Optics and Precision Engineering, Volume. 31, Issue 13, 1900(2023)

Mechanism analysis and suppression of speckle in high-precision laser location

Jing XU1...3, Qianchao WANG1,*, Zhengwei REN2, Feiran FU2 and Ming FANG2 |Show fewer author(s)
Author Affiliations
  • 1School of Computer Science and Technology, Changchun University of Science and Technology, Changchun30022, China
  • 2School of Artificial Intelligence, Changchun University of Science and Technology, Changchun1300, China
  • 3Zhongshan Institute of Changchun University of Science and Technology, Zhongshan52840, China
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    Figures & Tables(13)
    Visual positioning measurement system
    Collision process of refracted light in imaging medium
    Schematic diagram of pure reflected light, mixed light and pure scattered light
    Light reflection diagram of microfacet
    Light spot images of target with three densities
    Spot images of target with three roughness levels
    Images of light spot on target surface of three light absorbing materials
    Enlarged images of target spot under eight kinds of powers
    Variation curves of spot STD at eight power levels
    • Table 1. Mean, range, and STD of laser centroid pixel coordinates on three kinds of density target surfaces

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      Table 1. Mean, range, and STD of laser centroid pixel coordinates on three kinds of density target surfaces

      Target surface typeMeanRangeSTD
      XYXYXY
      0.1 mm WNC895.627644.5560.1210.0980.0940.090
      1 mm WNC887.694634.3850.0550.0930.0470.061
      2 mm WNC891.228658.1190.0120.0090.0090.007
    • Table 2. Mean, Range, and STD of laser centroid pixel coordinates on three kinds of roughness target surfaces

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      Table 2. Mean, Range, and STD of laser centroid pixel coordinates on three kinds of roughness target surfaces

      Target surface typeMeanRangeSTD
      XYXYXY
      BCC625.256345.1850.0870.0710.0840.073
      BFC624.328346.7260.3010.2760.2810.260
      BAS627.871347.4430.6710.5880.3920.496
    • Table 3. Mean, Range, and STD of laser centroid pixel coordinates on three light absorbing target surfaces

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      Table 3. Mean, Range, and STD of laser centroid pixel coordinates on three light absorbing target surfaces

      Target surface typeMeanRangeSTD
      XYXYXY
      WCC624.413344.1660.5120.4040.2970.312
      BCC625.256345.1850.0870.0710.0840.073
      TBCC625.513345.4160.0320.0440.0230.031
    • Table 4. Mean, range, and STD of laser centroid pixel coordinates on eight kinds of power lasers

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      Table 4. Mean, range, and STD of laser centroid pixel coordinates on eight kinds of power lasers

      Laser power/mWMeanRangeSTD
      XYXYXY
      10684.339516.1970.0310.0270.0210.011
      50683.946516.5560.0370.0720.0290.026
      70684.778515.7270.0610.0670.0490.037
      90683.315516.8310.3940.4110.1970.201
      110686.324517.9600.6670.8420.3730.433
      130686.871514.7131.3301.5220.8110.861
      170683.556513.1771.8972.1311.4261.821
      200687.334518.4632.5292.6141.7561.937
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    Jing XU, Qianchao WANG, Zhengwei REN, Feiran FU, Ming FANG. Mechanism analysis and suppression of speckle in high-precision laser location[J]. Optics and Precision Engineering, 2023, 31(13): 1900

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    Paper Information

    Category: Modern Applied Optics

    Received: Nov. 22, 2022

    Accepted: --

    Published Online: Jul. 26, 2023

    The Author Email: WANG Qianchao (wqcaaa2022@163.com)

    DOI:10.37188/OPE.20233113.1900

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