ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,103, issued on March 18, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Image coding method based on secondary transform and device therefor" was invented by Moonmo Koo (Seoul, South Korea), Jaehyun Lim (Seoul, South Korea), Seunghwan Kim (Seoul, South Korea) and Mehdi Salehifar (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image decoding method according to the present specification comprises the steps of: deriving transform coefficients through inverse quantization on the basis of quantized transform coefficient for a target block; deriving modified transform coefficients on the basis of inverse reduced seconda...