| 摘要 |
In order to code a multidimensional digital picture signal by decomposition into frequency sub-bands, wherein the decomposition into frequency sub-bands uses a filtering according to a plurality of geometric orientations: a picture at a resolution lower than the resolution of the digital picture signal is obtained; the edges of the picture at the lower resolution are located; and orientation values are attributed to the data of the digital picture signal as a function of the result of the edge location step.
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