The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2025
Filed:
Dec. 19, 2023
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Kiyofumi Abe, Osaka, JP;
Takahiro Nishi, Nara, JP;
Tadamasa Toma, Osaka, JP;
Ryuichi Kanoh, Osaka, JP;
Chong Soon Lim, Singapore, SG;
Ru Ling Liao, Singapore, SG;
Hai Wei Sun, Singapore, SG;
Sughosh Pavan Shashidhar, Singapore, SG;
Han Boon Teo, Singapore, SG;
Jing Ya Li, Singapore, SG;
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Abstract
An encoder includes circuitry and memory. Using the memory, the circuitry, in operation, selects an encoding mode from among candidates including a decoder-side motion vector refinement (DMVR) encoding mode and a partition encoding mode. When the DMVR encoding mode is selected, the circuitry: obtains a first motion vector for a first image block; derives a second motion vector from the first motion vector using motion search; and generates a prediction image for the first image block using the second motion vector. When the partition encoding mode is selected, the circuitry: determines a plurality of partitions in a second image block; obtains a third motion vector for each partition; and generates a prediction image for the second image block using the third motion vector, without deriving a fourth motion vector from the third motion vector using motion search.