Laser & Optoelectronics Progress, Volume. 61, Issue 20, 2011020(2024)

Imaging Properties of Scattering Medium Optical Systems

Zhenxiang Guo1,2, Liu Sha1,2, Haiyu Bao1,2, Wenqing Sun1,2、*, and Quanying Wu1,2
Author Affiliations
  • 1School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu , China
  • 2Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, Suzhou 215009, Jiangsu , China
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    Figures & Tables(15)
    Principle diagram of coherent scattering imaging based on double random media
    Flow chart of speckle image restoration
    Power spectrum distribution map of speckle collected from targets and different focal lengths
    Numerical simulation results of speckle imaging. (a) Speckle image; (b) simulation objectives; (c) autocorrelation image; (d) power spectrum; (e) recovery result
    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
    Correlation coefficient of speckle recovery results at different focal lengths
    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
    Scattering imaging system based on speckle autocorrelation
    Restoration results of speckle autocorrelation imaging. (a) Original image; (b) preprocessing result; (c) target object image; (e) autocorrelation image; (e) recovery result
    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
    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
    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
    • Table 1. SSIM and MSE values corresponding to speckle recovery results at different focal lengths

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      Table 1. SSIM and MSE values corresponding to speckle recovery results at different focal lengths

      ParameterFocal length /mm
      182835414655
      SSIM0.38640.45520.50440.61010.71410.7829
      MSE0.41220.31650.16880.10260.03460.0139
    • Table 2. SSIM and MSE values corresponding to the recovery results of different filtering parameters and sub image sizes

      View table

      Table 2. SSIM and MSE values corresponding to the recovery results of different filtering parameters and sub image sizes

      ParameterSerial number
      Group aGroup bGroup cGroup d
      SSIM0.63410.69570.72520.7626
      MSE0.09460.05240.03210.0225
    • Table 3. SSIM and MSE values corresponding to speckle recovery results at different distances

      View table

      Table 3. SSIM and MSE values corresponding to speckle recovery results at different distances

      ParameterValue
      f /mm555555420420420
      d0 /m0.51255.56
      SSIM0.78290.62750.48060.68350.58280.3664
      MSE0.01390.10270.25930.08110.13660.4968
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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

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    Paper Information

    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)

    DOI:10.3788/LOP240843

    CSTR:32186.14.LOP240843

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