INTRA PREDICTION METHOD AND INTRA PREDICTION APPARATUS USING RESIDUAL TRANSFORM

摘要

The present invention relates to a method and apparatus for performing intra prediction. The method comprises the steps of: generating a residual signal according to an intra prediction mode; performing a residual transform by applying a pixel-based DPCM in a first direction to the residual signal; and performing cross residual transform by applying the pixel-based DPCM in a second direction to the residual-transformed residual signal, wherein the residual transform and cross residual transform are performed on a selected region on the basis of a specific object or a block.