０７年的一个ＩＥＥＥ文献．传统的snake是确定一组参数来调整内外力的平衡，本文应用非参数snake把获得参数这一困难的问题转化为求边界的一个好的概率密度估计问题-In 2007 an IEEE literature. Traditional snake is to determine a set of parameters to adjust the balance of power both inside and outside, this paper, non-parametric sna