摘要
针对传统地籍测量方法效率低、成本高、测量周期长等问题,本文探讨了一种基于无人机摄影测量技术的地籍测量方法。首先,在航线规划时,采取了一种构架航线设计方案,提升影像之间的系统关联度,使影像匹配更加充分;其次,在空中三角测量过程,为高效发挥差分无人机定位优势,考虑采用最佳摄站坐标权值下的辅助光束法平差策略;最后,将生产的数字地表模型(DSM)应用于地籍图矢量采集当中,并开展相应的精度分析。经实验验证,本文的无人机构架航线设计方法能协助完成任务区完整的地籍测量任务,在确定最佳摄站坐标权值后,无需野外控制点即可满足1∶500比例尺地籍图生产精度要求,大大提高了测量效率,具有较强的工程应用价值。
Aiming at the problems of low efficiency,high cost and long measurement cycle of traditional cadastral survey methods,this paper discusses a cadastral survey method based on UAV photogrammetry technology.Firstly,in route planning,a framework route design scheme is adopted to improve the system correlation between images and make image matching more sufficient.Then,in the process of aerial triangulation,in order to give full play to the positioning advantages of differential UAV,the adjustment strategy of auxiliary beam method under the optimal coordinate weight of photographing station is considered.Finally,the digital surface model(DSM)is applied to the vector acquisition of cadastral map,and the corresponding accuracy analysis is carried out.The experimental results show that the UAV framework route design method in this paper can help complete the complete cadastral survey task in the mission area.After determining the coordinate weight of the best photographing station,the production accuracy requirements of 1∶500 scale cadastral map can be met without field control points,which greatly improves the measurement efficiency and has strong engineering application value.
作者
陈川南
CHEN Chuannan(Chinese Land Surveying and Planning Institute,Beijing 100035,China)
出处
《测绘与空间地理信息》
2024年第4期210-213,共4页
Geomatics & Spatial Information Technology
