ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,728, issued on July 21, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).

"Neural network based transform set selection" was invented by Xin Zhao (Santa Clara, Calif.), Madhu Peringassery Krishnan (Mountain View, Calif.) and Shan Liu (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for coding and decoding of a coded bitstream is provided. A method includes encoding a block of a picture. The encoding includes selecting a transform set based on at least one neighboring sample from one or more previously encoded neighboring blocks or from a previously encoded picture and transforming coefficients of the block ...