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
TypeArticle accepté pour publication ou publié
Journal nameInternational Journal of Biomedical Imaging
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Abstract (EN)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.
Subjects / KeywordsContour Detection; Completion; Topological Gradient; Fast Marching Algorithms
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