H04N19/119 , H04N19/167
Abstract: Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes determining an output sub-bitstream by extracting a sub-bitstream of one or more target subpictures from a bitstream of a video including video pictures. At least one of the video pictures includes one or more subpictures. The output sub-bitstream conforms to a format rule specifying that the one or more target subpictures is represented as a single subpicture in the output sub-bitstream.
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公开(公告)号：US20220394304A1
公开(公告)日：2022-12-08
申请号：US17887275
申请日：2022-08-12
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
Abstract: Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes performing a conversion between a video including a video picture that includes one or more subpictures and a bitstream of the video. The bitstream conforms to a format rule specifying that a first syntax element indicating whether an operation is performed across a boundary of a subpicture in the coded layer video sequence is selectively included responsive to a number of subpictures in the video picture.
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公开(公告)号：US20220394250A1
公开(公告)日：2022-12-08
申请号：US17888227
申请日：2022-08-15
Inventor： Kai Zhang , Li Zhang , Yang Wang , Ye-kui Wang , Zhipin Deng , Jizheng Xu , Hongbin Liu
IPC: H04N19/117 , H04N19/82 , H04N19/172 , H04N19/70
Abstract: A method includes performing a conversion between a video comprising a video unit and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a first syntax element indicating whether an in-loop filtering operation is performed across tile boundaries is selectively included in the bitstream based on whether or how the video unit is partitioned into tiles.
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