西部平坦地区快速获取地形图的方法

Method for Quickly Acquiring Topographic Maps in Flat Areas in The West

针对某风电场道路测图项目地形平坦、地物稀少、部分区域人员难以企及、测图难度大的特点,利用无人机航测,通过优化空中三角测量方案,自动匹配生成等高线,提高了线划图生产的自动化程度。实验证明,其处理结果的精度较高,满足1∶2000地形图的测图要求;较传统的立体测图作业模式,生产效率有了明显提高,大幅度地降低了项目生产成本。

In view of the fact that the road mapping project of a wind farm with flat landform, rare features, difficult access to some areas, and difficulty in mapping, UAV aerial survey is used for mapping. Through optimization of the air triangulation scheme and automatically match the contour lines, the survey improved the automation of line drawing production. The experiment proves that the precision of the processing result is high, and it satisfies the mapping requirements of 1∶2000 topographic map;compared with the traditional stereo mapping operation mode, the production efficiency has been significantly improved, and the production cost of the project is significantly reduced.