ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,468, issued on April 29, was assigned to Sharp K.K. (Sakai, Japan).
"Prediction image generation apparatus, video decoding apparatus, video coding apparatus, and prediction image generation method" was invented by Yukinobu Yasugi (Sakai, Japan), Eiichi Sasaki (Sakai, Japan), Tomohiro Ikai (Sakai, Japan) and Tomoko Aono (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The amount of memory required for CCLM prediction is reduced. The CCLM prediction parameter derivation unit (310442) derives a scale shift value corresponding to a luma difference value, and derives a CCLM prediction parameter, by shifting, by using the scale shift value, a v...