Curvatures estimation on triangular mesh

Curvatures are important geometric attributes of surfaces. There are many applications that require as a first step the accurate estimation of curvatures at arbitrary vertices on a triangulated surface. Chen and Schmitt (1992) and Taubin (1995) presented two simple methods to estimate principal curv...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2005-08, Vol.6 (S1), p.128-136
Main Authors: Dong, Chen-shi, Wang, Guo-zhao
Format: Article
Language:English
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Summary:Curvatures are important geometric attributes of surfaces. There are many applications that require as a first step the accurate estimation of curvatures at arbitrary vertices on a triangulated surface. Chen and Schmitt (1992) and Taubin (1995) presented two simple methods to estimate principal curvatures. They used circular arcs to approximate the normal curvature. We find this may cause large error in some cases. In this paper, we describe a more accurate method to estimate the normal curvature, and present a novel algorithm to estimate principal curvatures by simplifying the Chen and Schmitt's method. Some comparison results are also shown in this paper.
ISSN:1673-565X
1009-3095
1862-1775
DOI:10.1631/jzus.2005.AS0128