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TitleDiscrete Multi-Material Interface Reconstruction for Volume Fraction Data (Article)
inComputer Graphics Forum (Proc. of Eurographics/IEEE-VGTC Symposium on Visualization 2008)
Author(s) John C. Anderson, Christoph Garth, Mark A. Duchaineau, Ken Joy
Year 2008
Volume27
Number3
URLhttp://graphics.cs.ucdavis.edu/~cobalt
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Abstract 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 \emph{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.
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