作者：朱仁欢, 卢一相, 孙冬
作者单位：安徽大学电气工程与自动化学院, 安徽 合肥 230601
关键词：QR码;Hough变换;二值化;连通域
摘要：
针对光照不均匀和背景环境复杂时快速响应矩阵码(quick response code,QR)难以定位以及Hough变换校正不确定性的问题,提出一种新的基于符号特征的QR码提取和校正算法。利用符号特征寻找满足三层包围关系的连通区域图形,从而达到对QR码的定位,利用定位点坐标实现对QR码的校正。实验结果表明:该算法对QR码的定位和校正简单、快速、准确。
Location and correction arithmetic of QR code based on symbol characteristic
ZHU Renhuan, LU Yixiang, SUN Dong
College of Electric Engineering and Automation, Anhui University, Hefei 230601, China
Abstract: With regard to the problem that QR code is difficult for location with vidicon has asymmetrical beam and complex background and correction with Hough transform is uncertainty, a new location and correction arithmetic based on symbol characteristic of QR code is proposed. The connected area which satisfies the three surround relation according to the symbol characteristic is found. This implements the location of the QR code. The QR code is corrected by the coordinates of a location point. The experimental results show that this arithmetic is simple, fast and accurate to location and correction QR code.
Keywords: QR code;Hough transform;binarization;connected area
2015, 41(2): 88-90,95 收稿日期: 2014-3-9;收到修改稿日期: 2014-4-30
基金项目: 国家自然科学基金项目(61303232);河南省教育厅科学技术研究重点项目(13A510758)
作者简介: 朱仁欢(1989-),男,安徽安庆市人,硕士研究生,专业方向为图像处理,模式识别。
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