摘要
提出了改变无人机坐标校准方式,并研究了一种新的图像配准方法,以提高测绘工作的精度。文中采用了两种影像配准方法对比分析,即基于搭载式GPS坐标配准法和基于Google Earth坐标配准法,经过影像采集与图像焦距、主距、径向透镜畸变、切向透镜畸变和亲和力的标定等过程,完成航测影像的处理与航测结果的处理。对比分析结果表明,与基于Google Earth坐标配准法相比,无人机搭载GPS图像配准方法具有更好的测量精度。
This paper proposes to change the coordinate calibration method of UAV.And a new image registration method is studied to improve the accuracy of surveying and mapping.In this paper,two image registration methods are compared and analyzed,which are based on the on board GPS coordinate registration method and the Google Earth coordinate registration method.After image acquisition and image focal length,principal distance,radial lens distortion,tangential lens distortion and affinity calibration,the processing of aerial survey image and the processing of aerial survey results are completed.The comparative analysis results show that,compared with the registration method based on Google Earth coordinates,the registration method of GPS image carried by UAV has better measurement accuracy.
作者
邓科
DENG Ke(The First Branch of Surveying and Mapping of Chongqing Survey Institute,Chongqing 401121,China)
出处
《测绘与空间地理信息》
2020年第12期202-204,207,共4页
Geomatics & Spatial Information Technology
关键词
测绘
相机
精度
摄影测量
surveying
camera
accuracy
photogrammetry
作者简介
邓科(1980-),男,重庆人,助理工程师,本科学历,主要从事城市规划测量等方面的应用研究工作。
