-
公开(公告)号：US11729382B2
公开(公告)日：2023-08-15
申请号：US17646048
申请日：2021-12-27
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/117 , H04N19/119 , H04N19/132 , H04N19/174 , H04N19/176 , H04N19/70 , H04N19/184 , H04N19/82
CPC classification number: H04N19/117 , H04N19/119 , H04N19/132 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/70 , H04N19/82
Abstract: Devices, systems and methods for temporal prediction of parameters in non-linear adaptive loop filtering are described. In an exemplary aspect, a method for visual media processing includes configuring, for a current video block, one or more parameters of a clipping operation that is part of a non-linear filtering operation; and performing, based on the one or more parameters, a conversion between the current video block and a bitstream representation of the current video block, wherein the one or more parameters is coded in accordance with a rule.
-
公开(公告)号：US11722703B2
公开(公告)日：2023-08-08
申请号：US17129029
申请日：2020-12-21
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Hsiao Chiang Chuang , Yue Wang
IPC: H04N19/96 , H04N19/119 , H04N19/13 , H04N19/132 , H04N19/176 , H04N19/513 , H04N19/186
CPC classification number: H04N19/96 , H04N19/119 , H04N19/13 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/513
Abstract: In a representative aspect, a method for processing pictures includes segmenting a picture into one or multiple picture segments, determining that a first block of a picture segment covers at least one region that is outside a border of the picture segment, wherein a size of the first block is M×N pixels, selecting a second block of size K×L pixels and where (K≤M and L
-
公开(公告)号：US20230239511A1
公开(公告)日：2023-07-27
申请号：US18192098
申请日：2023-03-29
Inventor： Ye-Kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/70 , H04N19/187 , H04N19/136
CPC classification number: H04N19/70 , H04N19/187 , H04N19/136
Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field included in the bitstream indicates whether the bitstream comprises one or more video layers that represent auxiliary information.
-
公开(公告)号：US20230231998A1
公开(公告)日：2023-07-20
申请号：US18174961
申请日：2023-02-27
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/117 , H04N19/176 , H04N19/98 , H04N19/96 , H04N19/13
CPC classification number: H04N19/117 , H04N19/176 , H04N19/98 , H04N19/96 , H04N19/13
Abstract: A method of video processing includes determining, for a conversion of a block of a video picture in a video and a bitstream representation of the video, gradients of a subset of samples in a region for a classification operation in a filtering process. The region has a dimension of M×N and the block has a dimension of K×L, M, N, K, L being positive integers. The block is located within the region. The method also includes performing the conversion based on the determining.
-
公开(公告)号：US20230231997A1
公开(公告)日：2023-07-20
申请号：US18173306
申请日：2023-02-23
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/117 , H04N19/132 , H04N19/174 , H04N19/96 , H04N19/169 , H04N19/70 , H04N19/82 , H04N19/176
CPC classification number: H04N19/117 , H04N19/132 , H04N19/174 , H04N19/96 , H04N19/1883 , H04N19/70 , H04N19/82 , H04N19/176
Abstract: A visual media processing method includes performing a conversion between a current video block of a visual media data and a bitstream representation of the current video block. The bitstream representation is configured according to a format rule that specifies that a syntax element is selectively included or excluded in the bitstream representation indicative of a maximum number of merge candidates for a coding tool, thereby indicating whether the coding tool is enabled or disabled for the conversion. The maximum number of merge candidates for the coding tool is zero or a positive number.
-
Patent Agency Ranking
公开(公告)号：US11706462B2
公开(公告)日：2023-07-18
申请号：US17716380
申请日：2022-04-08
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yue Wang
IPC: H04N19/82 , H04N19/174 , H04N19/117 , H04N19/176
CPC classification number: H04N19/82 , H04N19/117 , H04N19/174 , H04N19/176
Abstract: A method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video using a coding tool that accesses samples outside of the current block, that neighboring samples used for the conversion are unavailable. Samples that are located across a boundary of a video unit of the video are considered as unavailable samples. The method also includes performing, based on the determining, the conversion by padding samples in place of the neighboring samples that are unavailable. The padding samples are determined using samples that are restricted to be within a current processing unit associated with the current block.
-
公开(公告)号：US20230217021A1
公开(公告)日：2023-07-06
申请号：US18171049
申请日：2023-02-17
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Hsiao Chiang Chuang , Zhipin Deng
IPC: H04N19/117 , H04N19/82 , H04N19/176 , H04N19/70
CPC classification number: H04N19/117 , H04N19/82 , H04N19/176 , H04N19/70
Abstract: Devices, systems and methods for adaptive loop filtering are described. In an exemplary aspect, a method for video processing includes performing, for a current video block of a video, a filtering process that uses filter coefficients and comprises two or more operations with at least one intermediate result, applying a clipping operation to the at least one intermediate result, and performing, based on the at least one intermediate result, a conversion between the current video block and a bitstream representation of the video, wherein the at least one intermediate result is based on a weighted sum of the filter coefficients and differences between a current sample of the current video block and neighboring samples of the current sample.
-
公开(公告)号：US20230199190A1
公开(公告)日：2023-06-22
申请号：US18172028
申请日：2023-02-21
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yue Wang
IPC: H04N19/132 , H04N19/105 , H04N19/176 , H04N19/82 , H04N19/117
CPC classification number: H04N19/132 , H04N19/105 , H04N19/176 , H04N19/82 , H04N19/117
Abstract: 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：US11683531B2
公开(公告)日：2023-06-20
申请号：US17696560
申请日：2022-03-16
Inventor： Li Zhang , Hongbin Liu , Kai Zhang , Yue Wang
IPC: H04N19/82 , H04N19/186 , H04N19/70 , H04N19/117 , H04N19/174
CPC classification number: H04N19/82 , H04N19/117 , H04N19/174 , H04N19/186 , H04N19/70
Abstract: Methods, systems and devices for signaling the usage of adaptive loop filtering in image and video coding are described. An example method of video processing includes determining, for a conversion between a current region of a video and a bitstream representation of the video, whether a luma adaptive loop filter is used during the conversion and whether luma adaptive loop filter coefficients are included in the bitstream representation, wherein a single syntax element in the bitstream representation is indicative of use of the luma adaptive loop filter and signaling of the luma adaptive loop filter coefficients, and performing, based on the determining, the conversion.
-
公开(公告)号：US20230188710A1
公开(公告)日：2023-06-15
申请号：US18165017
申请日：2023-02-06
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Jizheng Xu , Yue Wang
IPC: H04N19/105 , H04N19/117 , H04N19/132 , H04N19/176 , H04N19/80 , H04N19/52 , H04N19/523 , H04N19/517
CPC classification number: H04N19/105 , H04N19/117 , H04N19/132 , H04N19/176 , H04N19/80 , H04N19/52 , H04N19/523 , H04N19/517
Abstract: A method of video processing is provided to include: deciding a coding mode used for representing a current video block of a video in a coded representation of the video; and coding the current video block into the coded representation according to the coding mode, wherein use of alternative half-pel accuracy filters in addition to a default half-pel accuracy filter for representing motion information is disabled for the current video block due to use of the coding mode.
-
-
-
-
-
-
-
-
-
Search Results
1338
records
(took 0.045 seconds)
