计算机工程与应用Issue(20)：192-196,5.DOI:10.3778/j.issn.1002-8331.1211-0062
QR码图像几何校正算法的研究
Research on QR code images geometric rectification algorithm
摘要
Abstract
When QR code images are filmed by the camera, the deviation of shooting angle will cause the collected QR code images generate geometric distortion and bring difficulties to QR code recognition. Local threshold method and mathe-matical morphology are used to binarize the collected QR code images which appears uneven illumination. Harris corner detection algorithm and convex hull algorithm are combined to find the outline of the QR code and the point on the out-line, using corner detection algorithm of this paper to find the corner of QR code. Finally, using perspective transformation algorithm to recover the distorted image, the results show that this method is effective to solve the problem of geometric distortion of the QR code.关键词
二值化/角点检测算法/凸包算法/透视变换算法Key words
binarization/corner detection algorithm/convex hull algorithm/perspective transformation algorithm分类
信息技术与安全科学引用本文复制引用
黄珂,薛月菊,陈瑶,陈汉鸣,李鸿生..QR码图像几何校正算法的研究[J].计算机工程与应用,2014,(20):192-196,5.基金项目
广东省教育部产学研结合项目（No.2011B090400527）。 （）
