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. Author manuscript; available in PMC: 2009 May 1.

Published in final edited form as: IEEE Trans Med Imaging. 2009 Feb;28(2):297–310. doi: 10.1109/TMI.2008.2004670

Fig. 7 — Simulated MRI brain phantom: (a) from left to right, they are noise phantom image at the 82^nd slice, ground truth of {Z_i1} for CSF, ground truth {Z_i2} for grey matter, and ground truth {Z_i3} for white matter respectively, (b) estimated {Z_ik} by the theoretical MAP-EM solution, and (c) estimated {Z_ik} by the approximated MAP-EM solution.

Fig. 7 — Simulated MRI brain phantom: (a) from left to right, they are noise phantom image at the 82^nd slice, ground truth of {Z_i1} for CSF, ground truth {Z_i2} for grey matter, and ground truth {Z_i3} for white matter respectively, (b) estimated {Z_ik} by the theoretical MAP-EM solution, and (c) estimated {Z_ik} by the approximated MAP-EM solution.