关键词: 图像分割, 活动轮廓模型, 水平集

Abstract:

This paper focuses on two different GAC models:Li Chunming model based on gradient information and C-V model based on region information.In light of the drawbacks and advantages of these two models,we introduce penalty-function to C-V mode,and propose a C-V model without re-initialization.A comparison between the two models shows that the proposed model incorporates the segmentation speed of Li Chunming model and the segmentation performance of C-V model.

Key words: image segmentation;active contour model;level set