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无人机载LiDAR和倾斜摄影技术在地质灾害隐患早期识别中的应用

贾虎军 王立娟 范冬丽

贾虎军, 王立娟, 范冬丽. 2021: 无人机载LiDAR和倾斜摄影技术在地质灾害隐患早期识别中的应用. 中国地质灾害与防治学报, 32(2): 60-65. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.08
引用本文: 贾虎军, 王立娟, 范冬丽. 2021: 无人机载LiDAR和倾斜摄影技术在地质灾害隐患早期识别中的应用. 中国地质灾害与防治学报, 32(2): 60-65. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.08
Hujun JIA, Lijuan WANG, Dongli FAN. 2021: The application of UAV LiDAR and tilt photography in the early identification of geo-hazards. The Chinese Journal of Geological Hazard and Control, 32(2): 60-65. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.08
Citation: Hujun JIA, Lijuan WANG, Dongli FAN. 2021: The application of UAV LiDAR and tilt photography in the early identification of geo-hazards. The Chinese Journal of Geological Hazard and Control, 32(2): 60-65. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.08

无人机载LiDAR和倾斜摄影技术在地质灾害隐患早期识别中的应用

doi: 10.16031/j.cnki.issn.1003-8035.2021.02.08
基金项目: 高分专项省域产业化应用项目(87-Y40G06-9001-15/18);四川省科技计划重点研发项目(2018GZ0051;2019YFS0073)
详细信息
    作者简介:

    贾虎军(1991-),男,甘肃天水人,硕士,工程师,主要从事地震与地质灾害应急技术保障方面的研究。E-mail:809165097@qq.com

  • 中图分类号: P642

The application of UAV LiDAR and tilt photography in the early identification of geo-hazards

  • 摘要: 近年来,隐蔽性强、突发性高、破坏力大、灾害链长的重大地质灾害频繁发生。如何实现人工排查无法到达区域地质灾害隐患的早期识别,已是地质灾害防治领域必需解决的难题。本文基于无人机载LiDAR和倾斜摄影技术,获取地质灾害隐患点更加精准、精细的地形地貌勘测数据,采用定性与定量相结合方法开展地质灾害隐患早期识别。无人机载LiDAR技术能够“穿透”地表植被,获取真实地表数字高程模型(DEM),据此可计算出地质灾害的关键特征参数,如山体阴影、坡度、等高线、粗糙度以及曲率等微地貌因子。无人机载倾斜摄影技术能够快速获取地质灾害隐患点的三维模型和数字正射影像(DOM),使在三维实景场景模型中开展地质灾害隐患点识别和研判成为可能。通过建立数据综合应用策略,对地质灾害隐患点定性和定量分析,能够实现早期发现、有效识别。本文通过对九寨沟九道拐滑坡点的研究分析,结果表明无人机载LiDAR和倾斜摄影技术在地质灾害隐患早期识别方面具有较大的应用价值。
  • 图  1  无人机载LiDAR和倾斜摄影模块

    Figure  1.  UAV Li DAR and tilt camera module

    图  2  工作流程图

    Figure  2.  Work flow chart

    图  3  无人机载LiDAR航线规划

    Figure  3.  UAV LiDAR route planning

    图  4  LiDAR数据穿透植被能力分析

    Figure  4.  LiDAR data penetration of vegetation

    图  5  无人机载LiDAR和倾斜摄影数据产品

    Figure  5.  UAV LiDAR and tilt photography data products

    图  6  滑坡DEM衍生因子

    Figure  6.  Derived factor of DEM on landslide

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出版历程
  • 收稿日期:  2020-06-27
  • 修回日期:  2020-09-25
  • 刊出日期:  2021-04-27

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