Patent ID: 9123109
Filing Date: 2015-09-01
Classification: G06T,H04N

Abstract:
1. An image processing device comprising: a phase shift unit configured to select whether or not to horizontally shift a phase of an upper adjacent pixel adjacent to an intra prediction block as a reference pixel of intra prediction in accordance with a direction of an intra prediction mode; a prediction image generating unit configured to perform the intra prediction using the upper adjacent pixel as the reference pixel and to generate a prediction image of the intra prediction block; and a decoding unit configured to decode the intra prediction block using the prediction image generated by the prediction image generating unit, wherein an interpolated pixel is generated as the reference pixel of intra prediction and the interpolated pixel falls between the upper adjacent pixel and another upper adjacent pixel that is horizontally adjacent to the upper adjacent pixel in a condition that the phase shift unit selects to horizontally shift the phase of the upper pixel adjacent to the intra prediction block.