• Title/Summary/Keyword: Geosptial Information

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Generation and Comparison of 3-Dimensional Geospatial Information using Unmanned Aerial Vehicle Photogrammetry Software (무인항공사진측량 소프트웨어를 이용한 3차원 공간정보 생성 및 비교)

  • Yang, Sung-Ryong;Lee, Hak-Sool
    • Journal of the Society of Disaster Information
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    • v.15 no.3
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    • pp.427-439
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    • 2019
  • Purpose: We generated geospatial information of unmanned aerial vehicle based on various SW and analyzed the location accuracy of orthoimage and DSM and texture mapping of 3D mesh. Method: The same unmanned aerial image data is processed using two different SW, and spatial information is generated. Among the generated spatial information, the orthoimage and DSM were compared with the spatial information generation results of the unmanned aerial photogrammetry SW by performing quantitative analysis by calculating RMSE of horizontal position and vertical position error and performing qualitative analysis. Results: There were no significant differences in the positional accuracy of the orthoimage and DSM generated by each SW, and differences in texture mapping in 3D mesh. The creation of the 3D mesh indicated the impact of the Unmanned Aerial Photogrammetry SW. Conclusion: It is shown that there is no effect of SW on the creation of orthoimage and DSM for geospatial analysis based on unmanned aerial vehicle. However, when 3D visualization is performed, texture mapping results are different depending on SW.