Iterative tomographic image reconstruction using Fourier-based forward and back- projectors (2004)
| Venue: | IEEE Trans. Med. Imag |
| Citations: | 17 - 2 self |
BibTeX
@ARTICLE{Fessler04iterativetomographic,
author = {Jeffrey A. Fessler},
title = {Iterative tomographic image reconstruction using Fourier-based forward and back- projectors},
journal = {IEEE Trans. Med. Imag},
year = {2004},
volume = {23},
pages = {412}
}
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Abstract
Fourier-based reprojection methods have the potential to reduce the computation time in iterative tomographic image reconstruction. Interpolation errors are a limitation of Fourier-based reprojection methods. We apply a min-max interpolation method for the nonuniform fast Fourier transform (NUFFT) to minimize the interpolation errors. Numerical results show that the min-max NUFFT approach provides substantially lower approximation errors in tomographic reprojection and backprojection than conventional interpolation methods.
