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Table 2 Comparison of image evaluation parameters of different reconstruction algorithms (SNR = 40 dB)

From: Double regularization medical CT image blind restoration reconstruction based on proximal alternating direction method of multipliers

  FBP SART TV regularization The proposed method
PSNR 58.6194 59.9776 60.0533 61.6325
SSIM 0.9982 0.9991 0.9992 0.9996
UIQI 0.0152 0.0570 0.0832 0.1565