胡智宏,李军涛.平移匹配在倾斜条码快速识别中的应用研究[J].包装工程,2014,35(19):130-134.
HU Zhi-hong,LI Jun-tao.Application Research of Translation Matching in Inclined Barcode Fast Recognition[J].Packaging Engineering,2014,35(19):130-134. |
| 平移匹配在倾斜条码快速识别中的应用研究 |
| Application Research of Translation Matching in Inclined Barcode Fast Recognition |
| 投稿时间：2014-01-17 修订日期：2014-10-01 |
| DOI： |
| 中文关键词: 一维条码 图像处理 行程编码 平移匹配 |
| 英文关键词: one-dimensional barcode image processing run-length encoding translation matching |
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| 中文摘要: |
| 目的 为解决一维条码在倾斜情况下识别困难、效率低等问题，提出了采用平移匹配的一维条码识别方法。 方法 首先对条码图像做常规图像预处理和行程编码， 然后选择2条能够平移匹配的平行扫描线， 利用 2条扫描线与条码条或空的相交点推算条码的倾斜度， 依据倾斜度寻找垂直于条码的最佳扫描线， 再次对条码图像进行扫描并解码， 进行样品条码测试， 在 C++ Builder 6环境下， 实现了提出的条码识别算法。 结果 经实验验证， 该方法在图像条码任意倾斜的情况下， 均能有效识别且准确识别率可达到 98%以上。 结论 相对于传统方法计算量有明显下降， 识别速度有显著提高， 执行时间一般在 5 ms 以内 。 |
| 英文摘要: |
| Objective In order to solve the problems of the difficulty and low efficiency in the recognition of one-dimensional barcodes under tilt conditions, a recognition method using the matching translation was proposed. Methods Firstly, the image of barcode underwent conventional preprocessing and run-length encoding, and then two parallel matched lines were selected. The intersections of the two parallel scanning lines and the barcode strip or empty crosspoint were used to calculate the slope of the barcode, then the best barcode scanning line could be achieved using the slope. Finally, the barcode could be scanned again and successfully decoded. Tests of sample barcodes were conducted. In the environment of C++ Builder 6, the barcode recognition algorithm was realized. Results The experiments proved that the method could effectively identify the barcodes under any tilt conditions and the correct recognition rate could reach higher than 98% . Conclusion Compared to the traditional method, the calculation amount was obviously reduced, the recognition speed was significantly improved, and the recognition time was less than 5 ms generally. |
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