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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2013 Oct 24;61(9):2367–2378. doi: 10.1109/TBME.2013.2287244

Fig. 3.

Fig. 3

The anthropomorphic torso phantom reconstructions by the four methods from the sinogram data set acquired at 40 mAs, 120 kVp. (a) the FBP reconstruction with ramp filter; (b) the PWLS-NL reconstruction (N = 21 × 21, n = 5 × 5, h = 2.0 × 10−3, β = 2.5 × 104); (c) the PICCS reconstruction using Fig. 1(b) as the prior image (α = 0.6, λ = 0.12); (d) the image reconstructed by the GDSIR method (λ = 3 × 10−2); and (e) the PWLS-PINL reconstruction using Fig. 1(b) as the prior image (N = 21 × 21, n = 5 × 5, h = 2.0 × 10−3, β = 2.0 × 104). All the images are displayed in a same window.