| 用于QR码自动识读的图像分析方法 |
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| 引用本文： | 孙明,傅隆生,杨信廷,张树槐.用于QR码自动识读的图像分析方法[J].电子科技大学学报(社会科学版),2009(6). |
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| 作者姓名： | 孙明 傅隆生 杨信廷 张树槐 |
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| 作者单位： | 中国农业大学传感器与检测技术研究所;国家农业信息化工程技术研究中心;日本弘前大学农学生命科学部; |
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| 基金项目： | 国家863计划(2006AA10Z265) |
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| 摘 要： | 对于所采集的条码图像,为了适应实时性的要求,以得到不同光照条件下的最佳阈值,该文提出了把直方图双峰法、OTSU法及NLNiblack阈值法结合起来的改进的自适应阈值法。实验证明了该方法具有高效性和稳定性。为了在条码分割图像中获取QR码的4个顶点,首先,根据3个位置探测图形的特性提出了一种新的方法以求取对应的3个顶点,同时利用QR码的特征提出挖空算法获取条码的边缘,再采用过已知点的Hough变换得到第4个顶点。实验证明该算法在各种采集条件下可有效地得到QR码的4个顶点。
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| 关 键 词： | 二值图像 几何学 Hough变换 图像分析 快速响应码 |
Image Analysis Method for QR Code's Automatic Recognition |
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| SUN Ming,FU Long-sheng,YANG Xin-ting , ZHANG Shu-huai.Image Analysis Method for QR Code's Automatic Recognition[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2009(6). |
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| Authors: | SUN Ming FU Long-sheng YANG Xin-ting ZHANG Shu-huai |
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| Institution: | SUN Ming1,FU Long-sheng1,YANG Xin-ting2 , ZHANG Shu-huai3(1.Institute of Sensoring Technology,China Agricultural University Haidian Beijing 100083,2.National Engineering Research Center for Information Technology in Agriculture Haidian Beijing 100097,3.Faculty of Agriculture , Life Science,Hirosaki University Hirosaki Japan 036-8561) |
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| Abstract: | For collected barcodes images,an image analysis method with the ability of locating,segmenting,correcting and recognizing the QR code is introduced.In order to meet real-time demands and obtain the optimal thresholds under various lighting conditions,we propose an improved adaptive thresholding,which is proved with high efficiency and high stability.In order to get the four corner points of QR code in the segmentation of barcode,a new algorithm is presented to obtain three points among those corner points a... |
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| Keywords: | binary images geometry hough transforms image analysis quick response code |
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