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Improved algorithm for principal curvature estimation in point clouds due to optimized osculating circle fitting based on geometric algebra

 
: Getto, Roman; Hildenbrand, Dietmar

Baranoski, G. ; European Association for Computer Graphics -EUROGRAPHICS-:
WSCG 2011, 19th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Communication Papers Proceedings : January 31 - February 3, 2011, Plzen
Pilsen: University of West Bohemia, 2011
ISBN: 978-80-86943-82-4
pp.105-112
International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG) <19, 2011, Plzen, Czech Republic>
English
Conference Paper
Fraunhofer IGD ()
geometric algebra (GA); point cloud; curvature; Forschungsgruppe Geometric Algebra Computing (GACO)

Abstract
In this paper we introduce our improvements and innovations to an algorithm for the estimation of principal curvatures in point clouds. The major part of the improvement is achieved by the use of a new osculating circle fitting. In this paper, first of all, we explain the algorithm for Principal Curvature Estimation, as well as the previous osculating circle fitting. Then we present the new osculating circle fitting and an additional possibility of improving the results by a method, which adjusts some variables of the algorithm at runtime, to adapt the algorithm to the denseness of the particular point cloud. Furthermore, we present some results of the new methods. To complete this paper, we give a conclusion and an outlook.

: http://publica.fraunhofer.de/documents/N-154673.html