基于中点检测的二维条码识别

条码边缘模糊会导致其识别率下降，本文提出了一种基于中点检测的识别算法，能有效地解决边缘模糊对条码识别的影响．文中以PDF417条码为例研究了基于中点检测的二维条码识别算法．首先定位出图像上的条码，然后再在条码中分割出单个码字符号图像．文中最后根据分割出来的单个码字符号图像着重讨论了基于中点检测的识别算法．实验结果表明基于中点检测的识别算法具有良好的性能，显著地提高了条码的识别率，满足了实际使用的要求．

Recognition of Two-dimension Barcode Based on Midpoint Detection

The blurred edge causes the decrese of the barcode recognition rate. A novel recognition algorithm based on midpoint detection is proposed in this paper. This novel algorithm can resolve the problem caused by the blurred edge. In the paper,we use PDF417 as an example to discuss the algorithm. The position of barcode is located from the image at first.Then the image is further segmented to locate the single codeword image.At last,the algorithm based on midpoint detection is discussed as an important topic.The result shows that the performance of the novel algorithm based on modpoint detection is good. It can achieve higher recognition rate, which suffices to the requirement of the practical use.