利用无人机影像制作超大范围DOM

DOM Production in Extra Large Area by UAV Images

无人机影像经过处理,可以获取数字正射影像产品。以甘肃某地区超大范围DOM的生产为例,论述了利用PPS后差分系统支持下的CW-30无人机获取数字航空影像,同时加入外业像控点,在集群式影像处理Inpho8.0软件下,制作1∶2 000 DOM过程。成果目视检查表明,影像质量良好。精度检测表明,空中三角测量成果的检查点平面中误差为0.272 m,高程中误差为0.234 m;DOM的地物特征点的平面中误差为0.336 m,能够达到相应规范要求。

The digital orthophoto map(DOM)production could be obtained by using UAV images.Taking DOM production project in extra large area of a district in Gansu province,this article discusses 1∶2000 DOM production process using the digital aerial images obtained by CW-30 UAV based on PPS post differential system with the field image control points on the cluster image processing software Inpho8.0.The results show that the images have fine quality through visual inspection.The DOM accuracy also reaches the relative specification requirements with the planimetric RMSE of 0.272 m and vertical RMSE of 0.234 m in the aerial triangulation result,and planimetric RMSE of element feature points is 0.336 m on the DOM.