基于正十二边行平面模板的摄象机自标定

给出一种基于平面模板摄象机自定标的新算法。它利用正十二边形模板在象平面上的投影 ,求解出圆环点 ,然后根据圆环点的性质确定两个关于摄象机内参数线性约束方程。通过摄象机作三次以上的运动参数未知的刚体运动 ,可确定摄象机的内参数。本方法对摄象机的运动没有约束 ,且平面模板易于制作。模拟实验和真实图象实验也表明 ,本方法具有很好的鲁棒性。

A Plane Pattern of Equilateral - dodecagon Based Camera Self- Calibration

In this paper, we discuss a new method for camera self-calibration based on a plane pattern of equilateral-dodecagon. The basic principle of the method is to use the image of the plane pattern to get the absolute point, and then obtain two linear equation on the intrinsic parameter of the camera according to the character of the point. By control the camera to undergo more than three times of unknown motion, we can calibrate the camera. This method is no stringent to the camera's motion and it's very easy to make the pattern. Computer simulations and real image experiments indicates that it has fair good robustness.