摘要
阐述了IMU/DGPS辅助飞思相机进行航空摄影测量直接地理定位的基本方法,通过检校场飞行对航测系统进行系统误差校正,采用大量地面检查点数据对直接定位精度进行分析。结果表明,在没有地面控制点的情况下,该摄影测量系统能满足1∶500航测制图的精度要求,从而大幅减少了外业像控测量工作,极大地提高了航空摄影测量的效率。
In this paper,we introduced the basic approach of direct georeferencing which used PhaseOne camera supported by IMU/DGPS technology to perform aerial photogrammetry.We revised the system errors of aerial photogrammetry by flight of calibration field,and analyzed the precision of direct georeferencing by mass data of ground checking points.The result shows that this system is able to satisfy the required precision of 1 :500 aerial mapping without any ground control point,which can decrease the field survey of control points largely,and improve the efficiency of aerial photogrammetry greatly.
出处
《地理空间信息》
2021年第1期65-67,70,I0006,共5页
Geospatial Information
