ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,088, issued on June 23, was assigned to Tencent America LLC (Palo Alto, Calif.).

"Filter location of 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 video decoding, an offset value in a look up table of a cross-component sample offset (CCSO) filter is determined based on first reconstructed samples in a filter chain after a deblocking filter in the filter chain is applied and before a constrained directional enhancement filter (CDEF) in the filter chain is applied. The offset value of the CCSO filter ...