Table 2 Average super-resolution results for all test images. The unit of PSNR is decibel (dB).

From: Characterization and experimental verification of the rotating synthetic aperture optical imaging system

Method

Length–width ratio 3

Length–width ratio 4

Length–width ratio 5

Length–width ratio 6

Length–width ratio 7

Length–width ratio 8

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

SRGAN

29.63

0.8915

28.34

0.8632

27.86

0.8513

26.83

0.8249

26.19

0.8075

25.76

0.7957

EDSR

30.18

0.9109

28.90

0.8695

28.46

0.8521

27.47

0.8218

27.09

0.8066

26.41

0.7847

SRMD

30.39

0.9227

29.40

0.8967

28.89

0.8825

28.02

0.8584

27.21

0.8348

26.64

0.8193

FSSR

30.10

0.9092

28.88

0.8794

28.55

0.8713

27.62

0.8477

26.73

0.8253

26.49

0.8084

Real-ESRGAN

29.54

0.8879

28.69

0.8502

28.22

0.8264

26.86

0.7837

26.34

0.7597

25.90

0.7402

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