ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,191, issued on Feb. 24, was assigned to Tencent America LLC (Palo Alto, Calif.).
"Cross-component sample offset" was invented by Yixin Du (Los Altos, Calif.), Xin Zhao (San Jose, Calif.) and Shan Liu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a method for filtering in video decoding, a first combination of filter tap values is determined based on reconstructed sample values of reconstructed samples of a first color component within a filter support region. Based on a lookup table (LUT) indicating a mapping that associates offset values with different combinations of filter tap values, a first offset value of the offset value...