VIDEO ENCODING/DECODING METHOD AND APPARATUS USING ARBITRARY PIXEL IN SUBBLOCK

摘要

PURPOSE: A video encoding/decoding method using a pixel in a sub block and an apparatus thereof are provided to improve prediction accuracy during intra prediction about pixels of a block that a user wants to encode or decode, thereby improving encoding efficiency. CONSTITUTION: A random pixel extractor(702) extracts a pixel to generate a pixel block. The first predicting unit(704) predicts the pixel block to generate a prediction pixel block. The first subtracting unit(706) subtracts the pixel block and the prediction pixel block to generate a pixel residual block. The first converting unit(708) converts the pixel residual block.