T-map: a topological approach to visual exploration of time-varying volume data

Authors:
Issei Fujishiro;Rieko Otsuka;Shigeo Takahashi;Yuriko Takeshima
Affiliations:
Tohoku University, Sendai, Japan;Hitachi, Ltd., Tokyo, Japan;The University of Tokyo, Chiba, Japan;Tohoku University, Sendai, Japan
Venue:
ISHPC'05/ALPS'06 Proceedings of the 6th international symposium on high-performance computing and 1st international conference on Advanced low power systems
Year:
2005

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Abstract

The rapid advance in high performance computing and measurement technologies has recently made it possible to produce a stupendous amount of time-varying volume datasets in a variety of disciplines. However, there exist a few known visual exploration tools that allow us to investigate the core of their complex dynamics effectively. In this paper, our previous approach to topological volume skeletonization is extended to capture the topological features of large-scale time-varying volume datasets. A visual exploration tool, termed T-map, is presented, where pixel-oriented information visualization techniques are deployed so that the user can identify partial 4D spatiotemporal domains with characteristic changes in a topological sense, prior to detailed and comprehensible volume visualization. A case study with datasets from atomic collision research is performed to illustrate the feasibility of the proposed tool.