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Affine-invariant geometric shape priors for region-based active contours

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3 Author(s)
Foulonneau, A. ; Lab. Regional des Ponts et Chaussees de Strasbourg ; Charbonnier, P. ; Heitz, F.

We present a new way of constraining the evolution of a region-based active contour with respect to a reference shape. Minimizing a shape prior, defined as a distance between shape descriptors based on the Legendre moments of the characteristic function, leads to a geometric flow that can be used with benefits in a two-class segmentation application. The shape model includes intrinsic invariance with regard to pose and affine deformations

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Pattern Analysis and Machine Intelligence, IEEE Transactions on  (Volume:28 ,  Issue: 8 )