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Laser & Optoelectronics Progress, Volume. 57, Issue 23, 230901(2020)

Edge Extraction Technologies Based on an Optical Scanning Holographic System

Li Yang1, Yuli Lou1、*, Chongguang Li1, Rende Wang1, Huaying Wang2, Zhao Dong2, Jinbin Gui1, Qinghe Song1, and Qingwei Liu1
Author Affiliations
  • 1Key Laboratory of Laser Information Processing Technology and Application, College of Science, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
  • 2School of Mathematics & Physics Science and Engineering, Hebei University of Engineering, Handan, Hebei 0 56038, China;
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    References (32)
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    Figures & Tables(11)
    Schematic of OSH system

    Fig. 1. Schematic of OSH system

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    Experimental results of OSH system with annular pupil. (a) Original object; (b) transmittance distribution of annular pupil (ε=0.5); (c) reconstruction image of complex hologram; (d) normalized intensity of the position of the dotted line in Fig. 2 (c); (e) local normalized intensity

    Fig. 2. Experimental results of OSH system with annular pupil. (a) Original object; (b) transmittance distribution of annular pupil (ε=0.5); (c) reconstruction image of complex hologram; (d) normalized intensity of the position of the dotted line in Fig. 2 (c); (e) local normalized intensity

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    Experimental results of OSH system using LG beam-axis cone lens pupil. (a) Transmittance distribution of LG beam-axis cone pupil (ε=0.5); (b) reconstruction image of complex hologram; (c) normalized intensity of the position of the dotted line in Fig. 3 (b); (d) local normalized intensity

    Fig. 3. Experimental results of OSH system using LG beam-axis cone lens pupil. (a) Transmittance distribution of LG beam-axis cone pupil (ε=0.5); (b) reconstruction image of complex hologram; (c) normalized intensity of the position of the dotted line in Fig. 3 (b); (d) local normalized intensity

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    Reconstructed images and normalized intensity using LG beam-axis cone lens pupil with different aperture ratios. (a)(e) ε=0.3; (b)(f) ε=0.5; (c)(g) ε=0.7; (d)(h) ε=0.9

    Fig. 4. Reconstructed images and normalized intensity using LG beam-axis cone lens pupil with different aperture ratios. (a)(e) ε=0.3; (b)(f) ε=0.5; (c)(g) ε=0.7; (d)(h) ε=0.9

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    Experimental results for a complex object (ε=0.5). (a) Original object; (b) reconstruction image of complex hologram; (c) reconstruction image in the vertical direction; (d) reconstruction image in the horizontal direction

    Fig. 5. Experimental results for a complex object (ε=0.5). (a) Original object; (b) reconstruction image of complex hologram; (c) reconstruction image in the vertical direction; (d) reconstruction image in the horizontal direction

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    Reconstructed images and normalized intensity of a complex hologram using amplitude-type pupils with power function distribution under different powers. (a) Transmittance distribution of amplitude type pupil with power function distribution (n0=1); (b)(e) n0=1; (c)(f) n0=2; (d)(g) n0=3

    Fig. 6. Reconstructed images and normalized intensity of a complex hologram using amplitude-type pupils with power function distribution under different powers. (a) Transmittance distribution of amplitude type pupil with power function distribution (n0=1); (b)(e) n0=1; (c)(f) n0=2; (d)(g) n0=3

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    Reconstructed images and normalized intensity using two kinds of pupils for the rectangular object. (a) Original object; (b)(c)(d) LG beam-axis cone lens pupil (ε=0.5); (e)(f)(g) amplitude type pupil with power function distribution (n0=1)

    Fig. 7. Reconstructed images and normalized intensity using two kinds of pupils for the rectangular object. (a) Original object; (b)(c)(d) LG beam-axis cone lens pupil (ε=0.5); (e)(f)(g) amplitude type pupil with power function distribution (n0=1)

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    • Table 1. Comparison of image quality after edge extraction using ring pupil and LG beam-axis cone lens pupil at the same aperture ratio (ε=0.5)

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      Table 1. Comparison of image quality after edge extraction using ring pupil and LG beam-axis cone lens pupil at the same aperture ratio (ε=0.5)

      PupilMSEPSNR /dB
      Annular1994.1015.24
      LG beam-axis cone lens633.8620.11

    • Table 2. Comparison of image quality after edge extraction using LG beam-axis cone lens at different aperture ratios

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      Table 2. Comparison of image quality after edge extraction using LG beam-axis cone lens at different aperture ratios

      Aperture ratioMSEPSNR /dB
      0.318392.165.48
      0.50.70.9633.861204.433063.2920.1117.3213.27

    • Table 3. Comparison of image quality after edge extraction using amplitude type pupil with different power distributions

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      Table 3. Comparison of image quality after edge extraction using amplitude type pupil with different power distributions

      PowerMSEPSNR /dB
      1135.7926.80
      2255.6724.05
      3262.0823.95
      4280.3023.65
      5290.7223.50
      6296.0123.42

    • Table 4. Comparison of image quality after edge extraction using LG beam-axis cone lens pupil (ε=0.5) and power function distribution amplitude type pupil (n0=1)

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      Table 4. Comparison of image quality after edge extraction using LG beam-axis cone lens pupil (ε=0.5) and power function distribution amplitude type pupil (n0=1)

      PupilMSEPSNR /dB
      LG beam-axis cone125.7527.14
      Amplitude type21.2734.85
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    Li Yang, Yuli Lou, Chongguang Li, Rende Wang, Huaying Wang, Zhao Dong, Jinbin Gui, Qinghe Song, Qingwei Liu. Edge Extraction Technologies Based on an Optical Scanning Holographic System[J]. Laser & Optoelectronics Progress, 2020, 57(23): 230901

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    Paper Information

    Category: Holography

    Received: Mar. 25, 2020

    Accepted: Apr. 7, 2020

    Published Online: Dec. 7, 2020

    The Author Email: Yuli Lou (578928841@qq.com)

    DOI:10.3788/LOP57.230901

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology