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Alenius, S. Ruotsalainen, U. and Astola J. (1997) Using local median as the location of the prior distribution in iterative emission tomography image reconstruction. Proceedings of IEEE Medical Image Conference, 45, 3097- 3104.

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• TITLE: Towards novel regularization approaches to PET image reconstruction

  AUTHORS: E. Karali, D. Koutsouris

  KEYWORDS: Image Reconstruction; Positron Emission Tomography (PET); Small Animal Imaging; Median Root Prior (MRP)

  JOURNAL NAME: Journal of Biosciences and Medicines, Vol.1 No.2, November 8, 2013

  ABSTRACT: The purpose of this study is to introduce a novel empirical iterative algorithm for medical image reconstruction, under the short name MRP-ISWLS (Median Root Prior Image Space Weighted Least Squares). Further, we assess the performance of the new algorithm by comparing it to the simultaneous version of known MRP algorithms. All algorithms are compared in terms of cross-correlation and CNRs (Contrast-to-Noise Ratios). As it turns out, MRP-ISWLS presents higher CNRs than the known algorithms for objects of different size. Also MRP-ISWLS has better noise manipulation.