摘要
提出了基于视觉伺服的相机光轴反馈校正法,将图像的线性畸变与非线性畸变相分离,先采用多幅模板图像对相机进行高精度标定,获得相机非线性系数;根据这些系数经反复迭代后消除非线形畸变;再利用线性畸变,引入反馈环节精细调节相机至精确位置。该方法不需要特殊的导引装置,很好地解决了相机光轴的高精度校正问题。
A new method to rectify the optical axis based on visual servoing is given in this paper. This method separates the linear distortion from the non-linear distortion. Firstly, the non-linear distortion is removed through iterations on the basis of the non-linear distortion coefficients obtained by accurately calibrating camera with many pattern images. Then the position of the camera is f'mely adjusted by a way of feedback elements according to the linear distortion without special guiding equipment. With the help of this method, finally the problem of rectification of optical axis is perfectly solved.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2009年第1期157-160,共4页
Journal of University of Electronic Science and Technology of China
关键词
相机标定
图像测量
光轴校正
视觉伺服
camera calibration
image measurement
rectification of optical axis
visual servoing