基于机器视觉技术的盘纸余量检测方法

The Method of Checking the Residual of Bobbin Paper Based on Machine Vision Technology

采用局部采样方式,将灰度化后的图像分割成许多小块,每个小块中盘纸的弯曲弧度忽略不计,可看成是平直的,分别对每个小块垂直投影,采用差分法查找计算出盘纸宽度。剩余盘纸的长度可精确到每一圈,避免了以往剩余几十圈的浪费。

This paper adopts the partial sampling method to divide the grayed image into many small pieces, each of which can be seen as straight with curvature being neglected. These pieces are then projected vertically one by one to calculate the width of the paper using method of difference. In this way, the length of the remaining paper can be less than one circle, compared to more than scores of circles prior to the application of this method.