Laser & Optoelectronics Progress, Volume. 57, Issue 24, 241019(2020)

Point Cloud Completion Network Based on Multibranch Structure

Kaiqian Luo1,2, Jiangping Zhu1,2、*, Pei Zhou1,2, Zhijuan Duan1,2, and Hailong Jing2
Author Affiliations
  • 1College of Computer Science, Sichuan University, Chengdu, Sichuan 610065, China
  • 2National Key Laboratory of Fundamental Science on Synthetic Vision, Sichuan University, Chengdu, Sichuan 610065, China
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    Figures & Tables(10)
    Three-dimensional point cloud completion network with multibranch structure
    Completion effect of our method. (a) Original point cloud; (b) point cloud after sparse completion; (c) point cloud after complete completion; (d) standard comparison value
    Point cloud completion results of different methods
    Completion effect of our method in KITTI data set
    CD and EMD of different objects in the ShapeNet data set. (a) CD; (b) EMD
    Completion effects of different methods on point clouds with different incomplete ratios. (a) CD; (b) EMD
    Point cloud completion effect of our method on concave structure objects
    Point cloud completion effect of our method on convex structure objects
    • Table 1. Error rates of different methods of completion results (CD)

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      Table 1. Error rates of different methods of completion results (CD)

      MethodChairLampAirplaneCarTableSofaBedBusAverage
      PSG0.02110.0230.02150.01880.01910.02230.02010.02090.0203
      FN0.02910.03120.02990.02650.02600.02910.02670.02570.0274
      PCN0.01720.02010.02030.01520.01910.01920.01690.01780.0182
      Ours0.01710.02120.01890.01550.01780.01880.01680.01750.0177
    • Table 2. Error rates of different methods of completion results (EMD)

      View table

      Table 2. Error rates of different methods of completion results (EMD)

      MethodChairLampAirplaneCarTableSofaBedBusAverage
      PSG0.08210.09030.08920.07520.08210.08120.07670.07710.0781
      FN0.08910.09980.09810.08920.09030.09120.08990.09090.0921
      PCN0.05080.05120.04820.04710.04810.04830.04720.04690.0489
      Ours0.04910.04920.04970.04610.04690.04770.04780.04520.0474
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    Kaiqian Luo, Jiangping Zhu, Pei Zhou, Zhijuan Duan, Hailong Jing. Point Cloud Completion Network Based on Multibranch Structure[J]. Laser & Optoelectronics Progress, 2020, 57(24): 241019

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    Paper Information

    Category: Image Processing

    Received: May. 6, 2020

    Accepted: Jun. 24, 2020

    Published Online: Dec. 2, 2020

    The Author Email: Zhu Jiangping (zjp16@scu.edu.cn)

    DOI:10.3788/LOP57.241019

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