首页 | 本学科首页   官方微博 | 高级检索  
     

基于链码跟踪的Data Matrix二维条码快速识别
引用本文:徐义钊,白瑞林,余震虹,吉峰. 基于链码跟踪的Data Matrix二维条码快速识别[J]. 计算机应用, 2012, 32(11): 3206-3209. DOI: 10.3724/SP.J.1087.2012.03206
作者姓名:徐义钊  白瑞林  余震虹  吉峰
作者单位:1. 江南大学 轻工过程先进控制教育部重点实验室,江苏 无锡 2141222. 江南大学 智能控制研究所3. 无锡信捷电气有限公司,江苏 无锡 214072
基金项目:江苏高校优势学科建设工程资助项目(PAPD);江苏省科技成果转化项目(BA2011032)
摘    要:为实现工业现场中Data Matrix二维条码的快速识别,提出一种基于链码跟踪、直线段提取的条码快速识别方法。首先采用Sobel算子提取图像边缘;然后基于链码跟踪方法,跟踪图像的边缘点,记录链码;接着根据快速直线段提取方法,将直线相似度低于阈值的线段剔除,结合线形连接方法合并断裂线段,并使用长度判别剔除不可靠的线段;最后结合Data Matrix二维条码的特征,定位Data Matrix二维条码。实际测试表明,该识别方法能够快速、准确地定位二维条码区域,识别正确率可达99.39%以上,具有实时性强、可靠性好等特点,满足工业现场要求。

关 键 词:二维条码  Data Matrix  链码跟踪  直线段提取  线形连接  
收稿时间:2012-05-13
修稿时间:2012-06-18

Quick identification of Data Matrix two-dimensional bar code based on chain code tracking
XU Yi-zhao,BAI Rui-lin,YU Zhen-hong,JI Feng. Quick identification of Data Matrix two-dimensional bar code based on chain code tracking[J]. Journal of Computer Applications, 2012, 32(11): 3206-3209. DOI: 10.3724/SP.J.1087.2012.03206
Authors:XU Yi-zhao  BAI Rui-lin  YU Zhen-hong  JI Feng
Affiliation:1.Key Laboratory of Advanced Process Control for Light Industry(Ministry of Education),Jiangnan University,Wuxi Jiangsu 214122,China; 2.Xinje Electronic Company Limited,Wuxi Jiangsu 214072,China)
Abstract:A two-dimensional bar code recognition method based on chain code tracking and straight line segment extraction was proposed in order to realize quick identification of the Data Matrix two-dimensional bar code in the industrial field. Firstly, the Sobel operator was used to extract the edge of image. Secondly, the image edge points were tracked and chain codes were recorded based on chain code tracking method. Thirdly, line segment whose straight line similarity was below the threshold was removed with fast straight line segment extraction method. The fracture line was combined with the linear connection method and the unreliable line was excluded by length discrimination. Finally, the Data Matrix bar code was located with the characteristics of the Data Matrix two-dimensional bar code. The application test shows that the two-dimensional bar code area can be quickly and accurately located by the recognition method with the recognition rate of 99.39%. The proposed method is ready to meet the requirements of industrial field with strong real-time ability and high reliability.
Keywords:two-dimensional bar code   Data Matrix   chain code tracking   straight line segment extraction   linear connection
本文献已被 CNKI 等数据库收录!
点击此处可从《计算机应用》浏览原始摘要信息
点击此处可从《计算机应用》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号