孔位图像识别技术在数控牙刷植毛机中的应用

Application of the Hole-Position Image Identification Technique to the NC Machine for Toothbrush-Hair Planting

为提高数控牙刷植毛机加工过程程序输入的准确性及效率,采用扫描仪获得牙 刷头部孔位图像,利用图像识别技术、数据处理技术及VisualC++.NET软件,经过图像 读入、图像定位、中值滤波、图像轮廓提取、图像清理及孔位参数计算等过程,生成了数控 牙刷植毛机程序.实验结果表明,本处理方法是可行而有效的,其识别精度能满足实际生 产要求,可准确、快捷地实现牙刷孔位数据的测量,缩短数控牙刷植毛机的辅助加工时间.

In order to improve the programming accuracy and efficiency during the NC machining process by toothbrush-hair-planting machines, a hole-position image of the toothbrush head was firstly obtained with the help of a scanner. Then, based on the image identification technique, the data processing technique and the platform of Visual C++.NET, a program of the NC machining by toothbrush-hair-planting machines was generated. This process includes the aspects of image inputting, edge position limitation of the image, median filtering, outline distillation, image regularity and calculation of the hole parameters. The experimental results show that the proposed method is feasible and effective, with a precision that can meet the production requirements. It can be used to locate the hole position accurately and rapidly, thus lessening the time cost of the supplementary machining.