基于改进的GVF模型的CT图像分割方法

Method of CT Image Segmentation Based on Modified GVF Model

活动轮廓模型被广泛应用于医学图像分割之中.文中针对CT图像的分割方法进行了探讨,提出了一种基于GVF模型的改进的活动轮廓分割法.改进方法采用轮廓中心法及引入一作用力的方法,克服了GVF模型不能处理深度凹陷区域的问题.实验结果表明,改进后的分割方法较原Snake模型及GVF模型的效果更好.

Active contour model is widely used in medical image segmentation. A new modified active contour model based on GVF model is proposed for CT image segmentation. The method by introducing contour center technique and an external force can overcome the problems of segmenting object with the concave regions. The experiment results demonstrate that this method is better than traditional snake models and GVF models.