【摘要】 在实际应用中,Data Matrix二维条形码的解码效果会受到不均匀光照和复杂背景的影响。为此,提出一种层次化的Data Matrix实时解码方法。利用大津法将条码图像的前景和背景进行分割,得到二值化的条码图像,对其进行区域定位和精确定位。在此基础上,设计基于数字信号处理的二维条形码快速解码终端。实验结果表明,该解码方法具有较好的实时性和较高的鲁棒性。更多还原

【Abstract】 Un-uniform illumination and complex background will influence Data Matrix 2D barcode decoding effect in real application situation.Aiming at this problem,this paper proposes a hierarchical method of Data Matrix real-time decoding.The method implements barcode region segmentation from background with Otsu algorithm to get the binary barcode image.It coarsely localizes the barcode region and achieves fine-level localization,and develops a terminal for real-time Data Matrix decoding based on Digital Signal Processing(DSP).Experimental results demonstrate that the method is real-time and robust.更多还原