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Proceedings Paper

Innovative volume rendering using 3D texture mapping
Author(s): Sheng-Yih Guan; Richard G. Lipes
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Paper Abstract

Most texture mapping involves a backward projection which maps from screen space back into the texture data. Bilinear/trilinear interpolation is usually used to sample data in the 2D/3D textures. To accelerate texture mapping, traditional graphics hardware requires a complete copy of the texture image at each parallel computation node to allow all nodes to operate in parallel. This paper introduces a new backward projection approach for rendering volume data, treating the volume as a 3D texture. It employs an innovative parallelization scheme in which a computation node operates on a subvolume, thereby avoiding the need to store the whole volume at each node. This approach has been implemented on the Kubota Kenai Denali workstation, a high performance system for imaging and 3D graphics. It currently supports functions for maximum intensity projection, multiplanar reformatting, volume resampling, ray sum, and isosurface rendering. Progressive refinement schemes can be utilized to reduce sampling rate and to realize interactive rendering speeds.

Paper Details

Date Published: 1 May 1994
PDF: 11 pages
Proc. SPIE 2164, Medical Imaging 1994: Image Capture, Formatting, and Display, (1 May 1994); doi: 10.1117/12.174021
Show Author Affiliations
Sheng-Yih Guan, Kubota Pacific Computer, Inc. (United States)
Richard G. Lipes, Kubota Pacific Computer, Inc. (United States)

Published in SPIE Proceedings Vol. 2164:
Medical Imaging 1994: Image Capture, Formatting, and Display
Yongmin Kim, Editor(s)

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