摘要
提出了一种检测长焦距大型CCD相机主点位置变动的新方法。其基本原理是:使用与相机CCD共面的2个检测用小面阵CCD采集光斑,并利用光斑质心算法计算光斑质心相对于检测CCD的位置变动,进而得出相机CCD在像面内的移动情况,最终得到主点位置的变化。该方法结构简单,容易实现,实验验证了此方法的可行性。
A new detecting method of principal point for large-scale camera with long focal distance has been proposed in this article. Two small array CCDs are attached to the plane of the camera＇ s CCD to record the light spots. With the help of the centroid-detecting method, the movement of the camera＇ s CCD is measured. Then the position of the principal point is computed. The whole measuring system is characterized of simple structure as well as easy realization, and the experiment show that the proposed method is feasille.
出处
《北京机械工业学院学报》
2008年第4期17-19,共3页
Journal of Beijing Institute of Machinery
基金
北京市属市管高等学校人才强教计划资助项目(PXM2007_014224_044674)
北京市重点实验室(机电系统测控)开放课题(KF2008112305)
关键词
面阵CCD
主点
质心探测
array CCD
principal point
centriod-detecting
