Image detecting method, image detecting system, program, and recording medium for image detection
    3.
    发明授权
    Image detecting method, image detecting system, program, and recording medium for image detection 有权
    图像检测方法,图像检测系统,程序和用于图像检测的记录介质

    公开(公告)号:US06862370B2

    公开(公告)日:2005-03-01

    申请号:US09855665

    申请日:2001-05-16

    IPC分类号: G06T7/60 G06K9/46 G06K9/48

    CPC分类号: G06K9/4604

    摘要: An image detecting method comprises the steps of: a) searching for a pattern satisfying a predetermined commencement requirement by scanning an input image; b) using the pattern as a starting point, with referring to a dictionary storing therein distances between the center line and an edge of a detection target semicircle, determining for each of a predetermined number of main scan lines along a sub-scan direction whether or not a predetermined edge pattern occurs within a respective range of the distance of the dictionary; and c) determining a detection of the semicircle when the number of error lines on which the predetermined edge pattern does not occur within the respective range of the distance of the dictionary is less than a predetermined threshold.

    摘要翻译: 一种图像检测方法包括以下步骤:a)通过扫描输入图像来搜索满足预定开始要求的图案; b)使用该图案作为起始点,参考存储其中心线与检测目标半圆的边缘之间的字典的字典,沿着副扫描方向确定预定数量的主扫描线中的每一条, 在字典的距离的相应范围内不发生预定的边缘图案; 以及c)当在所述字典的距离的相应范围内不发生所述预定边缘图案的错误行数时,确定半圆的检测小于预定阈值。