METHODS FOR DECODING AND ENCODING VIDEO AND LONG-TERM RECORDING MATERIALS READ BY COMPUTERS FOR BIT STREAM RECORDING

Abstract

The invention relates to a method and device for performing in-image prediction in video encoding and decoding processes by configuring a set of complementary modes based on the most probable (MPM) modes of the current block, and determining the predicted in-image mode of the current block based on the MPM modes and the set of complementary modes. To address these technical issues, the video decoding method proposed in the invention includes the steps of configuring a set of complementary modes based on the MPM modes of the current block; determining the predicted in-image mode of the current block based on the MPM modes and the set of complementary modes; and performing in-image prediction on the current block based on the predicted in-image mode.