2Kass M,Witkin A P,Terzopoulos D.Snakes:active contour models[J].International Journal of Computer Vision,1987,1(4):321.
3Xu C Y.Jerry L P.Snake,shapes and gradient vector flow[J].IEEE Trans Image Processing. 1998,7: 359.
4Amini A A,Weymouth T E,Jain R C.Using dynamic programming for solving variational problems in vision[J].IEEE Transaction on Pattern Analysis and Machine Intelligence, 1999, 12(9) : 885.
5Williams D J,Shah M.A fast algorithm for active contours and curvature estimation[J].CVGIP Image Understanding, 1992,55( 1 ) : 14.
