摘要
CV模型是一种有效的活动轮廓分割模型,其缺点是分割速度慢.用OTSU法预处理后的区域边界作为CV模型的初始轮廓线,大大提高了分割速度,且该方法能克服传统CV法难以分割壁较厚的内部空洞的不足.在CV模型的能量函数中引入惩罚项,使得CV模型在演化过程中无需重新初始化,进一步提高了分割速度.实验表明改进后的CV模型与传统CV模型相比分割速度有了较大提高,且分割效果更好.
CV model is an effective active contour segmentation model,whose drawback is a slower split.The area boundary after OTSU Pretreatment acts as the initial boundary contour line of the CV model,greatly improving the speed of division,and the method can overcome the deficiency that the conventional CV method is difficult to separate the internal cavity of the thick wall.The introduction of a penalty term to energy function of the CV model makes the CV model evolution without re-initialization,further improving the segmentation rate.Experiments show that the improved CV model can get a better segmentation rate and better segmentation results,compared to the traditional CV model.
出处
《天中学刊》
2011年第5期13-16,共4页
Journal of Tianzhong
