US Patent Issued to BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY on Dec. 23 for "Methods and apparatus for prediction refinement with optical flow" (American, Chinese Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,874, issued on Dec. 23, was assigned to BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY Co. LTD. (Beijing).

"Methods and apparatus for prediction refinement with optical flow" was invented by Xiaoyu Xiu (San Diego), Yi-Wen Chen (San Diego), Xianglin Wang (San Diego) and Bing Yu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for PROF. A decoder obtains first reference picture and second reference picture associated with a video block that is coded by affine mode within a video signal. The decoder obtains first and second horizontal and vertical gradient val...