Affine invariability of contour structure tensor
Zhang Xiao-hongb · Jisuanji yingyong yanjiu · 2012
This paper proved the affine invariability of contour structure tensor by studying the algebraic properties of its determinant: the extreme points described by the determinant of the contour structure tensor under the affine transform remain no change.It only influenced the response of each point on the contour by scale transform and independent of translation and rotation transform.Finally,experiment results verify the high stability of the algorithm based on contour structure tensor by comparing its repeatability with some classical contour corner detection algorithms.