View-Dependent Extraction of Contours with Distance Transforms for Adaptive Polygonal for adaptive polygonal Mesh-Simplification Mata Susana Pastor Luis Rodríguez Angel During decades Distance Transforms have proven to be useful for many image processing applications, and more recently, they have started to be used in computer graphics environments. The goal of this paper is to propose a new technique based on Distance Transforms for detecting mesh elements which are close to the objects' external contour (from a given point of view), and using this information for weighting the approximation error which will be tolerated during the mesh simplification process. The obtained results are evaluated in two ways: visually and using an objective metric that measures the geometrical difference between two polygonal meshes. Computational Geometry and Object Modelling Picture and Image Generation Three Dimensional Graphics and Realism 004 periodical academic journal JVRB - Journal of Virtual Reality and Broadcasting 3(2006) 4 2007 1860-2037 urn:nbn:de:0009-6-7643 10.20385/1860-2037/3.2006.4 mata2007