METHOD OF INTRA PREDICTION ENCODING AND DECODING IMAGE

摘要

PURPOSE: An intra prediction encoding and decoding method of an image is provided to increase the accuracy of prediction in an intra prediction encoding of an encoding target block. CONSTITUTION: An intra prediction encoding apparatus determines an intra prediction mode of a current block(S110). The apparatus determines the maximum enable mode of the current block(S120). The apparatus determines the intra prediction mode of the encoding target block. The apparatus determines the intra prediction mode of the current encoding target block by comparison of the intra prediction mode and the maximum enable mode of the current block(S160,S165). The apparatus encodes the intra prediction mode of the current encoding target block by using two or more encoding tables(S180,S185). [Reference numerals] (AA) Start; (BB) End; (S110) Determining an intra prediction mode of a current block; (S120) Determining the maximum available mode of the current block; (S130) Identifying the intra prediction mode with the maximum available mode?; (S140) Allocating code number 0; (S150) Intra prediction code number < the maximum available mode number; (S160) Determining the current intra prediction mode to the encoded intra prediction mode; (S165) Determining a prediction mode having an intra prediction mode number as an intra prediction mode to be encoded; (S170) An intra prediction mode between an upper block and a left block is less than a specific value?; (S180) Using a first encoding table; (S185) Using a second encoding table