| 摘要 |
The invention relates to an image processing method for reducing the noise in an image, including determination of three noisy temporal intensities relating to a current pixel in three successive images in a sequence, the image to be processed being the central image of the sequence. The method includes spatial and temporal filtering means (10, 20) which combine inputs (1, 2, 3) of temporal intensities, inputs (4, 5, 7) of spatial intensities, and at least one input (6) of a spatial and temporal and random intensity in order to supply the filtered intensity (40) for the current pixel of the processed image (Jt). The method involves a pseudo-temporal branch (10) which combines temporal inputs (1, 2, 3) with a spatial input (7) and, connected in parallel, a pseudo-spatial branch (20) which combines spatial inputs (1, 4, 5) with a temporal and recursive random input (6), the results (8, 9) of the two parallel branches being combined (140).
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