摘要
将无人机与GPS-RTK引入河道断面测量。首先,使用无人机拍摄河道研究区影像,同时采用GPS-RTK技术测量控制点坐标及河流深度;然后,基于无人机数字摄影测量技术实现相机标定、图像匹配和密集点云生成;最后,构建河道DEM模型并实现河道断面图的自动绘制。与传统方法相比,该方法操作简单、工作量小、作业效率高,可实现对大范围河道断面的快速测量,从而为摸清河道现状、维护河道健康提供准确的基础调查数据。
UAV(Unmanned Aerial Vehicle)and GPS-RTK are introduced into river crosssection survey.Firstly,UAV was used to take the images covering river study area,and GPS-RTK technology to measure the coordinates of control points and river depth.Then,camera calibration,image matching and dense point cloud generation were realized based on UAV digital photogrammetry technology.Finally,the DEM model of river was constructed and the river cross section was automatically drawn.Compared with the traditional methods,this method has the advantages of simple operation,low workload and high efficiency.It can realize the rapid measurement of river cross sections in wide area.Accurate basic survey data can be provided for understanding the current situation of the river and maintaining the health of the river.
作者
杨朝辉
伍尚荣
陈国栋
YANG Zhaohui;WU Shangrong;CHEN Guodong(School of Environmental Science and Engineering,SUST,Suzhou 215009,China)
出处
《苏州科技大学学报:自然科学版》
CAS
2020年第2期65-70,共6页
Journal of Suzhou University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(41301361)
江苏省自然科学基金资助项目(BK20141182)
苏州市科技计划项目(SYN201510)
苏州市社会科学基金资助项目(Y2019LX033)。