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Institut für Visualisierung und Interaktive Systeme |
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Joachim E. Vollrath |
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- Feature extraction in tensor fields
- Isocontouring on higher order finite element meshes
- Identification, extraction and visualization of flow
features, such as vortex core lines.
- Visualiation of large and/or time-varying volume vatasets
- Software development for commercial flow visualization tools, in
collaboration with science-computing ag, Tübingen
- Volume rendering on adaptive cartesian grids (AMR)
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Current research: feature extraction in tensor fields. Images are from the
final thesis project of my student Marcel Hlawatsch.
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Point cloud rendering for isocontouring in higher
order finite element meshes, from the publication A Fast GPU Particle
System Approach for Isocontouring on hp-Adaptive Finite Element Meshes.
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Vortex core line extraction in flows, from the publication Topology-Preserving lambda2-based Vortex Core Line Detection for Flow Visualization.
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Direct volume rendering and isosurface raycasting in PowerVIZ,
from the publication Employing Complex GPU Data Structures for the Interactive Visualization of Adaptive Mesh Refinement Data.
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High quality volume renderings from the publication A Generic Software
Framework for the GPU Volume Rendering Pipeline. Full source code of
this application is available below.
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Summer Term '08
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Winter Term '07/'08
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Summer Term '07
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Winter Term '06/'07
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Summer Term '06
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Advised and ongoing student theses
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2008
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C. A. Pagot, J. E. Vollrath, J. L. D. Comba, D. Weiskopf.
A Fast GPU Particle System Approach for Isocontouring on hp-Adaptive Finite Element Meshes.
IEEE VisWeek 2008
October 19-24 in Columbus, Ohio, USA
to appear
[ps] |
[pdf] |
[bibtex]
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T. Schafhitzel, J. Vollrath, J. Gois, D. Weiskopf, A. Castelo, T. Ertl.
Topology-Preserving lambda2-based Vortex Core Line Detection for Flow Visualization.
EG/IEEE TCVG Symposium on Visualization (EUROVIS '08)
May 26-28 in Eindhoven, The Netherlands
[ps] |
[pdf] |
[bibtex]
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2006
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J. E. Vollrath, T. Schafhitzel, and T. Ertl.
Employing Complex GPU Data Structures for the Interactive Visualization of Adaptive Mesh Refinement Data.
International Workshop on Volume Graphics (VG'06)
Boston, Massachusetts, U.S.A., pp. 55-58, 2006
[ps] |
[pdf] |
[bibtex]
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2005
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J. E. Vollrath, D. Weiskopf, and T. Ertl.
A Generic Software Framework for the GPU Volume Rendering Pipeline
VISION, MODELING, AND VISUALIZATION 2005 (VMV'05)
Erlangen, Bavaria, Germany, pp. 391-398, 2005
[pdf] |
[bibtex]
full source code (req. DX9 SDK) | head dataset | engine dataset | foot dataset | bonsai dataset | more datasets
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