摘要
搭建双目平行系统完成对物体的距离测量。经过图像采集、摄像机标定、立体校正、立体匹配四个步骤得到被测物体的视差图,从而求得被测物体的三维坐标。利用两种匹配算法来进行立体匹配,为使结果对比明显,在以往黑白视差图的基础上,输出彩色视差图。同时,为提高匹配精度,做了去噪和光照对比实验。最后,对测量实验进行误差分析,以验证实验结果的准确性。结果证明:误差范围控制在1 mm之内,是有效可行的。
Set up binocular parallel system to measure the distance of the object.It takes four steps of image acquisition,camera calibration,stereo correction and stereo match to obtain that disparity map of the object to be tested,so as to obtain the three-dimensional coordinates of the object to be measured.Using two matching algorithms to make stereo matching,and in oeder to make the result contrast obvious,the color parallax image is outputted on the basis of the previous black and white parallax images.At the same time,in order to improve the matching accuracy,a comparison experiment of denoising and illumination has been done.Finally,error analysis of the measurement experiment is carried out to verify the accuracy of the experimental results.The reasults show that the error range is controlled within 1 mm,it is effective and feasible.
作者
吴保烁
赵立宏
WU Baoshuo;ZHAO Lihong(College of Mechanical Engineering,University of South China,Hengyang 421001,China)
出处
《电视技术》
2018年第7期100-103,共4页
Video Engineering
关键词
双目视觉
摄像机标定
立体匹配
误差分析
binocular vision
camera calibration
stereo matching
the error analysis
