Table 1 Comparison of image evaluation parameters of different reconstruction algorithms (SNR = 20 dB)
Metrics | Methods | |||
|---|---|---|---|---|
FBP + BIR | SART + BIR | SART + TV + BIR | The proposed method | |
PSNR | 57.4383 | 58.3425 | 58.8898 | 60.1005 |
SSIM | 0.9973 | 0.9978 | 0.9981 | 0.9986 |
UIQI | 0.0472 | 0.0555 | 0.0394 | 0.0701 |
SSDE | 4084.1 | 1433.5 | 1481.1 | 979.2 |