公开(公告)号：US20220239899A1

公开(公告)日：2022-07-28

申请号：US17161335

申请日：2021-01-28

Applicant: Lemon Inc.

Inventor： Na ZHANG ,  Kai ZHANG ,  Li ZHANG ,  Hongbin LIU ,  Yuwen HE ,  Yue WANG

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/46 ,  H04N19/186 ,  H04N19/176

Abstract: Implementations of the present disclosure provide a solution for encoding and decoding motion information. In this solution, during a conversion between a current video block of a video and a bitstream of the video, a group type of a subgroup of candidates of motion information for the current video block is determined, wherein the group type indicating whether the subgroup of candidates are to be reordered. Further, a list of candidates are constructed based on the group type; and the motion information for the current video block is derived from the list of candidates.

公开(公告)号：US20220286709A1

公开(公告)日：2022-09-08

申请号：US17187667

申请日：2021-02-26

Applicant: Lemon Inc.

Inventor： Weijia ZHU ,  Jizheng XU ,  Li ZHANG ,  Yue WANG

IPC: H04N19/70 ,  H04N19/189 ,  H04N19/169 ,  H04N19/186 ,  H04N19/159

Abstract: Example implementations include a method, apparatus and computer-readable medium of video coding, comprising performing a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and at least one base layer, and wherein the bitstream comprises first layer information which is utilized in a first process performed on the at least one base layer and second layer information which is utilized in a second process performed on the alpha layer.

公开(公告)号：US20220295090A1

公开(公告)日：2022-09-15

申请号：US17200632

申请日：2021-03-12

Applicant: Lemon Inc.

Inventor： Na ZHANG ,  Kai ZHANG ,  Hongbin LIU ,  Li ZHANG ,  Yue WANG

IPC: H04N19/513 ,  H04N19/137 ,  H04N19/105 ,  H04N19/132 ,  H04N19/186 ,  H04N19/176

Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer storage media for video processing. One example method comprises determining, during a conversion between a current video block of a video and a bitstream of the video, a motion candidate for the current video block; refining the motion candidate by performing a local search around the motion candidate based on a template matching cost rule; and performing the conversion based on the refined motion candidate, wherein a search order of the local search is related to a coding mode of the current video block.

公开(公告)号：US20220295089A1

公开(公告)日：2022-09-15

申请号：US17200631

申请日：2021-03-12

Applicant: Lemon Inc.

Inventor： Na ZHANG ,  Kai ZHANG ,  Hongbin LIU ,  Li ZHANG ,  Yue WANG

IPC: H04N19/513 ,  H04N19/137 ,  H04N19/105 ,  H04N19/46 ,  H04N19/176

Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer storage media for video processing. One example method comprises determining, during a conversion between a current video block of a video and a bitstream of the video, at least one set of motion candidates for the current video block, each motion candidate comprising predicted motion information determined from neighboring video blocks of the current video block; determining, based on a template of the current video block and from the at least one set of motion candidates, a target motion candidate for the current video block by using a template matching cost rule; and performing the conversion based on the target motion candidate.

公开(公告)号：US20220295088A1

公开(公告)日：2022-09-15

申请号：US17200628

申请日：2021-03-12

Applicant: Lemon Inc.

Inventor： Na ZHANG ,  Kai ZHANG ,  Hongbin LIU ,  Li ZHANG ,  Yue WANG

IPC: H04N19/513 ,  H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer storage media for video processing. One example method comprises determining, during a conversion between a current video block of a video and a bitstream of the video, a set of motion candidates for the current video block; determining, for each motion candidate in the set of motion candidates, a refined motion candidate by performing a local search around the each motion candidate based on a template matching cost rule; determining, from a set of refined motion candidates generated for the set of motion candidates, a target motion candidate for the current video block; and performing the conversion based on the target motion candidate.

公开(公告)号：US20220286666A1

公开(公告)日：2022-09-08

申请号：US17187674

申请日：2021-02-26

Applicant: Lemon Inc.

Inventor： Weijia ZHU ,  Jizheng XU ,  Li ZHANG ,  Yue WANG

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/513

Abstract: Example implementations include a method, apparatus and computer-readable medium of video coding, comprising performing a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and a base layer, and wherein the bitstream comprises a current block in the alpha layer of a current picture that is predicted from one or more reference blocks in the base layer.

公开(公告)号：US20220279185A1

公开(公告)日：2022-09-01

申请号：US17187670

申请日：2021-02-26

Applicant: Lemon Inc.

Inventor： Weijia ZHU ,  Jizheng XU ,  Li ZHANG ,  Yue WANG

IPC: H04N19/13 ,  H04N19/176 ,  H04N19/169 ,  H04N19/132 ,  H04N19/105 ,  H04N19/82 ,  H04N19/117 ,  H04N19/186

Abstract: Example implementations include a method, apparatus and computer-readable medium of video coding, comprising determining, for a conversion between a video comprising a plurality of pictures and a bitstream of the video, first layer information which is utilized in a first process performed on a first layer of each picture. The implementations further include determining, second layer information which is utilized in a second process performed on a second layer of each picture. Additionally, the implementations further include performing the conversion for the second layer based on the first layer information and the second layer information.