Table 2 Comparison of image evaluation parameters of different reconstruction algorithms (SNR = 40 dB)
Metrics | Methods | |||
|---|---|---|---|---|
FBP + BIR | SART + BIR | SART + TV + BIR | The proposed method | |
PSNR | 58.9723 | 60.0051 | 61.2560 | 62.1375 |
SSIM | 0.9990 | 0.9992 | 0.9996 | 0.9997 |
UIQI | 0.1449 | 0.2101 | 0.2588 | 0.2745 |
SSDE | 3495.9 | 2815.2 | 1545.1 | 591.4 |