US Patent Issued to LG Electronics on April 8 for "Image coding method based on secondary transform, and device therefor" (South Korean Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,563, issued on April 8, 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) and Seunghwan Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image decoding method comprises the steps of: deriving transform coefficients through inverse quantization on the basis of quantized transform coefficients for a target block; deriving modified transform coefficients on the basis of an inverse reduced secondary transform (RST) for the transform coefficients; and generating a restor...