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Figure 4
A compassion of reconstruction methods for a foam phantom with 128 projections. (a) Ground truth, (b) tomoCAM, (c) SVMBIR, (d) TIGRE (IRN-TV-CGLS) and (e) gridrec. Panels (f), (g), (h), (i) and (j) are the zoomed-in regions of interest represented by the boxes in (a), (b), (c), (d) and (e), respectively, and (k) displays the line profiles on (f), (g), (h), (i) and (j). Reconstructions using tomoCAM, SVMBIR and TIGRE (IRN-TV-CGLS) result in images with low noise when compared with gridrec. The relative root-mean-square error values when compared against the ground truth for gridrec, SVMBIR, TIGRE and tomoCAM are 0.95, 0.33, 0.53 and 0.47, respectively. Here tomoCAM is about 9× faster than SVMBIR, and 20× faster than TIGRE (IRN-TV-CGLS).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 1| January 2024| Pages 85-94
https://doi.org/10.1107/S1600577523008962
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