INTRA PREDICTION METHOD AND ENCODING APPARATUS AND DECODING APPARATUS USING SAME

摘要

The present invention relates to an intra prediction method and to an apparatus using the same. The intra prediction method according to the present invention comprises the following steps: inducing a current prediction mode as a prediction mode for a current block; constructing peripheral samples of the current block to an available reference sample; filtering the available reference sample; and generating a prediction sample for the current block based on the filtered modified reference sample, wherein the filtering step is performed using the available reference sample located in a prediction direction of the current prediction mode and a predetermined number of available reference samples arranged near said prediction direction of the current prediction mode.