Topology exploration with hierarchical landscapes

Dogan Demir, Kenes Beketayev, Gunther H. Weber, Peer Timo Bremer, Valerio Pascucci, Bernd Hamann

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Topological landscapes have been proposed as a visual metaphor for contour trees that does not require an understanding of the theory involved in defining contour trees. The idea is to create a representative terrain with the same topological structure as a given contour tree. This representation exploits the natural human ability to interpret topography and results in an intuitive visualization of otherwise abstract information. However, topological landscapes still suffer from some of the same limitations as traditional contour tree visualization. Most notable is the fact that for complex functions landscapes can quickly become highly complex, exceeding the limits of human comprehension as well as the available computing resources. To address this challenge, we propose a new framework for the dynamic creation and visualization of hierarchical topological landscapes. Our system provides an interactive visualization of complex functions by utilizing a hierarchical decomposition of the contour tree as well as focus+context type interactions. For three dimensional data, we link the landscape display to flexible isosurface extraction in order to correlate terrain features with their corresponding three dimensional counterparts. We demonstrate the utility and versatility of our approach on a variety of both low and high dimensional data sets.

Original languageEnglish
Title of host publicationProceedings - WASA 2012
Subtitle of host publicationWorkshop at SIGGRAPH Asia 2012
Pages147-154
Number of pages8
DOIs
Publication statusPublished - 2012
EventWorkshop at SIGGRAPH Asia 2012, WASA 2012 - Singapore, Singapore
Duration: Nov 26 2012Nov 27 2012

Publication series

NameProceedings - WASA 2012: Workshop at SIGGRAPH Asia 2012

Other

OtherWorkshop at SIGGRAPH Asia 2012, WASA 2012
CountrySingapore
CitySingapore
Period11/26/1211/27/12

Keywords

  • graphics user interface
  • scalar field visualization
  • topological landscapes

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition

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