Vision inspection system
    1.
    发明授权
    Vision inspection system 失效
    视力检查系统

    公开(公告)号:US4581762A

    公开(公告)日:1986-04-08

    申请号:US572570

    申请日:1984-01-19

    IPC分类号: G06T7/00 G06K9/46

    CPC分类号: G06T7/001 G06T2207/30164

    摘要: A vision inspection system operable with foreground illumination provides user identification of selected regions of a known object for later comparison to an unknown object. A gray scale pixel array of each selected region is processed for edges and this processed data array is stored as a template for each region. Gray scale illumination data from larger corresponding areas of the unknown object are processed for edges to form gradient maps. The first template is iteratively compared to the first gradient map. A correlation value greater than a threshold value causes the system to examine the second and possibly third gradient maps on the unknown object. Distance and angular relationships of the regions are used to both identify and orient the object under test. Once the unknown object is identified and its orientation determined, various visual attributes and measurements of the object can be determined through use of visual tools.

    摘要翻译: 可用前景照明操作的视觉检查系统提供用户识别已知对象的选定区域,以便稍后与未知对象进行比较。 对于边缘处理每个所选区域的灰度像素阵列,并且将该处理的数据阵列存储为每个区域的模板。 针对未知对象的较大对应区域的灰度照明数据进行边缘处理,形成梯度图。 将第一个模板与第一个梯度图进行迭代比较。 大于阈值的相关值导致系统检查未知对象上的第二和第三梯度图。 区域的距离和角度关系用于识别和定向被测物体。 一旦识别出未知对象并确定其方向,就可以通过使用可视化工具确定对象的各种视觉属性和测量。