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Proceedings Paper

Accelerating 3D cone beam T-FDK algorithm on commodity PC graphics hardware
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Paper Abstract

T-FDK algorithm is an FDK-type cone beam CT reconstruction algorithm. Like other 3D reconstruction algorithms, T-FDK is time consuming because of the large amount of data processing involved. One solution to this problem is utilizing PC graphics boards (GPU) for acceleration. The recent dramatic evolution of GPU makes this method come to the practical track. In this paper, we use a new floating point GPU to speedup the 3D T-FDK algorithm that is different from original FDK method in structure. Because floating point pipelines are slower than hardwired 8-bit texture mapping facilities but are more precise numerically, we balance the reconstruction speed and quality by using both of them. Using nVIDIA GeForce 6800 GT, our GPU accelerated T-FDK method gives a speed 27.612 times faster than a software implementation.

Paper Details

Date Published: 2 March 2006
PDF: 8 pages
Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61424P (2 March 2006);
Show Author Affiliations
Zhisheng Dai, Tsinghua Univ. (China)
Zhiqiang Chen, Tsinghua Univ. (China)
Yuxiang Xing, Tsinghua Univ. (China)
Li Zhang, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 6142:
Medical Imaging 2006: Physics of Medical Imaging
Michael J. Flynn; Jiang Hsieh, Editor(s)

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