基于opencv的单目视觉测量系统的研究

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英文篇名：Research on Monocular Vision Measurement System Based on OpenCV 作者：马晓东 ; 蒋明 ; 柯善浩 ; 曾晓雁 ; 胡乾午 英文作者：Ma Xiaodong;Jiang Ming;Ke Shanhao;Zeng Xiaoyan;Hu Qianwu;Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology; 关键词：OpenCV ; 线结构光 ; 机器视觉 ; 轮廓检测 英文关键词：OpenCV;;line structured light;;computer vision;;contour detection 中文刊名：JZCK 英文刊名：Computer Measurement & Control 机构：华中科技大学武汉光电国家实验室; 出版日期：2015-12-25 出版单位：计算机测量与控制 年：2015 期：v.23;No.207 语种：中文; 页：JZCK201512010 页数：4 CN：12 ISSN：11-4762/TP 分类号：41-43+47

摘要

介绍一种基于机器视觉的测量工件宽度的新方法,在开源计算机视觉库OpenCV的支持下,设计并实现一种对工件宽度进行动态实时测量的系统;为了降低其它光的影响,在CCD镜头下面固定一块红光滤光片,系统通过采集经红光线激光器投射的工件图像,对图像进行二值化、截取感兴趣区域、轮廓提取等处理,最后实现工件宽度的自动测量;对不同尺寸的工件进行了自动测量实验,实验结果表明,采用的测量方法在实际工件测量中是可用的,整个测量过程用时在100 ms左右,最大相对误差不超过1.5%。
        A new method of measurement about the width of the workpiece based on the computer vision was introduced.Under the support of the open source computer vision library OpenCV,designing and implementing a dynamic real—time measurement system on the width of the workpiece.In order to reduce the effects of other light,a red filter was fixed under the CCD camera,by grabing the photo of the workpiece with the structured light that the red line laser projected,the system takes measures to deal with the image binarization、the interception of region of interest、 contour extraction and so on,and finally realizes the automatic measurement.In the automatic measurement experiment on the different size of workpieces,the experimental results show that the method used in this paper is available in the actual workpiece measurement,the entire measurement process takes about 100 milliseconds,the maximum relative error does not exceed 1.5%.

引文

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