ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,812, issued on Aug. 26, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).
"Method and apparatus for affine motion refinement" was invented by Guichun Li (San Jose, Calif.), Xin Zhao (San Jose, Calif.), Lien-Fei Chen (Hsinchu, Taiwan) and Shan Liu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Processing circuitry determines an initial affine model with bi-prediction for a current block in an affine motion inter prediction mode, the initial affine model predicts the current block based on a first reference picture and a second reference picture. The processing circuitry performs a multi-stage bilateral matching motion refinem...