ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,728, issued on Feb. 17, was assigned to Tencent America LLC (Palo Alto, Calif.).
"CABAC context model grouping" was invented by Guichun Li (San Jose, Calif.), Xin Zhao (San Jose, Calif.) and Shan Liu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A video bitstream comprising a current block in a current picture is received. A plurality of groups of context models associated with coding parameter values used to code the current picture is determined. Each group of the plurality of groups of context models is grouped based on one or more of the coding parameter values. A group of context models for the current block is determined fro...