一种稀少控制条件下的无人机带状地形图生产方法  

A method of UAV strip topographic map production with sparse GCPs

作　　者：骆焕成 李彬彬 LUO Huancheng;LI Binbin(Pan China Construction Group Company Limited, Beijing 100071, China;Xiong’an Academy of Urban Planning and Design, Xiong’an Hebei 071799, China)

机构地区：[1]泛华建设集团有限公司,北京100071 [2]雄安城市规划设计研究院有限公司,河北雄安071799

出　　处：《北京测绘》2022年第3期302-305,共4页Beijing Surveying and Mapping

摘　　要：目前,无人机摄影测量技术已在国民经济建设中得到了广泛应用,在机动灵活的作业模式中,带状地形图生产成为无人机线路工程勘测的重要保障手段。考虑带状地形图测量精度直接影响到线路初步设计,一般需要沿线布设大量地面控制点来保证测量精度,这无疑增加了繁重的外业工作量。本文结合工程实际,探索了应用差分型无人机快速生产带状地形图的方法,在全球定位系统(global positioning system,GPS)辅助空中三角测量过程,引入了稳健的李代数旋转平均技术,进而提高了模型的对地测量精度。实验结果表明,本文采用的无人机带状地形图生产方法配合4个地面控制点,即可满足1∶2000比例尺地形图测图精度要求,有效减少了野外作业工作量,具有一定的工程应用价值。At present,the UAV photogrammetry technology has been widely used in the national economic construction.In the flexible operation mode,the strip topographic map production has become an important means of UAV line engineering survey.Considering that the measurement accuracy of the strip topographic map directly affects the preliminary design of the line,it is generally necessary to lay a large number of ground control points along the line to ensure the measurement accuracy,which undoubtedly increases the heavy field work.Combined with the engineering practice,this paper explored the method of rapid production of strip topographic map by using differential UAV.In the process of GPS aided aerial triangulation,the robust Lie algebra rotation average technology was introduced,and then the accuracy of the model to the groundwas improved.The experimental results showed that the UAV strip topographic map production method combined with four ground control points could meet the mapping accuracy requirements of 1∶2000 scale topographic map,effectively could reduce the workload of field operation,and had certain engineering application value.

关 键 词：无人机 带状地形图 空中三角测量 旋转平均 测量精度 

分 类 号：P284[天文地球—地图制图学与地理信息工程]