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Matlab implemetion for "Level set evolution without re-initialization: a new variational formulation."

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ustc_dia-levelset_method's Introduction

USTC_DIA Homework1: Levelset-method

Matlab implemetion for "Level set evolution without re-initialization: a new variational formulation." CVPR, 2005.

注:本代码依据zhyx12的代码修改。

新增文件

作业要求:依据作业压缩包提供的参考代码,实现新的演化方程,完成图像分割。

修改增加文件如下:

my_demo.m #主函数

my_evolution_cv.m # 演化方程的实现

my_edge_indicator.m # 即演化方程的g,可参考论文3.2.第一段的描述

my_Delta.m # 新的Delta函数

运行说明

my_demo.m为主函数,其中line 18可以修改输入图片,line 37-40可修改参数。

关键参数有3个,lambdamunu。依据论文Fig. 3的描述和Fig. 4的描述,对不同输入图片使用不同参数。

实验结果

除”vessel.bmp”外,其余输入图像的分割效果均较好。

可能有用的链接

关于水平集分割:https://www.zhihu.com/question/22608763/answer/46883386

关于符号距离函数(Signed Distance Function):https://blog.csdn.net/lusongno1/article/details/122024440

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