Laser & Optoelectronics Progress, Volume. 57, Issue 8, 081019(2020)

Object Classification Method for Multi-Source Fusion Point Clouds Based on Point-Net

Xiaosong Shi*, Yinglei Cheng, Doudou Xue, and Xianxiang Qin
Author Affiliations
  • Information and Navigation College, Air Force Engineering University, Xi'an, Shaanxi 710077, China
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    Figures & Tables(10)
    Flow chart of proposed method
    Process of registration and fusion
    Architecture of Point-Net
    Architecture of multi-scale Point-Net
    Simulation data. (a) Point cloud data; (b) remote-sensing image data; (c) overlapping image
    Binary images of point clouds and remote-sensing image, results of registration, and fusion point clouds. (a) Binary image of point clouds; (b) binary image of remote-sensing image; (c) registration result; (d) fusion point cloud data
    Training error curve
    Classification results. (a)(b) Without RGB point clouds; (c)(d) with RGB point clouds
    • Table 1. Classification accuracy of different methods

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      Table 1. Classification accuracy of different methods

      AlgorithmCategoryF1 /%Overall accuracy /%
      Ground79.2
      SVMVegetation81.278.7
      Building78.5
      Artificiality45.1
      Ground89.4
      Point-NetVegetation87.484.7
      Building78.2
      Artificiality24.2
      Multi-scalePoint-Netwithout RGBGround92.7
      Vegetation91.692.5
      Building93.3
      Artificiality57.1
      Multi-scalePoint-Netwith RGBGround98.5
      Vegetation97.696.8
      Building96.1
      Artificiality76.9
    • Table 2. Classification time of different methodss

      View table

      Table 2. Classification time of different methodss

      MethodPoint-NetMulti-scale Point-Net without RGBMulti-scale Point-Net with RGB
      Training time437546495568
      Test time204.9209.8204.9
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    Xiaosong Shi, Yinglei Cheng, Doudou Xue, Xianxiang Qin. Object Classification Method for Multi-Source Fusion Point Clouds Based on Point-Net[J]. Laser & Optoelectronics Progress, 2020, 57(8): 081019

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    Paper Information

    Category: Image Processing

    Received: Sep. 2, 2019

    Accepted: Sep. 16, 2019

    Published Online: Apr. 3, 2020

    The Author Email: Xiaosong Shi (shixiaosong321@126.com)

    DOI:10.3788/LOP57.081019

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