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    • 8. 发明授权
    • Shape detection and ellipse fitting of a polygon
    • 多边形的形状检测和椭圆拟合
    • US09292755B2
    • 2016-03-22
    • US14637216
    • 2015-03-03
    • Joshua Victor Aller
    • Joshua Victor Aller
    • G06K9/46G06K9/32G06T7/00B42D15/00G06K9/62
    • G06K9/3216B42D15/00G06K9/3275G06K9/4638G06K9/4652G06K9/62G06K2009/3225G06T7/73G06T2207/30204
    • A method of shape detection detects a figure with a contouring loop method that extracts at least one iso-contour polygon from a set of pixels in an image using a triangular lattice superimposed over the set of pixels of the image. Then starting from an original triangle, the iso-contour polygon is extracted by selecting an intensity chroma value within the set of pixels between three corners of a triangle to find a directed line segment that represent the crossing of the intensity value within the triangle, and an exit point of the directed line segment and a nearest triangle which contains the next directed line segment of the at least one iso-contour polygon are determined to create a first matrix of points on the at least one iso-contour polygon, until arriving at the original triangle.
    • 形状检测的方法利用轮廓循环方法检测图形,其使用叠加在图像的像素组上的三角形格子来从图像中的一组像素中提取至少一个等轮廓多边形。 然后从原始三角形开始,通过选择三角形三角之间的像素组内的强度色度值来提取等高线多边形,以找到表示三角形内的强度值交叉的有向线段,以及 确定所述有向线段的出口点和包含所述至少一个等轮廓多边形的下一个有向线段的最近三角形,以在所述至少一个等轮廓多边形上创建点的第一矩阵,直到达到 原来的三角形。