-
公开(公告)号：US20230080321A1
公开(公告)日：2023-03-16
申请号：US17701224
申请日：2022-03-22
发明人： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC分类号： H04N19/132 , H04N19/105 , H04N19/117 , H04N19/82 , H04N19/176
摘要： An example method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, that one or more samples of the video outside the current block are unavailable for a coding process of the conversion. The coding process comprises an adaptive loop filter (ALF) coding process. The method also includes performing, based on the determining, the conversion by using padded samples for the one or more samples of the video. The padded samples are generated by checking for availability of samples in an order.
-
公开(公告)号：US20230007261A1
公开(公告)日：2023-01-05
申请号：US17470095
申请日：2021-09-09
发明人： Weijia ZHU , Jizheng XU , Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC分类号： H04N19/132 , H04N19/105 , H04N19/159 , H04N19/70 , H04N19/46 , H04N19/186 , H04N19/176
摘要： A method of visual media processing video, includes determining that palette mode is to be used for processing a first portion of a video block and intra block copy (IBC) mode is to be used for processing a second portion of the video block, and performing further processing of the first portion of the video block using the palette mode and the second portion of the video using the IBC mode, wherein indications of the first portion of the video block processed using the palette mode and indications of the second portion of the video block processed using the IBC mode are included in a palette index identifying the first portion of the video block and the second portion of the video block.
-
公开(公告)号：US20220286674A1
公开(公告)日：2022-09-08
申请号：US17824386
申请日：2022-05-25
IPC分类号： H04N19/117 , H04N19/119 , H04N19/176 , H04N19/186
摘要： A method of video processing, including performing a conversion between a video block of a video component of a video and a bitstream of the video, where the video block includes sub-blocks, where a filtering tool is used during the conversion according to a rule, and where the rule specifies that the filtering tool is applied by using a single offset for all samples of each sub-block of the video block.
-
公开(公告)号：US20220272353A1
公开(公告)日：2022-08-25
申请号：US17713063
申请日：2022-04-04
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Jizheng XU , Yue WANG
IPC分类号： H04N19/137 , H04N19/132 , H04N19/186 , H04N19/176 , H04N19/70 , H04N19/46
摘要： An example method of video processing includes performing a conversion between a block of a chroma component of a video and a bitstream representation of the video using a partitioning mode coding tool in which a final prediction of the chroma block is determined by blending predictions of the chroma block using weights that are based on the partitions. During the conversion, the weights are determined based on a type of chroma sample locations in the chroma component of the block.
-
公开(公告)号：US20220272335A1
公开(公告)日：2022-08-25
申请号：US17735435
申请日：2022-05-03
发明人： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC分类号： H04N19/117 , H04N19/82 , H04N19/186
摘要： A method of video processing is described. The method includes determining, for a conversion between a current video unit of a video including one or more video blocks and a bitstream representation of the video, a padding process used for padding unavailable samples during application of a cross-component adaptive loop filtering (CC-ALF) tool to at least some video blocks of the current video unit according to a rule; and performing the conversion based on the determining, and wherein the rule specifies that the padding process is also used for padding unavailable samples during application of an adaptive loop filtering (ALF) tool to one or more video blocks of the current video unit.
-
公开(公告)号：US20220272330A1
公开(公告)日：2022-08-25
申请号：US17727486
申请日：2022-04-22
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Jizheng XU , Yue WANG
IPC分类号： H04N19/11 , H04N19/186 , H04N19/176 , H04N19/52 , H04N19/132
摘要： A method of video processing includes making a determination, fora conversion between a current video block of a video and a coded representation of the video, of an affine merge candidate selectively according to a rule; and performing the conversion according to the determination. The rule specifies how the affine merge candidate is calculated without use of a log 2(X) operation where X is equal to or less than zero. The affine merge candidate is a motion candidate derived from neighboring affine coded video blocks.
-
公开(公告)号：US20220264144A1
公开(公告)日：2022-08-18
申请号：US17729284
申请日：2022-04-26
发明人： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC分类号： H04N19/52 , H04N19/176 , H04N19/184 , H04N19/70
摘要： A method for video processing is provided. The method includes determining that a conversion between a current video block of a video and a coded representation of the current video block is based on a non-affine inter AMVR mode; and performing the conversion based on the determining, wherein the coded representation of the current video block is based on a context based coding, and wherein a context used for coding the current video block is modeled without using an affine AMVR mode information of a neighboring block during the conversion.
-
公开(公告)号：US20220264125A1
公开(公告)日：2022-08-18
申请号：US17732849
申请日：2022-04-29
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Yue WANG
IPC分类号： H04N19/186 , H04N19/119 , H04N19/55 , H04N19/176 , H04N19/52 , H04N19/136
摘要： Devices, systems and methods for sub-block based prediction are described. In a representative aspect, a method for video encoding includes partitioning, based on a first rule, a luma component of a block of video data into a first set of sub-blocks. The method also includes partitioning, based on a second rule, a first chroma component of the block of video data into a second set of sub-blocks. The first and the second set of sub-blocks include different numbers of sub-blocks. The method also includes performing a subsequent motion prediction based on the first and the second set of sub-blocks.
-
公开(公告)号：US20220256197A1
公开(公告)日：2022-08-11
申请号：US17718880
申请日：2022-04-12
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Jizheng XU , Yue WANG
IPC分类号： H04N19/70 , H04N19/159 , H04N19/169 , H04N19/174
摘要： An example method of video processing includes performing a conversion between a video including a video picture including one or more video units and a bitstream representation of the video. The bitstream representation conforms to a format rule that specifies that a first syntax element is included in a header of the video picture indicating allowed prediction types of at least some of the one or more video units in the video picture.
-
公开(公告)号：US20220248061A1
公开(公告)日：2022-08-04
申请号：US17717549
申请日：2022-04-11
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Yue WANG
IPC分类号： H04N19/70 , H04N19/174 , H04N19/132 , H04N19/463 , H04N19/139 , H04N19/105 , H04N19/176 , H04N19/52
摘要： A method of video processing are described. The method includes determining, for a conversion between a video region of a picture of a video and a coded representation of the video, enablement status of a coding tool used to represent the video region in the coded representation; and performing the conversion according to the determination; wherein a first flag is included in a picture header to indicate the enablement status of the coding tool for the picture.
-
-
-
-
-
-
-
-
-
搜索结果
401 条记录 (耗时 0.031 秒)
