西南交通大学学报2011，Vol.46Issue(5)：808-813,6.DOI:10.3969/j.issn.0258-2724.2011.05.016
无地面控制点无人机影像的相对定向方法
Relative Orientation Method of UAV Images without Ground Control Points
摘要
Abstract
In order to solve the problem of low accuracy in image relative orientation due to the posture instability of unmanned aerial vehicle (UAV) , a method to generate UAV image strips and constitute pair of stereoscopic images based on POS (position and orientation system) data was proposed. In accordance with the principle of relative orientation, UAV POS data were used as the priori constraint in relative orientation and adjusted with error equations to reconstruct the cost function and conduct the relative orientation of images. In order to verify the validity of this method, it was compared with the conventional relative orientation method. The experimental results show that it can raise the accuracy of relative orientation by 10% to use UAV POS data as the priori constraint. Especially to images with large distortion, the orientation accuracy can be improved greatly.关键词
无人机影像/相对定向/POS/先验约束条件Key words
UAV ( unmanned aerial vehicle) image/ relative orientation/ POS ( position and orientation system)/ priori constraint分类
天文与地球科学引用本文复制引用
唐敏,李永树,何敬..无地面控制点无人机影像的相对定向方法[J].西南交通大学学报,2011,46(5):808-813,6.基金项目
“十一五”国家科技支撑计划重大项目(2006BAJ05A13) （2006BAJ05A13）
