Contour matching based on curvature feature
Zhang Zhi-gang, Zhou Shu-cheng, Jun Ma, Luo Yang-xia · Computer Engineering and Applications Journal · 2008
Contours are first represented by polygonal approximation.Next,curvature of polygonal vertices are calculated by Hermite interpolation.Finally,contour matching is measured by Hausdorff distance.For geometrical characters of contour have been taken advantage,this method is invariant to rotation and has better performance on precision and speed.