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Morphological snakes

Morphological snakes,10.1109/CVPR.2010.5539900,Luis Alvarez,Luis Baumela,Pedro Henríquez,Pablo Márquez-Neila

Morphological snakes   (Citations: 1)
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We introduce a morphological approach to curve evolu- tion. The differential operators used in the standard PDE snake models can be approached using morphological op- erations on a binary level set. By combining the morpho- logical operators associated to the PDE components we achieve a new snakes evolution algorithm. This new solu- tion is based on numerical methods which are very simple, fast and stable. Moreover, since the level set is just a binary piecewise constant function, this approach does not require to estimate a contour distance function. To illustrate the re- sults obtained we present some numerical experiments on real images.
Conference: Computer Vision and Pattern Recognition - CVPR , pp. 2197-2202, 2010
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    • ...Through a morphological approach Alvarez et al. [1] proposed morphological snakes which just involved inf-sup operators...
    • ...μ ∈ [0, 1]. In this paper, we simply choose μ =0 .5...
    • ...Our implementation will combine them by alternating their discrete approaches like in [1], [20]...
    • ...In order to get the solution of the mean curvature motion for binary u, Alvare et al. [1] used operator composition instead of Ctu to obtain the following morphological operator:...
    • ...As in [1], we implement the morphological operator Ttu where g(I0)(x, y) >ε ...
    • ...Input: I, u0 : R 2 → [0, 1] is an initialization of u, δt, λ...
    • ...According to [1], we select four directions...
    • ...First we compare the experiments’ results of the proposed method with the CEN method [6] and morphological snakes [1] on the cameraman image in Fig. 1. Fig. 1(a) is the original image with the initial contour...

    Liyan Maet al. An unconstrained hybrid active contour model for image segmentation

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