数码相机控制点的自动定位检校  

Automatic positioning calibration of control points for digital camera

作　　者：刘正坤[1] 林宗坚[2] 苏国中[2] 

机构地区：[1]中国能源建设集团广东省电力设计研究院,广州510663 [2]中国测绘科学研究院,北京100039

出　　处：《测绘科学》2014年第3期89-93,共5页Science of Surveying and Mapping

摘　　要：为简化控制场相机检校中的人工量测控制点的繁琐工作,提高相机检校精度,本文提出一种方法:只需均匀量测少量控制点的像方坐标获取相机检校初始参数,便可通过动态模板匹配实现单影像相机检校的控制点高精度自动定位检校。实验证明此方法检校精度与人工量测检校精度相近。To simplify the tedious handwork of image control points coordinate measurement for cam- era calibration in the control field, and improve the camera calibration accuracy, this paper introduced a method which only needs to evenly measure a small amount of image control points to obtain initial camera calibration parameters, and then use dynamic template matching technology to achieve high-precise auto- matic positioning for single image camera calibration. This calibration accuracy was proved to be close to that of the artificial measurement of control points.

关 键 词：CCD相机 动态模板 相关系数 椭圆拟合 共线方程投影差值 

分 类 号：P231.2[天文地球—摄影测量与遥感]