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:
Aug. 04, 2026
Filed:
Oct. 07, 2022
Tencent America Llc, Palo Alto, CA (US);
Tencent America LLC, Palo Alto, CA (US);
Abstract
A symmetric affine mode is applied to a current block. First affine parameters of a first affine model of the symmetric affine mode are determined. The first affine model is associated with the current block and a first reference block of the current block in a first reference picture. Second affine parameters of a second affine model of the symmetric affine mode are derived based on the first affine parameters of the first affine model. The second affine model is associated with the current block and a second reference block of the current block in a second reference picture. The first affine parameters and the second affine parameters have one of opposites signs, inverse values, and a proportional relationship. Control point motion vectors (CPMVs) of the current block are determined based on the first and second affine models. The current block is reconstructed based on the determined CPMVs.