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。
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.