摘要
针对传统方法对低分辨率无自动对焦功能摄像头拍摄的QR码图像进行定位提取成功率低的缺点,提出了一种新的QR码定位与提取方法。该方法利用QR码寻像图形轮廓上的特征进行条码定位,然后利用直线最佳逼近法进行边界轮廓的寻找,找出四条边界,最后利用平面坐标变换法将条码图像旋转至水平,形成标准QR码图像,从而完成QR码图像的提取。
According to the fact that the conditional algorithm cannot locate and extract the QR code effectively, a new method of QR code location and extraction is presented in this paper. This method locates the finders of QR code based on the contour features, and then finds the boundary contour with the method of the best line approximation, finally, transforms the image to standard QR code using plane coordinates transform method, and then completes the QR code extraction.
出处
《电子技术应用》
北大核心
2009年第6期47-49,共3页
Application of Electronic Technique
基金
国家自然科学基金重点项目(60634020)
湖南省科技计划项目(05GK2003)
