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DOI : 10.1016/j.cag.2009.03.016

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Computers and Graphics 33, 3 (2009) 312-320

Variational implicit surface meshing

Arnaud Gelas 1, 2, Sébastien Valette 3, Rémy Prost 3, Wieslaw L Nowinski 2

(06/2009)

In this paper, we propose a new algorithm to mesh implicit surfaces which produces meshes both with a good triangle aspect ratio as well as a good approximation quality. The number of vertices of the output mesh is defined by the end-user. For this goal, we perform a two-stage processing : an initialization step followed by an iterative optimization step. The initialization step consists in capturing the surface topology and allocating the vertex budget. The optimization algorithm is based on a variational vertices relaxation and triangulation update. In addition a gradation parameter can be defined to adapt the mesh sampling to the curvature of the implicit surface. We demonstrate the efficiency of the approach on synthetic models as well as real-world acquired data, and provide comparisons with previous approaches.

1 :	Harvard Medical School (HMS)
	Harvard University
2 :	Biomedical Imaging Lab
	Agency for Science, Technology and Research
3 :	Centre de recherche et d'applications en traitement de l'image et du signal (CREATIS)
	INSERM : U630 – Université Claude Bernard - Lyon I – Institut National des Sciences Appliquées (INSA) - Lyon – École Supérieure Chimie Physique Électronique de Lyon – CNRS : UMR5515

Domaine

:

Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image

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Contributeur : Sébastien Valette <>

Soumis le : Dimanche 7 Novembre 2010, 18:01:41

Dernière modification le : Mardi 9 Novembre 2010, 01:36:17