Table 1 Evaluation results of image quality degradation. The unit of PSNR is decibel (dB).

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

Scene type

Length–width ratio 3

Length–width ratio 4

Length–width ratio 5

Length–width ratio 6

Length–width ratio 7

Length–width ratio 8

Average

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

PSNR

SSIM

Farmland

26.98

0.6024

25.88

0.5982

24.13

0.5739

22.89

0.5527

22.56

0.539

21.90

0.5278

24.06

0.5657

Airport

25.83

0.5719

24.77

0.5700

22.87

0.5515

21.63

0.5491

20.85

0.5448

20.12

0.5267

22.68

0.5523

Forest

25.76

0.5930

24.84

0.5781

23.14

0.5622

21.43

0.5511

21.01

0.5347

19.75

0.5214

22.66

0.5567

Residential

25.03

0.5852

23.82

0.5706

22.25

0.5582

20.70

0.5426

20.54

0.5409

19.73

0.5283

22.01

0.5543

Harbor

26.07

0.5954

24.55

0.5839

22.59

0.5544

21.86

0.5367

20.98

0.5293

19.96

0.5115

22.67

0.5518

Sea

27.65

0.6111

26.29

0.6012

25.49

0.5878

23.61

0.5818

23.53

0.5770

22.73

0.5739

24.93

0.5888

Average

26.22

0.5931

25.03

0.5837

23.41

0.5646

22.02

0.5523

21.63

0.5443

20.70

0.5316

23.17

0.5616

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