GPU-based parallel-beam and cone-beam forward- and backprojection using CUDA

Michael Knaup, Sven Steckmann, Marc Kachelriess
Institute of Medical Physics (IMP), University of Erlangen-Nurnberg, Henkestr. 91, 91052, Germany
IEEE Nuclear Science Symposium Conference Record, 2008. NSS ’08


   title={Gpu-based parallel-beam and cone-beam forward-and backprojection using cuda},

   author={Knaup, M. and Steckmann, S. and Kachelriess, M.},

   booktitle={Nuclear Science Symposium Conference Record, 2008. NSS’08. IEEE},





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Analytic and iterative tomographic image reconstruction suffers from the time-consuming forward- and back-projection steps. We recently presented a set of acceleration techniques that improve the performance of forward- and backprojection on CPU (central processing unit) and CBE (cell broadband engine) -based platforms compared to straight-forward implementations by several orders of magnitude.
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