Patent ID: 9503728
Filing Date: 2016-11-22
CPC Classification: H04N

Claim Text:
1. An image processing device comprising: a decoder receiving intra-frame prediction direction from an encoder using directional intra-frame prediction decoding, wherein, on condition that a prediction block, generated by vector information extracted from a data stream provided by the encoder, and a decode-target block have an overlap region, the overlap region containing pixels of the prediction block and pixels of the decode-target block, the decoder uses as a prediction signal pixel information of an already-decoded portion located at a distance from the overlap region, the distance being that of an integer multiple of a size of a first vector, the first vector indicating a relative position from a pixel of the decode-target block to a corresponding pixel of the prediction block and being provided by the vector information, and adds the prediction signal to difference image data taken from the data stream to generate reproduction image data of the decode-target block,