METHODS AND APPARATUSES OF INTER-LAYER PREDICTION FOR VIDIO SIGNAL

摘要

PURPOSE: A prediction method between classes of an image signal and an apparatus thereof are provided to remove redundancy for intra prediction information between classes using an intra prediction mode of a block corresponding to a lower class in case an encoding target block is predictably encoded in a screen. CONSTITUTION: An image encoding device determines a lower class block corresponding to an encoding target block (S110). The image encoding device encodes the encoding target block using an intra prediction mode of the determined lower class (S120). The image encoding device produces a prediction signal of the encoding target block using the intra prediction mode of the determined lower class block in an encoding step or uses the intra prediction mode of the lower class block as a most probable mode object of the encoding target block. [Reference numerals] (AA) Start; (BB) End; (S110) Determine a lower class block corresponding to an encoding target block; (S120) Encode the encoding target block using an intra prediction mode of the determined lower class