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Authors: Florian Schulze ; Katja Bühler and Markus Hadwiger

Affiliation: VRVis Research Center for Virtual Reality and Visualization, Austria

Keyword(s): Deformation, Resampling, Volume Rendering.

Related Ontology Subjects/Areas/Topics: Animation and Simulation ; Animation of Particle Systems ; Computer Vision, Visualization and Computer Graphics ; Geometry and Modeling ; Physics-Based Modeling ; Real-Time Visual Simulation ; Rendering ; Volume Rendering

Abstract: This paper presents an integrated approach for interactive direct volume deformation and simultaneous visualization. The fundamental requirement is that interactive performance without pre-processing must be achieved for large volume data, where at any time up to one million elements participate in a deformation that is applied interactively by picking and dragging in the 3D view. Current physically-based approaches are still one or two orders of magnitude away from this goal. In contrast, our approach extends the non-physical ChainMail algorithm and combines it with on-the-fly resampling and GPU ray-casting. Special transfer functions assign material properties depending on volume density. The affected subvolume is deformed and resampled onto a rectilinear grid on the CPU, and updates the volume on the GPU where it is rendered using ray-casting. While the deformation is already being displayed, its quality is simultaneously refined via an iterative relaxation procedure executed in a parallel thread. (More)

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Paper citation in several formats:
Schulze, F.; Bühler, K. and Hadwiger, M. (2007). INTERACTIVE DEFORMATION AND VISUALIZATION OF LARGE VOLUME DATASETS. In Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 1: GRAPP; ISBN 978-972-8865-72-6; ISSN 2184-4321, SciTePress, pages 39-46. DOI: 10.5220/0002082200390046

@conference{grapp07,
author={Florian Schulze. and Katja Bühler. and Markus Hadwiger.},
title={INTERACTIVE DEFORMATION AND VISUALIZATION OF LARGE VOLUME DATASETS},
booktitle={Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 1: GRAPP},
year={2007},
pages={39-46},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002082200390046},
isbn={978-972-8865-72-6},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 1: GRAPP
TI - INTERACTIVE DEFORMATION AND VISUALIZATION OF LARGE VOLUME DATASETS
SN - 978-972-8865-72-6
IS - 2184-4321
AU - Schulze, F.
AU - Bühler, K.
AU - Hadwiger, M.
PY - 2007
SP - 39
EP - 46
DO - 10.5220/0002082200390046
PB - SciTePress

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