Ds. Meek et Dj. Walton, On surface normal and Gaussian curvature approximations given data sampledfrom a smooth surface, COMP AID G, 17(6), 2000, pp. 521-543
Approximations to the surface normal and to the Gaussian curvature of a smo
oth surface are often required when the surface is defined by a set of disc
rete points. The accuracy of an approximation can be measured using asympto
tic analysis. The errors of several approximations to the surface normal an
d to the Gaussian curvature are compared. (C) 2000 Elsevier Science B.V. Al
l rights reserved.