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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: IEEE Trans Med Imaging. 2016 Dec 22;36(4):917–929. doi: 10.1109/TMI.2016.2643684

Fig. 13.

Fig. 13

AUC plot for Tc of three observer strategies for different iteration numbers at cutoff frequencies 0.08 (upper) and 0.24 (lower) pixel-1. We used 4 subsets/iteration during the OS-EM reconstructions.