The invention provides a method for monitoring micro-deformation of a river levee through radar point cloud comparison, and belongs to the technical field of micro-deformation monitoring of the river levee. According to the technical scheme, a radar ground base station is arranged, and the posture of the base station is marked; an unmanned aerial vehicle is used for mounting a laser radar to scan a river levee riding track, and a radar three-dimensional model is established; recovering the radar ground base station and the attitude thereof; the unmanned aerial vehicle flies twice again, the laser radar is mounted for the first time, the orthographic camera is mounted for the second time, the same river, canal and dam section is scanned, and a radar three-dimensional model and an orthographic model are established; comparing the radar three-dimensional models of two times of scanning, and positioning a potential river levee deformation area; a false deformation area is removed through a filtering and denoising algorithm, and finally a real deformation area is positioned; and mapping the deformation area to an orthograph in the orthographic model for visual display. The method has the beneficial effects that the unmanned aerial vehicle radar is used for scanning the river levee to carry out comparison and automatic micro-deformation monitoring.
本发明提供了一种利用雷达点云比对监测河堤微变形的方法,属于河堤微变形监测技术领域。其技术方案为:设置雷达地面基站,并标记基站的姿态;用无人机挂载激光雷达扫描河堤马道,建立雷达三维模型;恢复雷达地面基站及其姿态;再次用无人机进行两架次飞行,一次挂载激光雷达,第二次挂载正射影相机,扫描同一段河渠堤坝,并建立雷达三维模型和正射模型;比对前后两次扫描的雷达三维模型,定位潜在河堤变形区域;通过滤波去噪算法,去除虚假变形区域,最终定位真实变形区域;将变形区域映射到正射模型中的正射图上进行直观展示。本发明的有益效果为:利用无人机雷达扫描河堤进行比对的微变形自动监测。
Method for monitoring micro-deformation of river embankment by using radar point cloud comparison
一种利用雷达点云比对监测河堤微变形的方法
2023-02-03
Patent
Elektronische Ressource
Chinesisch
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