利用共线点求解多摄像机内外参数

Using Collinear Points Solving Intrinsic and External Parameters of Multiple Cameras

文中利用运动中共线点的几何特性来获得多摄像机的内外参数。首先,由空间中共线点与图像点之间的对应矩阵来得到对内参数的线性约束,获得了多个摄像机的内参数;然后,根据共线点在摄像机组中各个摄像机下运动前后的坐标,获得摄像机相对于基准摄像机的旋转矩阵和平移向量,以求出摄像机的外参数;最后,进行模拟数据实验和真实图像实验,结果表明了该方法的可行性和有效性。

The thesis used the geometric characteristics of collinear points to get the intrinsic parameters of the came-ras.Firstly,the homographic matrix between space collinear points and its image points is used to get the linear constraints of the intrinsic parameters and the intrinsic parameters for multiple cameras.Then,according to the coordinates of collinear points before and after movement in each camera,the rotation matrix and translation vector of the camera relative to the reference camera are obtained,and the outside parameters of the cameras are solved.Finally,simulation data and real image experiments show the feasibility and effectiveness of this method.