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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: IEEE Trans Comput Imaging. 2020 Jan 6;6:518–528. doi: 10.1109/tci.2020.2964229

TABLE V.

Study 2: Performance comparison

Metric Reference HR LR RBV TV JE S1 V1 S2 V2 S3 V3 S4 V4
PSNR HRRT 27.83 26.55 26.68 27.48 35.11 35.69 38.37 38.48 35.48 35.92 38.44 38.69
PSNR s.d. 0.00 0.17 0.45 0.55 0.50 0.36 0.33 0.24 0.26 0.33 0.29 0.28 0.27
PSNR True 22.15 21.47 21.84 22.35 22.37 22.69 23.06 22.46 23.92 23.07 23.48 23.78 24.29
PSNR s.d. 0.52 0.41 0.70 0.66 0.68 0.070 0.70 0.072 0.70 0.71 0.61 0.71 0.70
SSIM HRRT 1.00 0.76 0.81 0.83 0.83 0.82 0.80 0.88 0.88 0.85 0.82 0.89 0.90
SSIM s.d. 0.000 0.033 0.012 0.006 0.005 0.050 0.001 0.062 0.0028 0.024 0.002 0.014 0.003
SSIM True 0.84 0.74 0.74 0.85 0.86 0.77 0.75 0.86 0.86 0.79 0.77 0.86 0.87
SSIM s.d. 0.003 0 .007 0.013 0.012 0.006 0.022 0.008 0.020 0.006 0.021 0.007 0.021 0.006
CNR - 0.67 0.09 0.59 0.52 0.53 0.48 0.50 0.58 0.63 0.46 0.49 0.61 0.64
CNR s.d. 0.06 0.04 0.06 0.08 0.08 0.03 0.03 0.12 0.01 0.04 0.04 0.01 0.04