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Proceedings Paper

Calculations of a SPECT projection operator on a graphical processing unit
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Paper Abstract

In this paper we explore the capabilities of a graphical processing unit (GPU) for the fast calculation of a tomographic projection operator in content-adaptive mesh models (CAMM). We explore the use of two distinct methods, ray-tracing and mesh element projection, both implemented on classical computers (CPU) and GPU. Both methods have already been proposed in the literature for 2D and 3D emission tomography (EM) image reconstruction using a CAMM, however, there was no clear comparison between both methods in terms of computational efficiency, which is an aim of this paper.

Paper Details

Date Published: 9 March 2012
PDF: 6 pages
Proc. SPIE 8313, Medical Imaging 2012: Physics of Medical Imaging, 83133W (9 March 2012); doi: 10.1117/12.911951
Show Author Affiliations
Francesc Massanes, Illinois Institute of Technology (United States)
Jovan G. Brankov, Illinois Institute of Technology (United States)


Published in SPIE Proceedings Vol. 8313:
Medical Imaging 2012: Physics of Medical Imaging
Norbert J. Pelc; Robert M. Nishikawa; Bruce R. Whiting, Editor(s)

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