Optical Field Imaging Echo Demodulation Ratio Method to Suppress the Image Quality Degradation Caused by Light Intensity Disturbance

Zhiyuan CHENG; Zhou JI; Yansheng GAO; Hua SU; Peipei YAN; Aili XIA

doi:10.3788/gzxb20225112.1211003

Acta Photonica Sinica, Volume. 51, Issue 12, 1211003(2022)

Optical Field Imaging Echo Demodulation Ratio Method to Suppress the Image Quality Degradation Caused by Light Intensity Disturbance

Zhiyuan CHENG1...2,*, Zhou JI3, Yansheng GAO3, Hua SU4, Peipei YAN1,2 and Aili XIA1 |Show fewer author(s)

Author Affiliations

¹Xi'an Institute of Optics and Precision Mechnics of CAS，Xi'an 710119，China

²CAS Key Laboratory of Space Precision Measurement Technology，Xi'an 710119，China

³University of Chinese Academy of Sciences，Beijing 100049，China

⁴School of Physics and Information Technology，Shaanxi Normal University，Xi'an 710119，China

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Figures & Tables(14)

Fig. 1. Schematic diagram of optical field imaging principle

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Fig. 2. Schematic diagram of suppression light intensity disturbance by demodulated ratio method

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Fig. 3. Schematic diagram of spectrum iterative reconstruction

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Fig. 4. Original simulation target and reconstructed image without light intensity disturbance

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Fig. 5. Comparison of reconstructed images by direct reconstruction and demodulation ratio method

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Fig. 6. Optical field imaging SR curve of demodulation ratio method and direct reconstructed method

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Fig. 7. Experiment platform of optical field imaging

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Fig. 8. Comparison of image reconstruction effect before and after suppression of light intensity disturbance

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Table 1. SR of direct reconstructed image under different BR
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Table 1. SR of direct reconstructed image under different BR
Beam intensity disturbance ratio Strehl ratio
0%
1%
5%
9%
10%
13%
15%
0.85
0.76
0.68
0.57
0.46
0.35
0.31

Table 2. SR of demodulated ratio reconstructed image under different BR
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Table 2. SR of demodulated ratio reconstructed image under different BR
Beam intensity disturbance ratio Strehl ratio
0%
1%
5%
9%
10%
13%
15%
0.85
0.83
0.79
0.73
0.62
0.54
0.51

Table 3. PSNR of direct reconstructed image under different BR
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Table 3. PSNR of direct reconstructed image under different BR
Beam intensity disturbance ratio PSNR
1%
5%
9%
10%
13%
15%
59.997 0
59.404 8
58.325 6
58.277 5
58.187 4
58.175 4

Table 4. PSNR of demodulated reconstructed image under different BR
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Table 4. PSNR of demodulated reconstructed image under different BR
Beam intensity disturbance ratio PSNR
1%
5%
9%
10%
13%
15%
60.27
59.84
59.43
58.83
58.45
58.29

Table 5. SSIM of direct reconstructed image under different BR
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Table 5. SSIM of direct reconstructed image under different BR
Beam intensity disturbance ratio SSIM
1%
5%
9%
10%
13%
15%
0.997 1
0.996 8
0.996 1
0.994 2
0.993 4
0.992 9

Table 6. SSIM of demodulated reconstructed image under different BR
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Table 6. SSIM of demodulated reconstructed image under different BR
Beam intensity disturbance ratio SSIM
1%
5%
9%
10%
13%
15%
0.998 6
0.998 5
0.998 3
0.997 1
0.994 3
0.993 5

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Zhiyuan CHENG, Zhou JI, Yansheng GAO, Hua SU, Peipei YAN, Aili XIA. Optical Field Imaging Echo Demodulation Ratio Method to Suppress the Image Quality Degradation Caused by Light Intensity Disturbance[J]. Acta Photonica Sinica, 2022, 51(12): 1211003

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