光束法空中三角测量数据处理及精度分析

Data Processing and Precision Analysis of Aerial Triangulation by Beam Method

空中三角测量的精度是无人机在摄影测量过程中的重要指标,像片处理中各环节都影响摄影成果的质量,空中三角测量的方法是其重要的影响因素。目前空中三角测量方法有三种,其中光束法区域网平差更为严密,应用也最为广泛。介绍光束法平差中解决一般粗差点及特殊粗差点的处理方法,并通过实例分析了控制点数量对成果精度的影响。

The accuracy of aerial triangulation is an important indicator of UAV in photogrammetriy proc ess, each link will affect the quality of photo processing in photography, and aerial triangulation methods is the important influencing factors. There are three kinds of the aerial triangulation methods, among which bundle block adjustment is more rigorous, and is also widely used. This paper introduces the general and special gross error processing methods to solve bundle adjustment, and analyses the influence of the number of control points on the accuracy of the results.