无人机倾斜摄影技术在地质灾害监测中的应用

Application of UAV Tilting Photography Technology in Geological Disaster Monitoring

针对福建省地区地质灾害调查与评估需求,本研究提出一种基于无人机倾斜摄影影像的地质灾害信息多维提取的方法。该方法采用大疆M300RTK无人机搭载4 500万像素的大疆P1数码相机进行航摄数据采集,对倾斜摄影技术在地质灾害监测中的应用进行研究,并对其精度进行讨论。研究结果表明:该系统在空间有限、不同角度、空间分辨率高的情况下,通过实景三维摄影技术对地质灾害进行预警和监测,并用无人机倾斜摄影技术对其进行立体模型化,从而减少现场测量的工作量,极大提高工作效率。

Aiming at the needs of geological disaster investigation and evaluation in Fujian Province, this study proposes a multi-dimensional extraction method of geological disaster information based on UAV oblique photography images. This method uses DJI M300 RTK UAV equipped with DJI P1 digital camera with 45 million pixels to collect aerial data, studies the application of oblique photography technology in geological disaster monitoring, and discusses its accuracy. The results show that under the condition of limited space, different angles and high spatial resolution, the system can carry out early warning and monitoring of geological disasters through real scene three-dimensional photography technology, and use UAV oblique photography technology to carry out three-dimensional modeling, so as to reduce the workload of field measurement and greatly improve the work efficiency.