ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,999, issued on Jan. 20, was assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP. LTD. (Guangdong, China).

"Intra prediction method and decoder" was invented by Luhang Xu (Guangdong, China) and Zhihuang Xie (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An intra prediction method and a decoder are provided. The method includes the following. A prediction mode parameter is obtained, where the prediction mode parameter indicates that an intra prediction value is to be determined in a derivation manner. At least two prediction modes are determined according to the derivation manner. A first weight combination related to the at le...