无人机倾斜摄影测量技术在大比例尺地形图测量中的应用

Application of UAV tilt photogrammetry technology in large-scale topographic map survey

在大比例尺地形图测量工作中,相对于传统的方法,无人机倾斜摄影测量技术具有工作周期短、成本低的优点。其工作过程为:首先,通过野外航空摄影建立实景三维模型图;然后,用软件进行立体测图,对不能准确判读的部位进行野外调绘,对影像不清的部位用RTK方法补测数据;最后,对立体测图、调绘和补测数据进行处理,形成地形图。

In large-scale topographic map survey,compared with traditional methods,UAV tilt photogrammetry technology has the advantages of short work cycle and low cost.The work process is as follows:First,establish real 3D model map by field aerial photography;then,use the software to perform stereo mapping,carry out field adjustment and mapping for the parts that cannot be accurately distinguish and read,and use RTK method to supplement the measurement data for the parts with unclear images;At last,the stereoscopic mapping,adjustment and mapping and supplementary survey data are processed to form a topographic map.