METHOD AND APPARATUS FOR INTRA PREDICTION IN VIDEO ENCODING AND DECODING

摘要

A method and an apparatus for video encoding and decoding, and more particularly, a method and an apparatus for performing intra prediction using reference sample portion having a thickness of at least two pixels and intra prediction modes based on such reference sample portion The intra-prediction mode may specify a direction and a propagation model for determining the manner of propagating samples in the prediction block. Using a reference sample portion having a thickness of at least two pixels allows the variations in the pixel values to be used in propagating the samples in the prediction block.