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Laser & Optoelectronics Progress, Volume. 61, Issue 24, 2428012(2024)

Enhanced Display and Identification of Hidden Landslides Based on Airborne LiDAR

Yue Jia1,3, Yonghua Xia2,3、*, Jie Lü2, and Changfu Zhao1
Author Affiliations
  • 1School of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan , China
  • 2City College, Kunming University of Science and Technology, Kunming 650051, Yunnan , China
  • 3Application Engineering Research Center of Spatial Information Surveying and Mapping Technology in Plateau Mountainous Areas, Yunnan University, Kunming , 650093, Yunnan , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (13)
    Equations (4)
    References (20)
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    Paper Information
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    Figures & Tables(13)
    Schematic diagram of the study area

    Fig. 1. Schematic diagram of the study area

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    Principle diagram of unmanned aerial vehicle simulating ground flight

    Fig. 2. Principle diagram of unmanned aerial vehicle simulating ground flight

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    Point cloud data acquisition process

    Fig. 3. Point cloud data acquisition process

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    Results before and after point cloud filtering. (a) Original point cloud; (b) ground point cloud

    Fig. 4. Results before and after point cloud filtering. (a) Original point cloud; (b) ground point cloud

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    DEM results of the study area

    Fig. 5. DEM results of the study area

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    Shadow map of mountain at different azimuth angles. (a) 225 °; (b) 360 °; (c) 225 °, 360 °; (d) 225 °, 270 °, 315 °, 360 °

    Fig. 6. Shadow map of mountain at different azimuth angles. (a) 225 °; (b) 360 °; (c) 225 °, 360 °; (d) 225 °, 270 °, 315 °, 360 °

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    Slope plot of the study area

    Fig. 7. Slope plot of the study area

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    RRIM red stereo diagram

    Fig. 8. RRIM red stereo diagram

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    SVF terrain visualization diagram

    Fig. 9. SVF terrain visualization diagram

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    Enhanced display fusion results

    Fig. 10. Enhanced display fusion results

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    Distribution map of landslide prone areas

    Fig. 11. Distribution map of landslide prone areas

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    • Table 1. Zenith L2 radar system parameters table

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      Table 1. Zenith L2 radar system parameters table

      Zen L2 radar parameterValue
      Supported modelMatrice350RTK
      Working temperature /℃-20‒50
      Range /m450 （reflectivity 50%）
      System accuracyPlane： 5 cm@150 m
      Elevation： 4 cm@150 m
      Distance measurement accuracy2 cm@150 m

    • Table 2. DEM accuracy evaluation table

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      Table 2. DEM accuracy evaluation table

      Interpolation methodEvaluation index
      RMSE /mMAE /mR2
      OK0.22900.16670.9990
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    Yue Jia, Yonghua Xia, Jie Lü, Changfu Zhao. Enhanced Display and Identification of Hidden Landslides Based on Airborne LiDAR[J]. Laser & Optoelectronics Progress, 2024, 61(24): 2428012

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Apr. 3, 2024

    Accepted: May. 20, 2024

    Published Online: Dec. 13, 2024

    The Author Email: Yonghua Xia (617073761@qq.com)

    DOI:10.3788/LOP241024

    CSTR:32186.14.LOP241024

    Topics

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