公开(公告)号：US12101468B2

公开(公告)日：2024-09-24

申请号：US17933755

申请日：2022-09-20

Applicant: Lemon Inc.

Inventor： Na Zhang ,  Kai Zhang ,  Li Zhang ,  Hongbin Liu ,  Yuwen He ,  Yue Wang

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

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: Implementations of the present disclosure provide a solution for reordering merge candidates. In this solution, during a conversion between a current video block of a video and a bitstream of the video, a template matching cost associated with each of a plurality of candidates of motion information for the current video block is determined. The template matching cost is determined based on a first difference between a set of neighboring samples of the current video block and a set of reference samples corresponding to the set of neighboring samples, and a second difference between a set of reconstructed samples neighboring to the set of neighboring samples and the set of reference samples. The set of reference samples is determined based on motion information indicated by a respective candidate. Then, the plurality of candidates of motion information is reordered based on the template matching cost.

公开(公告)号：US20230014915A1

公开(公告)日：2023-01-19

申请号：US17933755

申请日：2022-09-20

Applicant: Lemon Inc.

Inventor： Na ZHANG ,  Kai Zhang ,  Li Zhang ,  Hongbin Liu ,  Yuwen He ,  Yue Wang

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

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：US11936899B2

公开(公告)日：2024-03-19

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 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46

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：US11671616B2

公开(公告)日：2023-06-06

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: H04N19/533 ,  H04N19/513 ,  H04N19/137 ,  H04N19/176 ,  H04N19/159 ,  H04N19/105

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/137 ,  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：US11477437B2

公开(公告)日：2022-10-18

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 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

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：US12219166B2

公开(公告)日：2025-02-04

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 ,  H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/186

Abstract: Example implementations include 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：US12058310B2

公开(公告)日：2024-08-06

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

CPC classification number: 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.