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Table 1 Comparison of image evaluation parameters of different reconstruction algorithms (SNR = 20 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 56.4641 56.5765 57.5832 58.1515
SSIM 0.9954 0.9961 0.9968 0.9976
UIQI 0.0172 0.0163 0.0164 0.0506