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A reconstructed slice of one patient dataset: (a) FBP reconstruction from the full 1160 projection views; (b) FBP reconstruction from 145 projection views; (c) FBP+NLM filtering from 145 projection views (SW = 172, PW = 52, h = 0.01); (d) PWLS‐NLM reconstruction from 145 projection views (SW = 172, PW = 52, h = 0.006); (e) PWLS‐adaptiveNLM reconstruction from 145 projection views (SW = 172, PW = 52, s = 1 × 10−3, t = 4 × 10−6). All the images are displayed with the same window.
