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COMPUTER GRAPHICS & GEOMETRY

Issue Year: 2006
Date: Spring
Volume: 8
Number: 1
Pages: 22-40

Article Name: LOCAL RECONSTRUCTION AND VISUALIZATION OF POINT-BFSED SURFACES USING SUBDIVISION SURFACES
Author: Tamy Boubekeur (France), Patrick Reuter (France), Christophe Schlick (France)
Address: Tamy Boubekeur
http://www.labri.fr/~boubek
University of Bordeaux, Bordeaux, France
 
Patrick Reuter
University of Bordeaux, Bordeaux, France
 
Christophe Schlick
University of Bordeaux, Bordeaux, France
Abstract:

Point-Based Surfaces, i.e. surfaces represented by discrete point sets which are either directly obtained by current 3D acquisition devices or converted from other surface representations, are well designed for multiresolution storage and transmission of complex objects. Unfortunately, visualization of point-based surfaces requires to develop specific rendering techniques (e.g. splatting) since point sets are not well adapted to existing graphics hardware which is optimized for polygonal meshes. In this paper, we propose an efficient reconstruction and visualization technique of point-based surfaces that takes full benefit from the entire optimized pipeline implemented in graphics hardware. The basic idea is to generate a set of independent meshes using a local 2D Delaunay triangulation of the point set. These meshes are then glued together to get a ``visual continuity'' by using a subdivision process.

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