-
公开(公告)号：US12041237B2
公开(公告)日：2024-07-16
申请号：US17891800
申请日：2022-08-19
Inventor： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC: H04N19/103 , H04N19/119 , H04N19/129 , H04N19/157 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/70
CPC classification number: H04N19/129 , H04N19/103 , H04N19/119 , H04N19/157 , H04N19/172 , H04N19/174 , H04N19/1883 , 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 picture that includes one or more tiles and one or more rectangular slices and a bitstream of the video according to a rule. The rule specifies that, for iteratively determining information about the one or more rectangular slices, a variable indicating a tile index is updated only for slices having indices that are smaller than a value equal to a number of slices in the video picture minus 1.
-
公开(公告)号：US12028535B2
公开(公告)日：2024-07-02
申请号：US17714480
申请日：2022-04-06
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/00 , H04N19/117 , H04N19/159 , H04N19/186 , H04N19/70
CPC classification number: H04N19/186 , H04N19/117 , H04N19/159 , H04N19/70
Abstract: A method for video processing is provided to include: performing a conversion between a current video block of a video and a coded representation of current video block, wherein the conversion uses a coding mode in which the current video block is constructed based on a first domain and a second domain and/or chroma residue is scaled in a luma-dependent manner, and wherein information used for the coding mode is signaled in a parameter set that is different from a sequence parameter set (SPS), a video parameter set (VPS), a picture parameter set (PPS), or an adaptation parameter set (APS) used for carrying adaptive loop filtering (ALF) parameters.
-
公开(公告)号：US12003766B2
公开(公告)日：2024-06-04
申请号：US17942552
申请日：2022-09-12
Inventor： Zhipin Deng , Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu
IPC: H04N19/593 , H04N19/70
CPC classification number: H04N19/593 , H04N19/70
Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes encoding a current video block of a video using a matrix intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation; and adding, to a coded representation of the current video block, a syntax element indicative of applicability of the MIP mode to the current video block using arithmetic coding in which a context for the syntax element is derived based on a rule.
-
公开(公告)号：US12003711B2
公开(公告)日：2024-06-04
申请号：US17523131
申请日：2021-11-10
Inventor： Li Zhang , Weijia Zhu , Kai Zhang , Hongbin Liu , Jizheng Xu
IPC: H04N19/117 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/82
CPC classification number: H04N19/117 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/82
Abstract: In an exemplary aspect, a method for visual media processing includes identifying a boundary at a vertical edge and/or a horizontal edge of two video blocks; calculating a boundary strength of a filter based on at least one of the two video blocks crossing a vertical edge or a horizontal edge is coded using a combined intra-inter prediction (CIIP) mode; deciding whether to turn on or off the filter; selecting a strength of the filter in case the filter is turned on; and performing, based on the selecting, a deblocking filter (DB) process to the video blocks.
-
公开(公告)号：US20240179308A1
公开(公告)日：2024-05-30
申请号：US18430882
申请日：2024-02-02
Inventor： Wenbin Yin , Kai Zhang , Li Zhang
IPC: H04N19/117 , H04N19/132 , H04N19/157 , H04N19/70 , H04N19/82
CPC classification number: H04N19/117 , H04N19/132 , H04N19/157 , H04N19/70 , H04N19/82
Abstract: A method of processing media data. The method includes filtering a sample of a video unit using one or more virtual filters of a fusion mode to produce a filtering result; and performing a conversion between a video including the video unit and a bitstream of the video based on the sample as filtered. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.
-
Patent Agency Ranking
公开(公告)号：US11997264B2
公开(公告)日：2024-05-28
申请号：US17519269
申请日：2021-11-04
Inventor： Jiexi Wang , Jizheng Xu , Jaehong Chon , Weijia Zhu , Li Zhang , Yue Wang
IPC: H04N19/117 , H04N19/176 , H04N19/186 , H04N19/86
CPC classification number: H04N19/117 , H04N19/176 , H04N19/186 , H04N19/86
Abstract: A method for processing video data is described and the method includes: deriving, for a conversion between a video processing unit of the video and a bitstream of the video processing unit, at least one deblocking filter associated with a chroma deblocking filter process of the video processing unit; applying a same deblocking filter from the at least one deblocking filter for all chroma components of the video processing unit; and performing the conversion based on the same deblocking filter.
-
公开(公告)号：US20240171753A1
公开(公告)日：2024-05-23
申请号：US18513134
申请日：2023-11-17
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/159 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/176 , H04N19/186 , H04N19/577 , H04N19/96
CPC classification number: H04N19/159 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/176 , H04N19/186 , H04N19/577 , H04N19/96
Abstract: Techniques for implementing video processing techniques are described. In one example implementation, a method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, whether a combined inter and intra prediction (CIIP) coding technique is to be applied to the current block based on a characteristic of the current block. The CIIP coding technique uses an intermedia inter prediction value and an intermedia intra prediction value to derive a final prediction value of the current block. The method also includes performing the conversion based on the determining.
-
公开(公告)号：US11985340B2
公开(公告)日：2024-05-14
申请号：US17319909
申请日：2021-05-13
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/423 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/196 , H04N19/30 , H04N19/513 , H04N19/52
CPC classification number: H04N19/423 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/196 , H04N19/30 , H04N19/513 , H04N19/52
Abstract: History-based affine parameters inheritance is described. In an exemplary aspect, a method for video processing includes deriving, for a conversion between a current block of video and a bitstream representation of the current block, affine related information associated with an affine model to be used by the current block based on affine related information associated with an affine model used by a first block stored in a buffer, wherein the first block is affine coded prior to the current block; and performing the conversion by using the derived affine related information.
-
公开(公告)号：US11985329B2
公开(公告)日：2024-05-14
申请号：US17694008
申请日：2022-03-14
Applicant: Bytedance Inc.
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu
IPC: H04N19/196 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/86
CPC classification number: H04N19/14 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/70 , H04N19/86
Abstract: 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. During the conversion, a deblocking filter process is applied to at least some samples along an edge of the block, and wherein chroma quantization parameter (QP) offsets are added to outputs from a chroma QP table to determine parameters for the deblocking filter process.
-
公开(公告)号：US11985323B2
公开(公告)日：2024-05-14
申请号：US17881197
申请日：2022-08-04
Applicant: Bytedance, Inc.
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu , Hsiao Chiang Chuang
IPC: H04N19/132 , H04N19/11 , H04N19/124 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/593 , H04N19/70 , H04N19/105 , H04N19/59
CPC classification number: H04N19/132 , H04N19/11 , H04N19/124 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/593 , H04N19/70 , H04N19/105 , H04N19/59
Abstract: Video coding and decoding methods are described. An example method includes determining, based on an applicability rule, that a differential coding mode is applicable to a conversion between a chroma video block of a video and a bitstream representation of the chroma video block, and performing, based on the determining, the conversion between the chroma video block and the bitstream representation of the chroma video block using the differential coding mode, where the chroma video block is represented in the bitstream representation using a difference between a quantized residual of an intra prediction of the chroma video block and a prediction of the quantized residual in the differential coding mode, where the intra prediction is performed in a first direction and the prediction of the quantized residual is performed in a second direction, and where the difference is represented using a differential pulse coding modulation (DPCM) representation.
-
-
-
-
-
-
-
-
-
Search Results
1338
records
(took 0.031 seconds)
