Laser & Optoelectronics Progress, Volume. 61, Issue 20, 2011020(2024)
Imaging Properties of Scattering Medium Optical Systems
Fig. 1. Principle diagram of coherent scattering imaging based on double random media
Fig. 3. Power spectrum distribution map of speckle collected from targets and different focal lengths
Fig. 4. Numerical simulation results of speckle imaging. (a) Speckle image; (b) simulation objectives; (c) autocorrelation image; (d) power spectrum; (e) recovery result
Fig. 5. Simulation speckle reconstruction results of lenses with different focal lengths. (a) 18 mm; (b) 28 mm; (c) 35 mm; (d) 41 mm; (e) 46 mm; (f) 55 mm
Fig. 6. Correlation coefficient of speckle recovery results at different focal lengths
Fig. 7. Simulation speckle reconstruction results of lenses at different distances. (a) 0.5 m; (b) 1 m; (c) 2 m; (d) 3 m; (e) 4 m; (f) 5 m
Fig. 9. Restoration results of speckle autocorrelation imaging. (a) Original image; (b) preprocessing result; (c) target object image; (e) autocorrelation image; (e) recovery result
Fig. 10. Speckle recovery results obtained from lenses with different focal lengths. (a) 18 mm; (b) 28 mm; (c) 35 mm; (d) 41 mm; (e) 46 mm; (f) 55 mm
Fig. 11. Recovery results of different filtering parameters and sub image sizes. (a) 7×7, 500 pixel×500 pixel; (b) 5×5, 500 pixel×500 pixel; (c) 5×5, 300 pixel×300 pixel; (d) 3×3, 300 pixel×300 pixel
Fig. 12. Speckle recovery results at different distances. (a) f=55 mm,d0=0.5 m; (b) f=55 mm,d0=1 m;(c) f=55 mm,d0=2 m; (d) f=420 mm,d0=5 m; (e) f=420 mm,d0=5.5 m; (f) f=420 mm,d0=6 m
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Zhenxiang Guo, Liu Sha, Haiyu Bao, Wenqing Sun, Quanying Wu. Imaging Properties of Scattering Medium Optical Systems[J]. Laser & Optoelectronics Progress, 2024, 61(20): 2011020
Category: Imaging Systems
Received: Mar. 7, 2024
Accepted: May. 7, 2024
Published Online: Nov. 4, 2024
The Author Email: Sun Wenqing (sunwenqing@mail.usts.edu.cn)
CSTR:32186.14.LOP240843