Journal of Infrared and Millimeter Waves, Volume. 43, Issue 1, 116(2024)

A building extraction method based on IGA that fuses point cloud and image data

Xu-Dong LAI1, Wei-Ran PIAN1、*, Li-Ming BO2, and Li-Hua He3
Author Affiliations
  • 1School of remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China
  • 2China Institute of Development Strategy and Planning,Wuhan University,Wuhan 430079,China
  • 3Hubei Provincial Geographical National Conditions Monitoring Center,Wuhan 430079,China
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    Figures & Tables(13)
    Technical flow chart
    Schematic diagram of distance
    Principle of feature fusion
    Feature selection flow chart
    Design of IGA algorithm chromosome coding
    Orthophoto of experimental data
    Building extraction results of Vaihingen
    Building extraction results of production data
    • Table 1. Neighborhood features of points

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      Table 1. Neighborhood features of points

      类别名称简称公式
      基于特征值的特征特征值和SUλ1+λ2+λ3
      全方差TVλ1λ2λ33
      特征熵EI-i=13λiln λi
      各向异性AN(λ1-λ3)/λ2
      平面度PL(λ2-λ3)/λ1
      线性度LI(λ1-λ2)/λ1
      表面粗糙度SRλ3/(λ1+λ2+λ3)
      球形度SPλ3/λ1
      基于密度的特征点云密度PD0.75*N/πr3
      基于强度的特征平均强度AIi=1nINin
      基于高程的特征向上高差HAZ-Zmin
      向下高差HBZmax-Z
      邻域高程方差NHV-i=1nZi-Zave2n-1
    • Table 2. Images features

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      Table 2. Images features

      类别名称简称公式
      基于RGB的特征红色度RERed/(Green +Blue)
      绿色度GRGreen/(Red+Blue)
      蓝色度BLBlue/(Red+ Green)
      基于彩色影像的纹理特征角二阶矩ASMi,jpi,j2
      对比度CONi,ji-j2p(i,j)
      相关性CORi,j(i-μi)(j-μj)p(i,j)σiσj
      EN-i,jpi,jlog (pi,j)
    • Table 3. Experiments results of Vaihingen (%)

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      Table 3. Experiments results of Vaihingen (%)

      实验区Compl areaCorr areaCompl objCorr objCompl obj>50 m2Compl obj>50 m2
      area196.8398.5395.697.9100100
      area296.8997.6496.798.7100100
      area396.2597.8590.698.2100100
      平均96.6698.0294.398.3100100
    • Table 4. Comparison with other methods (%)

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      Table 4. Comparison with other methods (%)

      IDCompl areaCorr areaCompl objCorr objCompl obj>50m2Compl obj>50 m2
      WHU_ZZ86.194.97595.697.4100
      MON393.781.376.895.797.4100
      WHU_YD90.298.185.79897.4100
      CSU93.994.780.4100100100
      MON493.781.376.895.797.4100
      MON589.787.983.991.797.4100
      HKP89.297.776.897.897.4100
      ZNU95.596.986.5100100100
      WHU&HKP94.393.875.097.099.1100
      CSU95.397.085.4100100100
      本文方法96.798.094.398.3100100
    • Table 5. Experiments results of production data (%)

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      Table 5. Experiments results of production data (%)

      实验区Compl areaCorr areaCompl objCorr objCompl obj>50 m2Compl obj>50 m2
      实际生产196.8396.1795.3195.24100100
      实际生产297.3597.6496.9097.06100100
      平均97.0996.9196.1196.15100100
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    Xu-Dong LAI, Wei-Ran PIAN, Li-Ming BO, Li-Hua He. A building extraction method based on IGA that fuses point cloud and image data[J]. Journal of Infrared and Millimeter Waves, 2024, 43(1): 116

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    Paper Information

    Category: Research Articles

    Received: May. 31, 2023

    Accepted: --

    Published Online: Dec. 26, 2023

    The Author Email: Wei-Ran PIAN (2021202130038@whu.edu.cn)

    DOI:10.11972/j.issn.1001-9014.2024.01.016

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