Patent 11184606 was granted and assigned to KT (energy) on November, 2021 by the United States Patent and Trademark Office.
A method of video decoding according to the present invention may comprise determining an intra prediction mode of a current block, determining a DC value based on at least one of top reference samples or left reference samples of the current block when the intra prediction mode of the current block is a DC mode, and deriving a prediction sample of the current block based on the DC value.