US Patent Issued to InterDigital CE Patent Holdings on May 27 for "Secondary transform for video encoding and decoding" (French Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,874, issued on May 27, was assigned to InterDigital CE Patent Holdings SAS (Paris).

"Secondary transform for video encoding and decoding" was invented by Fabrice Leleannec (Betton, France), Karam Naser (Mouaze, France), Tangi Poirier (Thorigne-Fouillard, France) and Franck Galpin (Thorigne-Fouillard, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for encoding/decoding a picture use a secondary transform for video encoding and decoding in INTRA mode and more particularly use a secondary transform for the transform units of a coding unit in intra sub partition mode. Different signaling and selection variants are proposed ...