A Low-Cost Memory Architecture For PCI-Based Interactive Ray Casting

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Date
1999
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
In this paper we present a low-cost memory architecture running at 100 MHz which is suited for any PCI-based volume rendering accelerator using the ray-casting approach. Current SDRAM technology, parallel access to all voxels required for trilinear interpolation, a cubic addressing scheme, and a buffering mechanism accommodating memory latency are applied to achieve high frame-rates. A total of four off-the-shelf standard DIMM modules are required enabling up to 9 Hz (averaged over a representative set of views) for datasets of 2563 voxels, using early ray termination as the only algorithmic optimization. The presented memory architecture is a good balance of cost versus feasibility on a standard PC1 card - accepting data replication - and will be used for the VIZARD II ray casting accelerator.
Description

        
@inproceedings{
:10.2312/EGGH/EGGH99/007-014
, booktitle = {
SIGGRAPH/Eurographics Workshop on Graphics Hardware
}, editor = {
A. Kaufmann and W. Strasser and S. Molnar and B.- O. Schneider
}, title = {{
A Low-Cost Memory Architecture For PCI-Based Interactive Ray Casting
}}, author = {
Doggett, Michael
and
Meißner, Michael
and
Kanust, Urs
}, year = {
1999
}, publisher = {
The Eurographics Association
}, ISSN = {
1727-3471
}, ISBN = {
1-58113-170-4
}, DOI = {
/10.2312/EGGH/EGGH99/007-014
} }
Citation