ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,233, issued on Feb. 24, was assigned to Tencent America LLC (Palo Alto, Calif.).

"CTU-row based geometric transform" was invented by Xin Zhao (San Jose, Calif.), Guichun Li (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: "A video bitstream comprising a current picture of a video is received. A first group of samples and a second group of samples in the current picture are determined. A first geometric transform is determined for the first group of samples in the current picture and a second geometric transform is determined for the second group of samples in the current...