一种简单易行的摄像机标定方法

提出一种适用于电视测量系统中的方便的投影参数求取方法，主要着眼于方法的易用性，并在此基础上设计出了一套用于自动测量船模运动参数的电视测量系统。它首先利用测试卡上的方格线求出摄像机镜头的变形修正系数，然后利用已知的5个地面坐标与图像中的对应点的关系求出摄像机的标定参数。根据上述两步得出的参数，可以通过图像上的任何一个像素点计算出其在地面上的对应坐标值。实验证明，本文提出的方法是有效的，且能够比较方便地解决视觉监控中摄像机标定的问题。

A Simple and Easy Video Calibration Method

A method suitable for getting projection parameters in TV measurement system conveniently is proposed in the paper, its easy application is focused. On the basis, a set of TV measurement system for measuring ship model motion parameters automatically is designed, in which the check lines of measuring card are used to obtain the intrinsic parameters of video camera lens, then the relationship between the five known points in space plane and their corresponding points in image plane is used to obtain outside parameters of video camera. According to these obtained parameters, real positions in space plane can be computed by image. Experiments indicate that this method is effective and easy to give solutions for video camera calibration in visual surveillance.