Website Links

Tomographic Code

For performing the forward or adjoint Radon transform.

Matlab radon() and iradon(). 2D only; can't use arbitrary sets of angles. Fast C/MEX code, but the operators are mismatched (pixel-based forward operator and ray-based adjoint operator), which introduces artificial high frequency noise.
Potts nonuniform FFT. The nonuniform FFT is more general than the Radon transform, but the Fourier Slice Theorem can be used to convert the tomographic problem into a NUFFT. The curse of dimensionality imposes a memory limitation on 3D or 4D implementations, and there can be new artifacts due to the Fourier domain interpolation kernel.
Jeff Fessler's Image reconstruction toolbox (U Michigan). Excellent Radon transform and NUFFT code, mostly 2D and some 3D.
Peter Toft's PhD thesis and programs. Pretty decent code, but I couldn't get it working under Windows.

There are only a relatively small number of EPRI research groups. Sorry if I missed anyone. Alphabetical order.

Aharon Blank et al. at Technion - Israel Institute of Technology.
Gallez Bernard et al. at Universite catholique de Louvain.
Murali Krishna Cherukuri et al. at National Cancer Institute.
Gareth Eaton et al. at University of Denver.
Howard J. Halpern et al. at University of Chicago.
Hiroshi Hirata et al. at Hokkaido University
James S. Hyde et al. at Medical College of Wisconsin
Kev Minullinovich Salikhov et al. at Zavoisky Physical-Technical Institute of the Kazan Scientific Center of the Russian Academy of Sciences
Harold Swartz et al. at Dartmouth University
Ralph Weber et al. at Bruker
Jay Zweier et al. at the Ohio State University

Conferences and societies.