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. Author manuscript; available in PMC: 2022 Jul 29.
Published in final edited form as: Biomed Phys Eng Express. 2021 Jul 29;7(5):10.1088/2057-1976/ac12a4. doi: 10.1088/2057-1976/ac12a4

Table 2.

The RMSE and SSIM values of different reconstruction methods at half dose for Phase 1 and Phase 4. G-SMEIR is represented by (M, N).

Phase 1 Phase 4
RMSE SSIM RMSE SSIM
3D TV 1.28 × 10−3 0.9346 1.20 × 10−3 0.9387
IM4D 1.13 × 10−3 0.9451 1.08 × 10−3 0.9468
SMEIR 1.02 × 10−3 0.9591 1.08 × 10−3 0.9530
(2,11) 1.01 × 10−3 0.9609 0.90 × 10−3 0.9643
(3,7) 1.02 × 10−3 0.9608 0.89 × 10−3 0.9647
(4,5) 1.02 × 10−3 0.9606 0.89 × 10−3 0.9648