摘要
针对双眼视觉传感器三维型面测量系统 ,介绍了一种利用平面标靶实现系统标定的方法 .标定过程无需辅助设备 ,仅要求两个摄像机同时拍摄一幅标定板图像 ,利用标定板上的控制点计算左右图像对应的单应性矩阵 .结合进化策略优化左右主像点 ,从单应性矩阵中获得测量系统的其他标定参数 .同传统定标方法相比 ,该方法简单、快捷 。
A simple field calibration technique is described to calibrate binocular vision senor for 3D measurement. The technique only requires two cameras to observe a planar pattern shown at one position, and it does not need assistant structures. There are many control points printed on the planar pattern to compute the homographic matrixes between the model and its images. By combining evolutionary optimization strategies to get the principal points of the two cameras, the focal lengths and the external parameters can be computed from the homographic. The proposed technique is simple and easy to use, and is applicable to field calibration.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2004年第2期114-117,共4页
Journal of Beijing University of Aeronautics and Astronautics
关键词
测量
双眼视觉
标定
优化策略
Binocular vision
Calibration
Contour measurement
Optical sensors
Optimization
Three dimensional
