复杂背景中模糊条形码的定位  

Blurry barcode locating in complex background

作　　者：张万鹏[1] 谢松云[1] 姜官祥 何华兵[1] 王潇 

机构地区：[1]西北工业大学电子信息学院,西安710129 [2]烟台华威电气有限公司,烟台264006 [3]中原油田技术监测中心设备检测站,濮阳457001

出　　处：《国外电子测量技术》2013年第3期75-79,共5页Foreign Electronic Measurement Technology

基　　金：国家自然科学基金(61273250);陕西省教育厅科研计划(S2011GY1242);西北工业大学研究生创业种子基金(Z2012078)资助项目

摘　　要：仪表智能监控中,首先需要自动获取所监控仪表的信息。为了适应条码模糊以及背景多变的影响,提出了高通滤波后二值化的方法和利用形体学开运算来快速有效定位条形码的方法。该方法首先对图像进行高通滤波,去除背景光照不均对二值化的影响,然后进行形态学开运算并二值化,将条形码腐蚀膨胀成矩形条,根据矩形条的特征定位出条形码。实验表明文中提出的条形码定位算法具有很好的鲁棒性。In intelligent monitoring system,the first step is to obtain information of instruments by reading its bar code. In order to locate blurry bar code robustly with background change,a method based on high pass filter and morphology was proposed. Firstly, a high-pass filter is applied to reduce the uneven illumination. After that, Mathematical Morphology and binary operation are needed to make the bar to be a rectangular block. Then it is easy to locate the bar code by features of the rectangular block. The results of experiments show that the algorithm has good performance and robustness.

关 键 词：条形码 智能监控 定位 复杂背景 不均匀光照 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]