IMAGE PROCESSING DEVICE, DECODING METHOD, INTRA-FRAME DECODER, INTRA-FRAME DECODING METHOD, AND INTRA-FRAME ENCODER

摘要

A decoder is adopted that generates reproduction image data in such a way that when pixels overlap between a predicted block indicated by vector information extracted from a data stream and a decoding target block, part of pixel information, which is located away from the overlapped part at a position obtained by multiplying a vector given by the vector information and the decoding processing of which is completed, is set as a predicted signal in place of the overlapped part and this predicted signal is added to difference image data obtained from the data stream. The decoder is used in an intra-frame decoder, a local decoder of an encoding device, and other devices. Since pixels at multiplied positions become similar to each other according to the repeated pattern principle of an image, effective decode processing can be performed.