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Reducing interpolation artifacts by globally fairing contours

 
: Bertram, M.; Hagen, H.

Möller, T. (Hrsg.); Hamann, B. (Hrsg.); Russel, R. (Hrsg.):
Mathematical foundations of scientific visualization, computer graphics, and massive data exploration : with 15 tables
Berlin: Springer, 2009 (Mathematics and visualization)
ISBN: 978-3-540-25076-0
EISBN: 978-3-540-49926-8
DOI: 10.1007/978-3-540-49926-8
S.257-269
Englisch
Aufsatz in Buch
Fraunhofer ITWM ()

Abstract
We propose an iterative fairing method for scalar fields reducing the artifacts of bi- and trilinear interpolation. Our method reconstructs a two-dimensional scalar field from interpolation constraints optimizing the smoothness of its contours (isolines) based on vari- ational principles. It generalizes to the trivariate case and is used to increase the quality of data sets employing a cubic B-spline representation. In contrast to filtering methods, our ap- proach preserves the level of detail, enhancing features supported by the data while reducing interpolation artifacts.

: http://publica.fraunhofer.de/dokumente/N-150045.html