改进snake模型的人脸拓扑轮廓提取

人脸所在的区域具有拓扑不变性,由此该论文根据大范围优先的原理,对人脸进行拓扑轮廓提取.针对传统的snake模型时初始轮廓点的选取的局限性以及不能很好的收敛于凹形区域,该文在进行人脸轮廓提取的时候,通过人脸特征器官定位,在此基础上确定出snake模型的初始轮廓.其次,使用GVF算法得到的力场作为snake模型的外部力,试...

Facial Topological Contour Extraction with Improved Snake Model

The face has a topological invariant,so based on the stable nature,so this paper used the person's perception of the nature of priority with topology for the face topological contour.Aiming at the limitation that the traditional snake model cannot converge the concave edge,and the original contour must be close to the real edge of the image,this paper successfully combined the face feature organs detection and GVF snake algorithm.Firstly,processed the image by computing the gray level's complexity to mark t...