Patent ID: 9374597
Filing Date: 2016-06-21
CPC Classification: H04N

Claim Text:
1. Prediction method of a pixel block of an image that comprises a search step for candidate patches during which a set of candidate patches is formed from at least one patch belonging to an image other than the image to which the block to be predicted belongs, each patch being formed by a block and a neighbourhood that is causal of this block and a dictionary definition sub-step during which it is determined, for each dictionary, a neighbourhood prediction sub-step during which, for each dictionary, a prediction of the causal neighbourhood of the block to be predicted is determined using a weighted linear combination of neighbourhoods of patches of the dictionary; weighting parameters which optimise the prediction are chosen, and a block prediction sub-step during which the pixel block of the image is predicted by a weighted linear combination of the pixels of the blocks of the patches of a dictionary, the weighting parameters of said linear combination being those optimums that have been determined during the neighbourhood prediction step.