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Figure 6
Denoising of the stack of projections of Fly, showing two sinograms of the noisy stack of projections Z (4)[link] and the corresponding estimates [\widehat{\ln(A)}] of the underlying stack of projections ln(A) (3)[link] obtained with the proposed framework (top), and the tomograms of the second sinogram (bottom), obtained with filtered back-projection using cone-beam geometry (Feldkamp et al., 1984BB290), for both the noisy data Z and the proposed estimate [\hat{Y}] of the streak-free projections Y (5)[link]. The tomogram for [\widehat{\ln(A)}] is shown in Fig. 8[link]. The first sinogram shows significant model nonstationarity in both streaks and the Poissonian component due to the bright-fielding.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 3| May 2022| Pages 829-842
https://doi.org/10.1107/S1600577522002739
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