EM-MAP algorithm versus ARTUR: theoretical and practical comparisons

Pierre Malick Koulibaly; P. Charbonnier; Michel Barlaud; J. Darcourt; Laure Blanc-Feraud

doi:10.1117/12.179260

8 July 1994 EM-MAP algorithm versus ARTUR: theoretical and practical comparisons

Pierre Malick Koulibaly, P. Charbonnier, Michel Barlaud, J. Darcourt, Laure Blanc-Feraud

Proceedings Volume 2299, Mathematical Methods in Medical Imaging III; (1994) https://doi.org/10.1117/12.179260
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

A new algorithm for SPECT reconstruction called ARTUR is proposed, which uses a Bayesian approach toward the maximum a posteriori estimator. It preserves discontinuities in the image by the use of regularization. We propose to compare it with one of the regularized version of the iterative method commonly employed in SPECT i.e. the maximum a posteriori expectation maximization one step late method, developed by Green.

Citation Download Citation

Pierre Malick Koulibaly, P. Charbonnier, Michel Barlaud, J. Darcourt, and Laure Blanc-Feraud "EM-MAP algorithm versus ARTUR: theoretical and practical comparisons", Proc. SPIE 2299, Mathematical Methods in Medical Imaging III, (8 July 1994); https://doi.org/10.1117/12.179260

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