摘要
以惠州市惠东县1∶1000地形图测绘项目为例,利用无人机获取高精度正射影像图,结合外业像控点,采用INPHO软件完成空三加密,通过影像自动匹配和人工干预编辑生成数字高程模型(DEM),最后生成数字正射影像(DOM);将DOM与测绘成果图进行叠加分析,快速精准地判读出地形图存在的质量问题,提高工作效率。实验数据验证无人机技术在1∶1 000大面积地形图测量成果检查验收中的可操作性和实用性,为1∶1 000地形图成果质量检查提供一种可行的技术手段。
This paper, taking 1∶1 000 topographic map of huidong county as an example,uses the UAV to obtain high-precision orthophoto images. INPHO software is used to complete the three-space encryption combining with the field control points, and the digital elevation model(DEM) is generated through automatic image matching and manual intervention editing, and finally the digital orthophoto image(DOM) is generated. By adding the DOM and mapping results to a superposition, the quality problems of the topographic map can be quickly and accurately interpreted, thus improving the work efficiency. The experiment verifies the operability and practicability of UAV in the inspection of 1∶1 000 large area topographic map measurement results, and provides a feasible and reliable technical means.
作者
张灯军
郭军
ZHANG Dengjun;GUO Jun(The Seventh Geological Team of Guangdong Geological Bureau, Huizhou 516000, China;Key Laboratory of Seabed Mineral Resources, Ministry of Land and Resources, Guangzhou Marine Geological Survey, Guangzhou 510760, China)
出处
《测绘工程》
CSCD
2019年第4期64-67,共4页
Engineering of Surveying and Mapping
关键词
无人机
1∶1000地形图
数字正射影像
空三加密
叠加分析
unmanned aerial vehicle
1∶1 000 topographic map
digital orthophoto map
aerial triangulation
analysis overlay analysis
