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Proceedings Paper

Efficient volume rendering using octree space subdivision
Author(s): Peter Krumhauer; Michael Tsygankov; Christian Reich; Anton Evgrafov
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Paper Abstract

This paper describes a discrete ray-tracing algorithm, which employs the adaptive hierarchical spatial subdivision (octree) technique for 3D uniform binary voxel space representation. The binary voxel space contains voxels of two kinds: 'surface' and 'non-surface.' Surface voxels include property information like the surface normal and color. The usage of octrees dramatically reduces the memory amount required to store 3D models. The average compression ratio is in the range between 1:24 up to 1:50 compared to uncompressed voxels. A fast ray casting algorithm called BOXER was developed, which allows rendering 256 X 256 X 256 and 512 X 512 X 512 volumes nearly in real-time on standard Intel-based PCs.

Paper Details

Date Published: 25 March 1999
PDF: 9 pages
Proc. SPIE 3643, Visual Data Exploration and Analysis VI, (25 March 1999); doi: 10.1117/12.342837
Show Author Affiliations
Peter Krumhauer, Univ. of Applied Sciences and Softgraph International GmbH (Germany)
Michael Tsygankov, Softgraph International GmbH (Russia)
Christian Reich, Softgraph International GmbH (Germany)
Anton Evgrafov, Softgraph International GmbH (Russia)

Published in SPIE Proceedings Vol. 3643:
Visual Data Exploration and Analysis VI
Robert F. Erbacher; Philip C. Chen; Craig M. Wittenbrink, Editor(s)

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