Patent ID: 10165296

Abstract:
A method of coding an image comprising the steps of partitioning (C1, C2) the image into a plurality of blocks (CTU1, CTU2, . . . , CTUi, . . . , CTUs) able to contain symbols belonging to a predetermined set of symbols, of entropy coding of a current block on the basis of at least one probability of symbol occurrence and of predictive coding of a compression parameter (QP) associated with said current block. In the case where the current block is the first block to be coded of a considered set of consecutive blocks to be coded, the following steps are carried out: determination (C40a)), during said step of entropy coding, of probabilities of symbol occurrence for said first current block, based on the probabilities determined of completion of the coding and decoding of the last block of another set of blocks immediately preceding said considered set in the order of coding of the blocks; and assignment (C41a)), during said predictive coding step, of a compression parameter prediction value which is independent of the compression parameter value associated with said last block.