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The topological gradient method for semi-linear problems and application to edge detection and noise removal.

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Academic year: 2021

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Table 1: Summary of the topological gradient expressions
Figure 1: Comparison of (14) and (15) for different values of γ with the MS edge detection (36) and the Canny edge detector for an initial speckled image (L = 6) containing mainly isotropic small structures.
Figure 3: Comparison of (14) and (15) with the MS edge detection (36) and the Canny edge detector for a real SAR image.
Figure 4: Comparison of the restored versions (32), (36) and (37) for a real SAR image (Zoom on Fig
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