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基于机器视觉的不规则烟包校对码垛系统

Irregular cigarette parcel stacking system coupled with machine vision-based parcel identification

  • 摘要: 针对烟草物流中不规则烟包码垛的复杂性和组合匹配的特性,设计了一种基于机器视觉的不规则烟包校对码垛系统。该系统包括组合码垛系统和视觉识别系统两部分,通过视觉系统对不规则烟包图像进行处理得到目标二值图,提取烟包的角点特征进行特征点匹配,利用改进的RANSAC算法剔除误匹配点,实现烟包的识别匹配,再依据上位机的预排层算法进行码垛作业。现场测试结果表明:烟包匹配正确率在97%以上,特征提取时间不超过360 ms/次,总匹配时间不超过1.6 s,实现了不规则烟包的准确校对和组合码垛。该方法可为提高烟草物流自动化水平提供支持。

     

    Abstract: Aiming at the complexity of irregular cigarette parcel stacking in tobacco logistics, a system which combined cigarette parcel checking and stacking was designed. The system was composed of a parcel stacking system and a machine vision-based identification system. The identification system processed the image of irregular cigarette parcel to obtain target's binary image, extracted the corner point features of cigarette parcel to conduct feature point matching, and rejected the erroneously matched points via modified RANSAC algorithm to identify cigarette parcels. Then cigarette parcels were stacked following the pre-layering algorithm of host computer. The results of on-site test showed that the accuracy of cigarette parcel matching was over 97%, the time for feature extraction was less than 360 ms, the total time for parcel matching was less than 1.6 s. This method provides a support for promoting the automation of tobacco logistics.

     

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