| 摘要 |
The invention relates to a method of coding an image or a sequence of images, generating a data stream, each image being split into at least two image blocks with each of which is associated a transformed block comprising a set of coefficients, the coefficients of a transformed block being distributed into group(s) of coefficients according to a predetermined grouping criterion and a predetermined path for reading the transformed blocks. According to the invention, such a method comprises, for each of the transformed blocks: a step of coding a series of coefficients corresponding to at least one group of coefficients, the series being determined on the basis of a type of series of coefficients that is selected from at least two possible types, and a step of inserting into the data stream a cue representative of the type of series of coefficients that is selected for the image or the sequence of images, or for a portion of the image. |
