窄带水平集方法

为了提高水平集方法的实用性,降低其计算量,提出了一种新的窄带水平集方法.该方法设计了一种特殊的窄带结构,改进了传统的快速扫描法,并将其用于窄带水平集函数的重新初始化.引入了自适应性到测地线活动轮廓模型,使得演化过程中既能保持稳定性,又能加快演化速度.实验结果表明,该方法降低了用传统窄带水平集方法求解测地线活动轮廓模型的计算复杂度,比传统的窄带水平集方法具有更高的稳定性与求解效率.

Narrow band level set method

To improve the practicability of the level set method and to reduce its computational complexity, a new narrow band level set method is proposed. A special narrow band is devised and the traditional fast sweeping method is improved to reinitialize the level set function of this narrow band. To maintain stability and speed up the pace of evolution, adaptivity is introduced into the geodesic active contour model. Compared with the traditional narrow band method to solve the geodesic active contour model, results of experiment in-dieated this method reduced the computational complexity, and had higher stability and efficiency.