3Kass M,Witkin A,Terzopoulos D. Snakes.. Active Contour Models[J].Int. J. Comput. Vis,1987,1: 321-331.
4Xu C Y,Jerry L. Prince. Snakes, Shapes,Gradient Vector Flow [ J ]. IEEE Transactions on Image Processing,1998,7(3) :359-369.
5Cohen L D. On Active Contour Models and Balloons[J]. CVGIP.. Image Understand, 1993, 53 (2) : 1131-1147.
6Cohen L D, Cohen I. Finite Element Methods for Active Contour Models and Balloons for 2D and 3D Images [J]. IEEE Trans. on Pattern Analysis and Machine Intelligence, 1993, 15(11): 211-218.
7Leroy B. Multi-resolution Algorithms for Active Contour Models [A]. The 12th Int. Conf. on Analysis and Optimization of Systems [C ], 1996.
8Xu C, Prince J L. Gradient Vector Flow: A New External Force for Snakes [A]. IEEE Proc. of Conf. on Computer Vision and Pattern Recognition [C],1997: 66-71.
9Laurent D C. On Active Contour Models and balloons [J ]. CVGIP: Image Understanding, 1991, 53(2) : 211-218.
10Cremers D, Tisehhauser F, Weickert J, et al. Diffusion Snakes: Introducing Statistical Shape Knowledge Into the Mumford-Shah Functional[J]. Int. J. Comput. Vis,2002,50:295-313.
