| 摘要 |
The invention concerns a method and a device (10, 20) for processing a video sequence (101) constituted by images composed of blocks of coefficients, and comprising the steps of: generating (511) first and second reconstructions (402 to 413) of a (same) first image, to obtain first and second reference images (517), the second reconstruction implementing, on a coefficient of a block, a different operation to that of the first reconstruction, predicting (505) a part (414, 415, 416) of said current image (401) on the basis of one of the reference images, wherein the second reconstruction comprises: the obtainment, for a block of the first image, values (Wi) calculated on the basis of the block coefficients and representing spatial frequency information; the selection of a coefficient according to these calculated values, to apply to it said different operation and obtain said second reference image.
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