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Laser & Optoelectronics Progress, Volume. 55, Issue 5, 051203(2018)

Feature Extraction Method of Laser Scanning Point Cloud Based on Morphological Gradient

Bowen Deng, Zhaoba Wang*, Yong Jin, Youxing Chen, Qizhou Wu, and Haiyang Li
Author Affiliations
  • School of Information and Communication Engineering, North University of China, Taiyuan, Shanxi 030051, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (18)
    Cited By (6)
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    Figures & Tables(12)
    Measured object

    Fig. 1. Measured object

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    Method for gaining point cloud

    Fig. 2. Method for gaining point cloud

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    Original point cloud data

    Fig. 3. Original point cloud data

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    DEM of the point cloud

    Fig. 4. DEM of the point cloud

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    Point cloud distribution on radial direction

    Fig. 5. Point cloud distribution on radial direction

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    Point cloud distribution on tangential direction

    Fig. 6. Point cloud distribution on tangential direction

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    Overall technical flow chart

    Fig. 7. Overall technical flow chart

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    Morphological gradient of DEM of the point cloud

    Fig. 8. Morphological gradient of DEM of the point cloud

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    Feature point cloud

    Fig. 9. Feature point cloud

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    Plane point cloud

    Fig. 10. Plane point cloud

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    Plane extraction

    Fig. 11. Plane extraction

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    • Table 1. Results of feature extraction

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      Table 1. Results of feature extraction

      FeatureNominalvalueMeasurement timesMeanvalueRMSE
      12345
      Height of step /mm3.003.103.003.023.052.993.0320.051
      Diameter of circle No. 1 /mm8.508.518.468.528.498.508.4960.021
      Diameter of circle No. 2 /mm8.508.558.488.528.518.488.5080.028
      Diameter of circle No. 3 /mm8.508.488.458.498.488.538.4860.029
      Diameter of circle No. 4 /mm8.508.528.548.488.518.508.5100.022
      Diameter of circle No. 5 /mm8.508.488.518.528.508.498.5000.014
      Diameter of circle No. 6 /mm8.508.538.508.488.488.538.5040.023
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    Bowen Deng, Zhaoba Wang, Yong Jin, Youxing Chen, Qizhou Wu, Haiyang Li. Feature Extraction Method of Laser Scanning Point Cloud Based on Morphological Gradient[J]. Laser & Optoelectronics Progress, 2018, 55(5): 051203

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    Paper Information

    Category: Instrumentation, measurement, and metrology

    Received: Nov. 14, 2017

    Accepted: --

    Published Online: Sep. 11, 2018

    The Author Email: Zhaoba Wang (wzb15851@163.com)

    DOI:10.3788/LOP55.051203

    Topics

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