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    • 6. 发明申请
    • Method and apparatus for determining the vertices of a character in a two-dimensional barcode symbol
    • 用于确定二维条形码符号中的角色的顶点的方法和装置
    • US20060043189A1
    • 2006-03-02
    • US10930596
    • 2004-08-31
    • Sachin AgrawalDerek KwokMohanaraj ThiyagarajahIan Clarke
    • Sachin AgrawalDerek KwokMohanaraj ThiyagarajahIan Clarke
    • G06K7/10
    • G06K7/14
    • A method of determining the vertices of a character in a two-dimensional barcode symbol image includes tracing a contour around a character. The contour is examined and pixels therealong believed to be vertices of the character are determined. The relative positions of the determined pixels are compared to determine if they satisfy a threshold. If the relative positions of the determined pixels satisfy the threshold, the determined pixels are designated as the vertices of the character. If the relative positions of the determined pixels satisfy the threshold, the determined pixels are designated as the vertices of the character. If the relative positions of the determined pixels do not satisfy the threshold, new pixels along the contour are selected using geometric relationships between the determined pixels to replace determined pixels that are not vertices of the character.
    • 确定二维条形码符号图像中的角色的顶点的方法包括在字符周围追踪轮廓。 检查轮廓,并确定被认为是角色的顶点的像素。 比较确定的像素的相对位置以确定它们是否满足阈值。 如果所确定的像素的相对位置满足阈值,则将所确定的像素指定为角色的顶点。 如果所确定的像素的相对位置满足阈值,则将所确定的像素指定为角色的顶点。 如果确定的像素的相对位置不满足阈值,则使用确定的像素之间的几何关系来选择沿着轮廓的新像素,以替换不是字符顶点的确定像素。