Patent ID: 9445129
Filing Date: 2016-09-13
CPC Classification: H04N

Claim Text:
1. An image decoding method for decoding a coded image signal obtained by coding an image per block, the image decoding method comprising: performing inverse transform for transform units each of which is an area obtained by partitioning a target block, to generate a decoded difference image of the target block; performing prediction process on prediction units each of which is an area obtained by partitioning the target block, to generate a prediction image of the target block; performing a boundary filtering process on a boundary of the prediction unit in the generated prediction image, when the boundary of the prediction unit is located within a transform unit, the transform unit being an area obtained by partitioning the target block and being a processing unit for frequency transform; and adding the prediction image after the filtering process and the decoded difference image to generate a decoded image of the target block.