秦修功,陈曦,杨辽,曹良中,段永超,赵翠晓

• 1:中国科学院新疆生态与地理研究所
• 2:中国科学院大学

摘要(Abstract)：

与三角翼相比,无人机航摄影像像幅小、模型连接性差、质量轻、航摄时姿态不稳定;这些因素导致无人机航摄影像成图精度较差。为了解决该问题,传统航测方法在每两张航摄影像间布设大量控制点,增强模型刚性;GPS辅助空中三角测量通过提高曝光点的点位精度,可以减少控制点的个数,但是由于无人机像幅小,控制点约束范围小,因而仍然需要大量的控制点。针对以上问题,文章在GPS辅助空中三角测量的基础上,通过布设架构航线,进而实现增加影像之间的重叠度,增强模型刚性的目的,从而实现在减少控制点个数的同时,保证无人机航摄影像区域网平差精度的提高。实验表明,该方法与单纯的依赖GPS辅助空三技术相比,在精度相近的基础上能够减少约50%的控制点布设数量,大大减少了外业工作量。

关键词(KeyWords)： 无人机航空影像;GPS辅助空中三角测量;构架航线;区域网平差

Abstract:

Keywords:

基金项目(Foundation): 国家“863”项目(2013AA122302)

作者(Author): 秦修功,陈曦,杨辽,曹良中,段永超,赵翠晓

DOI: 10.16251/j.cnki.1009-2307.2017.01.027

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