无人机倾斜摄影测量技术在数字城市三维建模中的应用

Application of UAV Tilt Photogrammetry in 3D Modeling of Digital City

以某城市公共体育馆项目为研究对象,采用无人机倾斜摄影的方法获得该工程项目的航空影像资料,对无人机倾斜摄影获得影像数据的技术要点、数据处理精度以及构建三维模型的具体技术要点展开深层次的研究与分析。论文的研究结果证实无人机倾斜摄影技术能够有效满足数字城市三维建模的实际需求,可以在工程实践中进行大力推广。通过构建数字城市三维模型,不仅能够清晰查看到数字城市的详细信息,也能够依托于二维数据资料进行模型重构,还能够很好地改善数字城市的维护速度,提高用户的实际使用感受,推动现代化城市建设不断发展。无人机倾斜摄影技术具有精准性、经济节约性以及高效率性的优势,在实际进行测量影像采集时需要按照资料整合与准备、进行控制点布设与现场摄影测量、获取影像信息进行。

Taking an urban public gymnasium project as the research object,the aerial image data are obtained by UAV(Unmanned Aerial Vehicle)tilt photogrammetry technology.The technical points of the image data,the data processing accuracy and the specific technical points of constructing 3D model are deeply studied.The research results confirm that UAV tilt photogrammetry technology can effectively meet the needs of 3D modeling of digital city,and can be vigorously promoted in engineering practice.In the 3D model of the digital city,the detailed information of the city can be clearly seen,and the the model can be reconstructed relying on the two-dimensional data,which will well improve the digital city maintenance speed,improve the user’s experience,and promote the continuous development of modern urbanization.UAV tilt photogrammetry technology is precise,economic and highly efficient.In actual surveying image acquisition,the data integration and preparation,controlpointlayout,field photogrammetry and image information acquisition need to be carried out.