C-V活动轮廓模型的一个注记  

Remark on C-V active contours model

作　　者：申小娜[1] 林琼[1] 

机构地区：[1]后勤工程学院基础部,重庆400016

出　　处：《计算机工程与应用》2010年第32期182-184,共3页Computer Engineering and Applications

摘　　要：Chan-Vese提出的"无边活动轮廓"模型(C-V模型)是一个著名的基于区域的图像分割模型,它是基于Mumford-Shah泛函和二值PC函数(目标区域取一个值,背景区域取另一个值)解决图像分割问题的。在C-V模型中,定义能量泛函的面积项的系数被要求为非负值,这个要求限制了模型适用的范围。实验研究表明:面积项系数取负值时,C-V模型能够分割某些原来不适用的图像。The ＂active contours without edges＂ model proposed by Chan and Vese（C-V model）is one of the well-known region-based image segmentation models.The C-V model employs the well-known Mumford-Shah functional to deal with the prob-lem of image segmentation by using piecewise constant representation.In this model,the weight parameter of the area term in the energy functional is chosen to be a nonnegative constant;however,this restriction may limit the applicability of the model in some applications.The empirical research shows that the C-V model with negative area parameter can segment some images that the original C-V model is not applicable to.

关 键 词：图像分割 活动轮廓 C-V模型 水平集 偏微分方程 

分 类 号：TP911.73[自动化与计算机技术]