NDLI: Simplifying flexible isosurfaces using local geometric measures

Content Provider	IEEE Xplore Digital Library
Author	Carr, H. Snoeyink, J. van de Panne, M.
Copyright Year	2004
Description	Author affiliation: Dept. of Comput. Sci., British Columbia Univ., Vancouver, BC, Canada (Carr, H.)
Abstract	The contour tree, an abstraction of a scalar field that encodes the nesting relationships of isosurfaces, can be used to accelerate isosurface extraction, to identify important isovalues for volume-rendering transfer functions, and to guide exploratory visualization through a flexible isosurface interface. Many real-world data sets produce unmanageably large contour trees which require meaningful simplification. We define local geometric measures for individual contours, such as surface area and contained volume, and provide an algorithm to compute these measures in a contour tree. We then use these geometric measures to simplify the contour trees, suppressing minor topological features of the data. We combine this with a flexible isosurface interface to allow users to explore individual contours of a dataset interactively.
Starting Page	497
Ending Page	504
File Size	488625
Page Count	8
File Format	PDF
ISBN	0780387880
DOI	10.1109/VISUAL.2004.96
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Isosurfaces Surface topography Computer science Skull Data visualization Rendering (computer graphics) Lakes Blood vessels Sockets Data mining topological simplification contour trees
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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