US Patent Issued to TENCENT AMERICA on Aug. 11 for "SEI message for film grain synthesis" (California Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,093, issued on Aug. 11, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).

"SEI message for film grain synthesis" was invented by Stephan Wenger (Palo Alto, Calif.) and Arianne Hinds (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus comprising computer code configured to cause a processor or processors to obtain video data comprising at least one coded picture, reconstruct a coded picture including a film grain characteristics SEI message, an alpha channel information SEI message, and at least a first sample and a second sample and at least a third alpha map sample and a fourth alpha map sample, wherein a...