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:
Sep. 08, 2026
Filed:
May. 16, 2023
Mediatek Inc., Hsinchu City, TW;
Chen-Yen Lai, Hsinchu City, TW;
Tzu-Der Chuang, Hsinchu City, TW;
Ching-Yeh Chen, Hsinchu City, TW;
Chih-Wei Hsu, Hsinchu City, TW;
Yu-Wen Huang, Hsinchu City, TW;
MEDIATEK INC., Hsin-Chu, TW;
Abstract
Method and apparatus of using bi-directional prediction to refine MV are disclosed. According to one method, a sample-based refinement and a subblock-based refinement are determined for the current block. A final refinement for the current block is determined based on the sample-based refinement and the subblock-based refinement. According to another method, one or more high-level syntaxes are signalled or parsed, where the high-level syntaxes indicate whether non-equal distance reference pictures are allowed for bi-directional motion refinement. In response to the high-level syntaxes indicating the non-equal distance reference pictures being allowed, a refined MV is determined for at least one block in the current picture based on a reference picture in list 0 and a reference picture in list 1, where the picture distance between the first reference picture and the current picture and the picture distance between the second reference picture and the current picture are different.