Fig 1.
Schematic diagram of the proposed method.
Fig 2.
Reconstruction results of case AAPM-1 at different dose levels by different methods.
Zoomed parts over the region of interest (ROI) marked by the red box in the ground-truth image.
Fig 3.
Reconstruction results of case AAPM-2 at different dose levels by different methods.
Zoomed ROI images from the ground-truth image.
Fig 4.
Reconstruction results of case AAPM-3 at different dose levels by different methods.
Zoomed ROI images from the ground-truth image.
Fig 5.
Reconstruction results of LoDoPab-CT data at different dose levels by different methods.
Zoomed ROI images from the ground-truth image.
Fig 6.
Reconstruction errors of LoDoPab-CT data at different dose levels by different methods.
Table 1.
Quantitative results (PNSR/SSIM) of different algorithms.
Table 2.
Computation time of different algorithms for LoDoPab-CT data reconstruction.
Fig 7.
Convergence analysis of the proposed method in LoDoPab-CT data reconstruction.
(a1), (a2) and (a3) represent the PSNR, SSIM, and loss curve, respectively, for Ii = 1e3. (b1), (b2) and (b3) depict the PSNR, SSIM, and loss curve, respectively, for Ii = 1e4. (c1), (c2) and (c3) is the PSNR, SSIM, and loss curve, respectively, for Ii = 5e4.