ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,112, issued on March 17, was assigned to BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY Co. LTD. (Beijing).

"Methods and apparatuses for prediction refinement with optical flow, bi-directional optical flow, and decoder-side motion vector refinement" 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: "A method for video encoding, a comuting device, and a non-transitory computer readable storage medium are provided. The method includes transmitting, by an encoder, a first control flag in a sequence parameter set (SPS), a second control flag in th...