ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,988, issued on Jan. 20, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Image coding method on basis of non-separable secondary transform and device therefor" was invented by Mehdi Salehifar (Seoul, South Korea), Seunghwan Kim (Seoul, South Korea), Jaehyun Lim (Seoul, South Korea) and Moonmo Koo (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image decoding method performed by means of a decoding device according to the present disclosure comprises the steps of: deriving transform coefficients of a target block from a bitstream; deriving a non-separable secondary transform (NSST) index with respect to the target bloc...