摘要
地理国情普查和监测是地理国情数据获取的重要环节,传统作业方法难以实现地理国情数据的快速获取和及时更新,而无人机倾斜摄影测量技术能够实现大面积范围的快速三维建模,利用测区三维实景模型进行研究区地理国情数据的高效采集,同时可以对地理国情普查数据进行快速更新。本文通过项目实际应用对无人机倾斜摄影在地理国情普查和监测中的应用进行有效验证,三维模型精度和可靠性分析结果为:研究区三维模型平面和高程中误差分别为0.0362、0.0477 m,相对距离中误差为0.0418 m,满足相关规范和地理国情普查数据的使用要求,验证了无人机倾斜摄影测量技术在地理国情普查和监测作业中的适用性和可靠性。
The survey and monitoring of national geographical conditions is an important link in the acquisition of national geographical conditions data,while the traditional operation method is difficult to achieve rapid acquisition and timely update of national geographical conditions data,while the UAV tilt photogrammetry technology can realize rapid three-dimensional modeling of a large area,and the three-dimensional real scene model of the survey area,which is used to efficiently collect national geographical conditions data of the research area.At the same time,the data of national geographic survey can be updated quickly.Through the practical application of the project,this paper effectively verifies the application of UAV tilt photography in the survey and monitoring of national geographical conditions.The accuracy and reliability analysis results of the three-dimensional model are as follows:The planimetric and vertical MSE of the 3D model in the study area is 0.0362 m and 0.0477 m,respectively,and the MSE of the relative distance is 0.0418 m,which meets the requirements of the relevant specifications and the use of the data of the national geographic survey,and verifies the applicability and reliability of the UAV tilt photogrammetry technology in the national geographic survey and monitoring operations.
作者
王平论
WANG Pinglun(The Fourth Surveying and Mapping Institute of Anhui Province,Hefei 230000,China)
出处
《测绘与空间地理信息》
2023年第10期153-155,共3页
Geomatics & Spatial Information Technology
关键词
无人机
地理国情普查
倾斜摄影测量
三维实景模型
unmanned aerial vehicle
general survey of national geographical conditions
oblique photogrammetry
three-dimensional real scene model
