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ABSTRACT
<p><b>Abstract</b>—Two important tools for manipulating polygonal models are simplification and repair and we present voxel-based methods for performing both of these tasks. We describe a method for converting polygonal models to a volumetric representation in a way that handles models with holes, double walls, and intersecting parts. This allows us to perform polygon model repair simply by converting a model to and from the volumetric domain. We also describe a new topology-altering simplification method that is based on 3D morphological operators. Visually unimportant features such as tubes and holes may be eliminated from a model by the <it>open</it> and <it>close</it> morphological operators. Our simplification approach accepts polygonal models as input, scan converts these to create a volumetric description, performs topology modification, and then converts the results back to polygons. We then apply a topology-preserving polygon simplification technique to produce a final model. Our simplification method produces results that are everywhere manifold.</p>
INDEX TERMS
Mesh simplification, mesh repair, volumetric models, morphological operators.
CITATION

G. Turk and F. S. Nooruddin, "Simplification and Repair of Polygonal Models Using Volumetric Techniques," in IEEE Transactions on Visualization & Computer Graphics, vol. 9, no. , pp. 191-205, 2003.
doi:10.1109/TVCG.2003.10002
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