Discrete Multi-Material Interface Reconstruction for Volume Fraction Data.

Autor: Anderson, J. C., Garth, C., Duchaineau, M. A., Joy, K. I.
Předmět:
Zdroj: Computer Graphics Forum; May2008, Vol. 27 Issue 3, p1015-1022, 8p, 1 Color Photograph, 5 Diagrams, 1 Graph
Abstrakt: Material interface reconstruction (MIR) is the task of constructing boundary interfaces between regions of homogeneous material, while satisfying volume constraints, over a structured or unstructured spatial domain. In this paper, we present a discrete approach to MIR based upon optimizing the labeling of fractional volume elements within a discretization of the problem's original domain. We detail how to construct and initially label a discretization, and introduce a volume conservative swap move for optimization. Furthermore, we discuss methods for extracting and visualizing material interfaces from the discretization. Our technique has significant advantages over previous methods: we produce interfaces between multiple materials that are continuous across cell boundaries for time-varying and static data in arbitrary dimension with bounded error. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index