无人机摄影方式及GCPs布设对监测土壤侵蚀能力的影响  

Impact of UAV photography methods and GCPs layout on the ability to monitor soil erosion

作　　者：赖林枫 赵廷宁[1] 魏广阔 胡晋茹[3,4] 芦治源 LAI Linfeng;ZHAO Tingning;WEI Guangkuo;HU Jinru;LU Zhiyuan(School of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;North China Power Engineering Co.,Ltd of China Power Engineering Consulting Group,Beijing 100120,China;China Academy of Transportation Sciences,Beijing 100029,China;CATS Science and Technology Group Co.,Ltd.,Beijing 100088,China)

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]中国电力工程顾问集团华北电力设计院有限公司,北京100120 [3]交通运输部科学研究院,北京100029 [4]交科院科技集团有限公司,北京100088

出　　处：《测绘科学》2025年第1期169-179,共11页Science of Surveying and Mapping

基　　金：交科院科技集团创新发展基金项目(2021-101-09);交科院环境科技(有限公司)服务项目(2023-HXFW-013)。

摘　　要：针对消费级无人机在土壤侵蚀监测中的应用存在不足,以南方丘陵区公路弃土场为实例开展试验,探究摄影方式和控制点布设对消费级无人机构建地形模型精度的影响,系统分析土壤侵蚀监测能力评估指标DODua的大小及其特征。结果表明:消费级无人机的DODua均值随控制点数量增加先减小后稳定,稳定时能达0.03 m,超95%的区域能控制在0~0.05 m内;控制点布设和摄影方式对监测能力的影响存在相互作用,倾斜摄影可以减少监测能力达稳定时的控制点数量,而控制点中心布设方式会“消除”倾斜摄影地形建模优势,边缘均匀中心少量的方式则能优化正射摄影在斜坡(15°~25°)和陡坡(25°~35°)上的监测能力。结果可为消费级无人机精确、高效监测土壤侵蚀提供理论依据与优化指导。In view of the shortcomings of the application of consumer-grade UAV in soil erosion monitoring,this paper takes the highway spoil ground in the hilly area of southern China as an example to carry out experiments to explore the influence of ground control points layout and photogrammetry methods on the accuracy of terrain model constructed by consumer-grade UAV,and systematically analyzes the size and characteristics of the evaluation index of soil erosion monitoring ability DOD_(ua).The results show that the average value of DOD_(ua)of consumer UAV decreases first and then stabilizes with the increase of the number of control points.When it is stable,it can reach 0.03 m,and more than 95%of the area can be controlled within 0~0.05 m;there is an interaction between the layout of control points and the photogrammetry methods on the monitoring ability.Oblique photography can reduce the number of control points when the monitoring ability reaches a stable level,and the layout of the center of the control point will‘eliminate'the terrain modeling advantage of oblique photography,while the way of a small amount of edge uniform center can optimize the monitoring ability of orthophoto photography on slopes(15~25°)and steep slopes(25~35°).The results can improve the theoretical basis and optimization guidance for the accurate and efficient monitoring of soil erosion by consumer-grade UAVs.

关 键 词：消费级无人机 土壤侵蚀监测 无人机摄影测量 控制点 倾斜摄影 精度分析 弃土场 

分 类 号：P237[天文地球—摄影测量与遥感]