Table 3 Comparison of image evaluation parameters of different reconstruction algorithms (the CT phantom image in the second simulation experiment)
Metrics | Methods | |||
|---|---|---|---|---|
FBP + BIR | SART + BIR | SART + TV + BIR | The proposed method | |
PSNR | 58.68 | 58.81 | 59.63 | 61.82 |
SSIM | 0.9967 | 0.9933 | 0.9966 | 0.9983 |
UIQI | 0.0297 | 0.0460 | 0.1357 | 0.1830 |
SSDE | 6183.8 | 4201.0 | 2323.6 | 1256.1 |