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  Compression of 2D vector fields under guaranteed topology preservation

Theisel, H., Rössl, C., & Seidel, H.-P. (2003). Compression of 2D vector fields under guaranteed topology preservation. In EUROGRAPHICS 2003 (EUROGRAPHICS-03): the European Association for Computer Graphics, 24th Annual Conference (pp. 333-342). Oxford, UK: Blackwell.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-2C98-B Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-2C9A-7
Genre: Conference Paper

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 Creators:
Theisel, Holger1, Author           
Rössl, Christian1, Author           
Seidel, Hans-Peter1, Author           
Brunet, Pere, Editor
Fellner, Dieter W., Editor
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1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              

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 Abstract: In this paper we introduce a new compression technique for 2D vector fields which preserves the complete topology, i.e., the critical points and the connectivity of the separatrices. As the theoretical foundation of the algorithm, we show in a theorem that for local modifications of a vector field, it is possible to decide entirely by a local analysis whether or not the global topology is preserved. This result is applied in a compression algorithm which is based on a repeated local modification of the vector field - namely a repeated edge collapse of the underlying piecewise linear domain. We apply the compression technique to a number of data sets with a complex topology and obtain significantly improved compression ratios in comparison to pre-existing topology-preserving techniques.

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Language(s): eng - English
 Dates: 2004-07-122003
 Publication Status: Issued
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 Identifiers: eDoc: 202046
Other: Local-ID: C125675300671F7B-21FE90C7C981A5E3C1256D050047DB4B-Theisel:2003:CVFGTP
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Title: EUROGRAPHICS 2003
Place of Event: Granada, Spain
Start-/End Date: 2003-09-01 - 2003-09-05

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Title: EUROGRAPHICS 2003 (EUROGRAPHICS-03) : the European Association for Computer Graphics, 24th Annual Conference
Source Genre: Proceedings
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Publ. Info: Oxford, UK : Blackwell
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 333 - 342 Identifier: -

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Title: Computer Graphics Forum
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