Dr. Roberto Grosso: Efficient Construction of Topologically Correct and Manifold Isosurfaces

Berliner Colloquium für wissenschaftliche Visualisierung

Montag, 9. Januar 2017, 17:15 Uhr
Ort: Zuse-Institut Berlin (ZIB)
Takustrasse 7, 14195 Berlin
Hörsaal (Rundbau, Erdgeschoss)

Dr. Roberto Grosso, FAU Friedrich-Alexander Universität Erlangen-Nürnberg

Abstract:

We present an algorithm to extract topologically correct and manifold isosurfaces from volume data. We show how to describe the geometry and topologically classify the inter- section of the level set with a reference unit cell. The solutions of three quadratic equations are used to correctly triangulate the level set withinthe cell satisfying the conditions imposed by the asymptotic decider.
This way the triangulation of isosurfaces across cell borders is manifold and topologically correct. Finally, we brieflydescribe a GPU implementation of the algorithm.