Uncertainty in Isosurfaces
Abstract:
Various stages of data processing, including the modeling of scattered
volumetric data and the algorithms used to render isosurfaces, can
introduce uncertainty or error in the final visualization. Although
researchers are aware of the errors that arise during data processing,
there still remains no visual framework for evaluating uncertainty in
isosurfaces.
This paper focuses on the comparison of isosurfaces
through UISURF, a visualization system for displaying
uncertainty in isosurfaces.
UISURF provides visual and statistical information to aid in the
evaluation and comparison of isosurfaces and the algorithms used to
generate them. Uncertainty is visualized through a series of
techniques: overlay, pseudo-coloring, transparency, glyphs, animation,
and sonification.
Results are presented for comparing isosurfaces
generated from different algorithms
and those obtained by using
different volumetric interpolation models.
Keywords:
Isosurfaces, uncertainty, visualization, interpolation,
marching cubes.
Paper:
This paper has appeared in the Computer Graphics and Imaging 1999 Conference.
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Last modified: October 8, 1995