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. Author manuscript; available in PMC: 2014 Apr 20.
Published in final edited form as: IEEE Trans Med Imaging. 2012 Nov 27;32(2):460–473. doi: 10.1109/TMI.2012.2230185

Fig. 6.

Fig. 6

Image RMSE, δ, for ℓ2-magnitude, ℓ2-roughness, and ℓ2-TV reconstructions as a function of the number of views for the number of bins fixed at 512, and the data distance D(X f⃗, g⃗) constrained by ε = 10−5. The horizontal dashed line shows the level of the minimum gray-level contrast in the breast phantom. The labels SSC1, SSC3, and SSC4 are the sufficient-sampling conditions discussed in Section IV-A.