Title :
A parabola fitting edge operator by the moments
Author :
Xu, D.H. ; Shu, H.Z. ; Bao, X.D. ; Zhang, H. ; Dillenseger, J.-L. ; Luo, L.M.
Author_Institution :
Lab. of Image Sci. & Technol., Southeast Univ., Nanjing, China
Abstract :
This paper presents a moment-based method for two-dimensional (2D) edge detection. A quadratic curve (e.g. parabola) is used to fit the image boundary. The edge parameters including the background level, the gray level step along the contour, distance of the edge from the center of the mask, and the orientation of the edge are estimated by computing the moments up to the second order. Experimental results are presented to valid the effectiveness of the proposed method.
Keywords :
edge detection; feature extraction; medical image processing; method of moments; image boundary; moment-based method; parabola fitting edge operator; quadratic curve; two-dimensional edge detection; Anisotropic magnetoresistance; Data mining; Image edge detection; Laboratories; Laplace equations; Noise robustness; Paper technology; Shape;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1279843
