Contour Detection and Completion for Inpainting and Segmentation Based on Topological Gradient and Fast Marching Algorithms
Auroux, Didier; Cohen, Laurent D.; Masmoudi, Mohamed (2011), Contour Detection and Completion for Inpainting and Segmentation Based on Topological Gradient and Fast Marching Algorithms, International Journal of Biomedical Imaging, 2011, p. Article ID 592924, 20 pages. http://dx.doi.org/10.1155/2011/592924
Type
Article accepté pour publication ou publiéDate
2011Nom de la revue
International Journal of Biomedical ImagingVolume
2011Éditeur
Hindawi
Pages
Article ID 592924, 20 pages
Identifiant publication
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We combine in this paper the topological gradient, which is a powerful method for edge detection in image processing, and a variant of the minimal path method in order to find connected contours. The topological gradient provides a more global analysis of the image than the standard gradient and identifies the main edges of an image. Several image processing problems (e.g., inpainting and segmentation) require continuous contours. For this purpose, we consider the fast marching algorithm in order to find minimal paths in the topological gradient image. This coupled algorithm quickly provides accurate and connected contours. We present then two numerical applications, to image inpainting and segmentation, of this hybrid algorithm.Mots-clés
Contour Detection; Completion; Topological Gradient; Fast Marching AlgorithmsPublications associées
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