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. Author manuscript; available in PMC: 2013 May 30.
Published in final edited form as: IEEE Trans Med Imaging. 2009 Mar;28(3):435–445. doi: 10.1109/TMI.2008.2006518

Fig. 8.

Fig. 8

Contrast-noise trade-off at different sub-iterations for the rod phantom (Fig. 7). Contrast is evaluated between ROI 1 and ROI 2 [Fig. 6(b)]. Noise is approximated by the spatial standard deviation in ROI 1.