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相机光轴视觉反馈校正研究
Research on Rectification of Camera’s Optical Axis Based on Vision Feedback
【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。
【Abstract】 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 finely 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.
【Key words】 camera calibration; image measurement; rectification of optical axis; visual servoing;
- 【文献出处】 电子科技大学学报 ,Journal of University of Electronic Science and Technology of China , 编辑部邮箱 ,2009年01期
- 【分类号】TB852.1
- 【被引频次】4
- 【下载频次】168