Process to detect and count yarn defects having a color background and a
camera
    1.
    发明授权
    Process to detect and count yarn defects having a color background and a camera 失效
    用于检测和计数具有彩色背景和相机的纱线缺陷的过程

    公开(公告)号:US5420439A

    公开(公告)日:1995-05-30

    申请号:US211149

    申请日:1994-03-22

    IPC分类号: G01N21/89 G01N33/36 G01N21/88

    CPC分类号: G01N33/365 G01N21/8915

    摘要: A process and device to detect and count yarn defects in a yarn segment including a camera (5), a computer (8) and an image processing program. The yarn (30) is illuminated with an intensity dependent upon the thickness of the yarn (30) and is photographed by the camera (5). The photographed image is digitalized in the computer with the image processing program and low-contrast points are filtered out. The remaining points are gathered together into coherent areas the sizes of which are classified into predetermined size classes and are stored.

    摘要翻译: PCT No.PCT / EP92 / 02005 Sec。 371日期:1994年3月22日 102(e)1994年3月22日PCT PCT 1992年9月1日PCT公布。 出版物WO93 / 06466 日期:1993年4月1日。一种用于检测和计数包括照相机(5),计算机(8)和图像处理程序的纱线段中的纱线缺陷的方法和装置。 纱线(30)以取决于纱线(30)的厚度的强度被照射,并且由照相机(5)拍摄。 拍摄的图像在计算机中通过图像处理程序数字化,低对比度点被滤除。 其余的点被聚集在一起成为相关区域,其尺寸被分类为预定大小类别并被存储。