ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,839, issued on March 4, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).
"Constraint of minimum quaternary tree size" was invented by Guichun Li (San Jose, Calif.), Xiang Li (Saratoga, Calif.) and Shan Liu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for video encoding includes processing circuitry that is configured to decode partition information from a coded video bitstream. The partition information is indicative of a minimum allowed QT leaf node size for a I slice. The minimum allowed QT leaf node size for the I slice is constrained by a threshold that is lower than a CTU size. The processing circuitry i...