ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,088, issued on March 18, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Transform-based image coding method and apparatus for same" was invented by Moonmo Koo (Seoul, South Korea), Jaehyun Lim (Seoul, South Korea) and Seunghwan Kim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image decoding method according to the present disclosure may comprise: a step of parsing an LFNST index on the basis of individual transform skip flag values for color components of a current block; a step of deriving modified transform coefficients by applying LFNST to transform coefficients; and a step of deriving residual samples with r...