采用V势阱函数的距离归一化水平集算法

DISTANCE REGULARISED LEVEL SET METHOD USING V-POTENTIAL WELL FUNCTION

针对距离归一化水平集算法存在速度下降和弱边缘不敏感的问题,在双势阱函数的基础上提出一种新的V势阱函数。该函数统一了演化速度的数学表达形式,在避免零势阱修正的同时,降低了零势阱附近的演化速度。实验结果表明:与双势阱函数相比,V势阱函数具有更好的速度和弱边缘检测性能。

The paper puts forward a new type of V-potential well function based on double-potential well function of distance regularised level set method aiming at the problems of speed decline and weak edge insensitivity the method has.The function unifies the mathematic expression of evolution speed,slows down the evolution speed nearby the zero-potential well while avoiding the remedy of zero-potential well.Compared with double-potential well,the experimental results show that V-potential well has better speed and the performance of weak edge detection.