Geometric Feature Estimators for Noisy Discrete Surfaces

Abstract. We present in this paper robust geometric feature estimators on the border of a possibly noisy discrete object. We introduce the notion of patch centered at a point of this border. Thanks to a width parameter, attached to a patch, the noise on the border of the discrete object can be considered, and an extended flat neighborhood of a border point is computed. Stable geometric features are then extracted around this point. A normal vector estimator is proposed as well as a detector of convex and concave parts on the border of a discrete object.

• Type: Conference
• Year: 2008
• Where: DGCI
• Authors: Laurent Provot, Isabelle Debled-Rennesson
• Keywords: DGCI 2008, Discrete Geometry, Discrete Object, Geometric Features, Noisy Discrete Object