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Issue No. 02 - February (2011 vol. 17)
ISSN: 1077-2626
pp: 182-191
Suthambhara Nagaraj , Indian Institute of Science, Malleshwaram, Bangaluru
Vijay Natarajan , Indian Institute of Science, Malleshwaram, Bangaluru
We introduce a variation density function that profiles the relationship between multiple scalar fields over isosurfaces of a given scalar field. This profile serves as a valuable tool for multifield data exploration because it provides the user with cues to identify interesting isovalues of scalar fields. Existing isosurface-based techniques for scalar data exploration like Reeb graphs, contour spectra, isosurface statistics, etc., study a scalar field in isolation. We argue that the identification of interesting isovalues in a multifield data set should necessarily be based on the interaction between the different fields. We demonstrate the effectiveness of our approach by applying it to explore data from a wide variety of applications.
Isosurface statistics, isocontours, variation density profile, persistence, multifield data.

V. Natarajan and S. Nagaraj, "Relation-Aware Isosurface Extraction in Multifield Data," in IEEE Transactions on Visualization & Computer Graphics, vol. 17, no. , pp. 182-191, 2010.
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