-
81.发明申请公开(公告)号：US20210281877A1
公开(公告)日：2021-09-09
申请号：US17330889
申请日：2021-05-26
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Jizheng XU , Yue WANG
IPC: H04N19/56 , H04N19/52 , H04N19/184 , H04N19/176 , H04N19/593
Abstract: A method for video processing is provided to include constructing, during a conversion between a current video block and a coded representation of the current video block, an intra block copy (IBC) motion candidate list, wherein insertion of motion candidates to the IBC motion candidate list is subject to a size restriction; and performing the conversion using the IBC motion candidate list.
-
公开(公告)号：US20210258575A1
公开(公告)日：2021-08-19
申请号：US17244533
申请日：2021-04-29
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG , Na ZHANG
IPC: H04N19/119 , H04N19/105 , H04N19/46 , H04N19/176
Abstract: Devices, systems and methods for digital video coding, which include geometric partitioning, are described. An exemplary method for video processing includes making a decision, based on a priority rule, regarding an order of insertion of motion candidates into a motion candidate list for a conversion between a current block of video and a bitstream representation of the video, wherein the current block is coded using a geometry partition mode; and performing, based on the decision and the motion candidate list, the conversion.
-
公开(公告)号：US20210250602A1
公开(公告)日：2021-08-12
申请号：US17199925
申请日：2021-03-12
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Jizheng XU , Yue WANG
IPC: H04N19/513 , H04N19/176 , H04N19/109
Abstract: Techniques for video processing are described. One example method includes determining an indication that indicates a maximum number of candidates allowed in a candidate list for at least one video block in a video, the maximum number of candidates allowed in the candidate list corresponding to at least one of a maximum number of candidates in a geometry partition mode (GEO) based merge candidate list, a maximum number of base candidates in a merge with motion vector difference (MMVD) merge candidate list, a maximum number of base candidates in a sub-block based MMVD merge candidate list, and a maximum number of candidates in a geometry partition mode based affine merge candidate list; and performing video processing on the at least one video block based on the indication.
-
公开(公告)号：US20210243468A1
公开(公告)日：2021-08-05
申请号：US17237450
申请日：2021-04-22
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/52 , H04N19/176 , H04N19/184
Abstract: Devices, systems and methods for utilization of motion information for affine mode are described. In a representative aspect, a video processing method includes: acquiring, during a conversion between a current block and a bitstream representation of the current block, motion information of the current block, wherein the motion information of the current block is based on at least one affine model parameter of a neighboring block of the current block; and performing, based on the motion information, the conversion between the current block and the bitstream representation of the current block.
-
公开(公告)号：US20210227250A1
公开(公告)日：2021-07-22
申请号：US17225504
申请日：2021-04-08
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/577 , H04N19/176 , H04N19/105 , H04N19/186 , H04N19/593 , H04N19/119
Abstract: Gradient computation in Bi-directional optical flow are described. In a representative aspect, a method of video processing including: modifying temporal gradients in a motion vectors refinement process of a video block or sub-blocks within the video block; and performing the motion vectors refinement process of the video block or the sub-blocks within the video block based on the modified temporal gradients.
-
Patent Agency Ranking
公开(公告)号：US20210211647A1
公开(公告)日：2021-07-08
申请号：US17207060
申请日：2021-03-19
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/105 , H04N19/137 , H04N19/30 , H04N19/176
Abstract: A method of video processing includes determining, for a current block, at least one motion candidate list; and performing a conversion between the current block and a bitstream representation of the current block using the at least one motion candidate list, the at least one motion candidate list including at least one motion candidate derived from a set of neighboring blocks including one or more spatial and temporal neighboring blocks.
-
公开(公告)号：US20210160532A1
公开(公告)日：2021-05-27
申请号：US17167232
申请日：2021-02-04
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Jizheng XU , Yue WANG
IPC: H04N19/52 , H04N19/176 , H04N19/184
Abstract: Devices, systems and methods for digital video coding, which includes constructing separate motion candidate lists for video coding, are described. An exemplary method for video processing includes constructing, for a first video block of a video, a first motion candidate list using a first motion candidate list construction method that includes motion candidates that only relate to history-based motion vector prediction (HMVP) candidates, and performing a conversion between the first video block and a bitstream representation of the video including the first video block according to the constructed first motion candidate list.
-
公开(公告)号：US20210160531A1
公开(公告)日：2021-05-27
申请号：US17161316
申请日：2021-01-28
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Jizheng XU , Yue WANG
IPC: H04N19/52 , H04N19/176
Abstract: Devices, systems and methods for digital video coding, which include sub-block based inter prediction methods, are described. An exemplary method for video processing includes determining, for a conversion between a current block of video and a bitstream representation of the video, a maximum number of candidates in a sub-block based merge candidate list and/or whether to add sub-block based temporal motion vector prediction (SbTMVP) candidates to the sub-block based merge candidate list based on whether temporal motion vector prediction (TMVP) is enabled for use during the conversion or whether a current picture referencing (CPR) coding mode is used for the conversion, and performing, based on the determining, the conversion.
-
公开(公告)号：US20210144409A1
公开(公告)日：2021-05-13
申请号：US17150256
申请日：2021-01-15
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/80 , H04N19/117 , H04N19/176 , H04N19/184
Abstract: A method for video bitstream processing includes determining, by a processor, that a reconstructed representation of a current sample of video data is to be subject to a bilateral filter defined by one or more parameters based, at least in part, on a weighted sum of sample intensity differences (SDiff) between a first window covering the current sample and a second window covering a neighboring sample, wherein multiple sample intensity differences are assigned unequal weights; and applying the bilateral filter defined by the one or more parameters to the reconstructed representation of the current sample of the video data.
-
公开(公告)号：US20210144400A1
公开(公告)日：2021-05-13
申请号：US17154485
申请日：2021-01-21
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Jizheng XU , Yue WANG
IPC: H04N19/52 , H04N19/176 , H04N19/184 , H04N19/159 , H04N19/105 , H04N19/593 , H04N19/119 , H04N19/577
Abstract: Difference calculation based on partial position is described. In a representative aspect, a method of video processing comprising: calculating, during a conversion between a current block of video and a bitstream representation of the current block, differences between two reference blocks associated with the current block or differences between two reference sub-blocks associated with a sub-block within the current block based on representative positions of the reference blocks or representative positions of the reference sub-blocks; and performing the conversion based on the differences.
-
-
-
-
-
-
-
-
-
Search Results
577
records
(took 0.028 seconds)
