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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: IEEE Trans Med Imaging. 2018 Jun;37(6):1430–1439. doi: 10.1109/TMI.2018.2823679

Fig. 6.

Fig. 6

(a)-(c) Reconstructed images at step 1, 4, and 7. CT images are displayed in the window [−100, 300] HU. (d) Error e(%) as a function of parameter-tuning step.