METHOD FOR ENCODING A CURRENT BLOCK OF A FIRST IMAGE COMPONENT RELATIVE TO A REFERENCE BLOCK OF AT LEAST ONE SECOND IMAGE COMPONENT, ENCODING DEVICE AND CORRESPONDING COMPUTER PROGRAM

摘要

A method for coding a current block of a first image component with respect to a reference block of at least one second image component. The first and second image components are representative of the same scene, and the reference block being previously subjected to coding by partitioning, and then to decoding. Partitioning of the reference block is performed a plurality of times until a determined level of depth of partitioning is obtained. The coding method includes, as a function of the type of the first and second image components: partitioning the current block a plurality of times until a level of depth of partitioning dependent on the level of partitioning of the reference block is obtained; or partitioning the current block on the basis of a level of depth of partitioning previously initialized by a level of partitioning depending on the level of partitioning for the reference block.