采用MATLAB编写B样条绘制程序，可以选择四种节点矢量，采用Deboor算法,详细参看计算机辅助几何设计的书籍(CAGD)-MATLAB used to prepare B-spline drawing program, you can choose the four-node vector, using Deboor algorithm, see the detailed computer-aided geometric design book (CAGD)
In the field of image segmentation, most level-setbased active-contour approaches take advantage of a discrete representation of the associated implicit function. We present in this paper a different formulation where the implicit function is modele
