| 摘要 |
The invention concerns iterative binary coding/decoding for a document comprising values to code or to decode. For the coding, after having created (400) a dictionary on the basis of the values to code, differences between consecutive elements of the dictionary created are calculated (440). These creating and calculating steps are repeated (460) by substituting the values to code by differences between the values of the dictionary created previously. The values of the document are then coded (480) on the basis of said created dictionaries. For the decoding, after having obtained (610, 640) a set of values representing differences between elements of a dictionary on the basis of coded values, elements of the dictionary are calculated (650) on the basis of said values obtained. These steps are repeated by substituting the values representing differences by the values of the dictionary calculated previously (630). The values are then decoded (670) on the basis of said calculated dictionaries.
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