APPARATUS AND METHOD TO LOCATE AN OBJECT
    67.
    发明公开
    APPARATUS AND METHOD TO LOCATE AN OBJECT 有权
    VORRICHTUNG UND VERFAHREN ZUM FINDEN EINES OBJEKTS

    公开(公告)号:EP1436779A1

    公开(公告)日:2004-07-14

    申请号:EP02781235.3

    申请日:2002-10-10

    CPC classification number: G06T7/74 G06T2207/30072 G06T2207/30204

    Abstract: Method and arrangement to locate an object with a predetermined number of marks, the arrangement comprising a light source, a sensor and a processor, by means of the following steps:- illuminating the object with the light source;- receiving an image of the object and generate image pixel data including image pixel locations and image pixel intensities for each image pixel location with said sensor;- receiving the image pixel data and storing them in a memory;- comparing said image pixel intensities with a predetermined threshold;- determining object position based on said comparing;- using a digital match mask that corresponds with said object with said marks;- finding a best match between said digital match mask and said object on said object position;- determining mark positions within said object position from said best match.

    Abstract translation: 用于通过以下步骤来定位具有预定数量的标记的物体的方法和装置,所述装置包括光源,传感器和处理器: - 用所述光源照亮所述物体; - 接收所述物体的图像 并且生成包含图像像素位置和图像像素强度的图像像素数据的图像像素数据,用于与所述传感器相对应的图像像素位置; - 接收图像像素数据并将其存储在存储器中; - 以预定阈值比较所述图像像素强度; - 确定对象位置 基于所述比较; - 使用与所述对象具有所述标记的数字匹配掩码; - 在所述对象位置上找到所述数字匹配掩码和所述对象之间的最佳匹配; - 从所述最佳匹配确定所述对象位置内的标记位置 。

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