Patent ID: 9521412
Filing Date: 2016-12-13
CPC Classification: H04N

Claim Text:
1. A method of determining residual data for encoding or decoding at least part of an image of an enhancement layer of video data, the video data including the enhancement layer and a base layer, the enhancement layer being composed of processing blocks and the base layer being composed of elementary units each having associated residual data, the method comprising: for a processing block of the enhancement layer, determining, based on at least the number of elementary units of the base layer spatially corresponding, at least partially, to the processing block, whether or not to use residual data of one or more of said spatially corresponding elementary units of the base layer for prediction of the processing block, wherein in the case where only one elementary unit spatially corresponds to the processing block, the residual data associated with the said one elementary unit is used for prediction of the corresponding processing block of the enhancement layer; wherein the predefined condition defines that the motion vectors of the plurality of elementary units are consistent with one another.