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Combining Topological Simplification and Topology Preserving Compression for 2D Vector Fields

MPG-Autoren
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Theisel,  Holger
Computer Graphics, MPI for Informatics, Max Planck Society;

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Rössl,  Christian
Computer Graphics, MPI for Informatics, Max Planck Society;

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Seidel,  Hans-Peter
Computer Graphics, MPI for Informatics, Max Planck Society;

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Zitation

Theisel, H., Rössl, C., & Seidel, H.-P. (2003). Combining Topological Simplification and Topology Preserving Compression for 2D Vector Fields. In 11th Pacific Conference on Computer Graphics and Applications (PG-03) (pp. 419-423). Los Alamitos, USA: IEEE.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-2C8C-7
Zusammenfassung
Topological simplification techniques and topology preserving compression approaches for 2D vector fields have been developed quite independently of each other. In this paper we propose a combination of both approaches: a vector field should be compressed in such a way that its important topological features (both critical points and separatrices) are preserved while its unimportant features are allowed to collapse and disappear. To do so, a number of new solutions and modifications of pre-existing algorithms are presented. We apply the approach to a flow data set which, is both large and topologically complex, and achieve significant compression ratios there.