Abstract: This paper presents a calibration system，which adopts a method named direct calibration for intrinsic parameter of camera by the use of reference object. The whole system is implemented under VC++ by the help of IPL and OpenCV. With an image of reference object, the intrinsic parameter can be computed and displayed accurately in a minute by the system. The authors came to a conclusion of its validity by 3D reconstruction experiments. Compared with the Matlab procedure, it is a swifter system which can be used conveniently.

Key words: Camera calibration, Intrinsic parameter, VC++, IPL, OpenCV

摘要： 系统采用的是直接标定摄像机内部参数的算法，算法借助于标定参照物直接计算摄像机的内参数。整个系统是在VC++环境下设计并实现的，并借助了IPL和OpenCV的帮助，只要输入标定物的图像，系统就可以迅速而又准确地输出摄像机内参数的结果。通过3D重构实验证明了该系统的有效性。相对于MATLAB实现方式，该系统使用更加方便、快捷。

关键词: 摄像机标定, 内部参数, VC++, IPL, OpenCV