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Post-processing Polygonal Voxel Data from Numerical Simulation

  • Many applications dealing with geometry acquisition and processing produce polygonal meshes that carry artifacts like discretization noise. While there are many approaches to remove the artifacts by smoothing or filtering the mesh, they are not tailored to any specific application subject to·certain restrictive objectives. We show how to incorporate smoothing schemes based on the general Laplacian approximation to satsify all those objectives at the same time for the results of flow simulation in the application field of car manufacturing. In the presented application setting the major restrictions come from the bounding volume of the flow simulation, the so-called installation space. In particular, clean mesh regions (without noise) should not be smoothed while at the same time the installation space must not be violated by the smoothing of the noisy mesh regions. Additionally, aliasing effects at the boundary between clean and noisy mesh regions must be prevented. To address the fact that the meshes come from flow simulation, the presented method is versatile enough to preserve their exact volume and to apply anisotropic filters using the flow information. Although the paper focuses on the results of a specific application, most of its findings can be transferred to different settings as well.

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Metadaten
Verfasserangaben:T. Bobach, G. Umlauf
URN (Permalink):urn:nbn:de:hbz:386-kluedo-49006
Schriftenreihe (Bandnummer):Interner Bericht des Fachbereich Informatik (332)
Dokumentart:Bericht
Sprache der Veröffentlichung:Englisch
Veröffentlichungsdatum (online):20.10.2017
Jahr der Veröffentlichung:2004
Veröffentlichende Institution:Technische Universität Kaiserslautern
Datum der Publikation (Server):20.10.2017
Seitenzahl:10
Fachbereiche / Organisatorische Einheiten:Fachbereich Informatik
DDC-Sachgruppen:0 Allgemeines, Informatik, Informationswissenschaft / 004 Informatik
Lizenz (Deutsch):Creative Commons 4.0 - Namensnennung, nicht kommerziell, keine Bearbeitung (CC BY-NC-ND 4.0)