US Patent Issued to LG Electronics on June 2 for "Luma mapping and chroma scaling-based video or image coding" (South Korean Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,647,582, issued on June 2, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Luma mapping and chroma scaling-based video or image coding" was invented by Jie Zhao (Seoul, South Korea) and Seunghwan Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to the disclosure of the present document, a chroma residual scaling factor is derived on the basis of information relating to an absolute value of a chroma residual scaling delta value and information relating to a sign of the chroma residual scaling delta value, and an LMCS procedure can be efficiently performed by applying explicit signaling to information relating to ...