969432.fig.0013a
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969432.fig.0013b
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969432.fig.0013c
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Figure 13: Slices of Shepp-Logan low contrast phantom at , reconstruction with (a) FDK algorithm, Hu’s algorithm, T-FDK algorithm, (b) CFDKW-1, CFDKW-2, Zhu et al.’s algorithm, (c) EM-1 and EM-2 with added noise. Display window is .