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    Skeleton Extraction via Anisotropic Heat Flow


    Direkoglu, Cem and Dahyot, Rozenn and Manzke, Michael (2010) Skeleton Extraction via Anisotropic Heat Flow. British Machine Vision Conference Proceedings. pp. 1-12.

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    Abstract

    We introduce a novel skeleton extraction algorithm in binary and gray-scale images, based on the anisotropic heat diffusion analogy. We propose to diffuse image in the dominance of direction normal to the feature boundaries and also allow tangential diffusion to contribute slightly. The proposed anisotropic diffusion provides a high quality medial function in the image, since it removes noise and preserves prominent curvatures of the shape along the level-sets (skeleton locations). Then the skeleton strength map, which provides the likelihood to be a skeleton point, is obtained by computing the mean curvature of level-sets. The overall process is completed by non-maxima suppression and hysteresis thresholding to obtain thin and binary skeleton. Results indicate that this approach has advantages in handling noise in the image and in obtaining smooth shape skeleton because of the directional averaging inherent of our new anisotropic heat flow.

    Item Type: Article
    Keywords: Skeleton; Extraction; Anisotropic; Heat Flow;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 15283
    Identification Number: https://doi.org/10.5244/C.24.61
    Depositing User: Rozenn Dahyot
    Date Deposited: 19 Jan 2022 12:31
    Journal or Publication Title: British Machine Vision Conference Proceedings
    Publisher: British Machine Vision Association 2010
    Refereed: Yes
    URI:

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