MOVING PICTURE DECODING METHOD AND DEVICE, AND MOVING PICTURE ENCODING METHOD AND DEVICE

摘要

The objective is to reduce the amount of code in the encoding/decoding process for a moving picture. In an intra prediction process, the degree of ease of estimating the prediction direction or the block mode for a block to be decoded is determined based on the prediction direction data or the block mode for multiple adjacent blocks which have been decoded previously and which are adjacent to the block to be decoded; the prediction direction data or the block mode for the block to be decoded is decoded based on the result of said determination; and intra prediction is performed based on the decoded prediction direction data or the block mode to generate decoded image data.