Patent ID: 9681131
Date: 2017-06-13
CPC Classifications: H04N

Claim:
1. A method for encoding at least one image sub-divided into blocks, the method comprising: for at least one block to be encoded of said at least one image: predicting said at least one block to be encoded in a spatial domain, to obtain a predicted block, comparing said at least one block to be encoded with said predicted block, to obtain a residual block, called a current block, and transforming said current block from the spatial domain into a transform domain delivering a transform block, by an encoding device, said transform block being formed by a set of coefficients representing said current block, called original coefficients; selecting a subset of the original coefficients from said set, and for at least one original coefficient of said subset, performing the following acts with the encoding device: determining a coefficient residue, by comparison of said original coefficient and of said estimated coefficient; and encoding said coefficient residue.