一种保持拓扑结构的隐式活动轮廓图像分割方法

提出一种保持拓扑结构的图像分割方法, 通过应用一个限制拓扑结构的边缘检测函数替代经典的边缘检测函数, 抑制了活动轮廓的拓扑结构变化. 活动轮廓模型采用基于水平集方法的隐式结构, 数值离散采用加性算子分裂(AOS)格式. 结果表明, 所提出的方法能有效地保持轮廓的拓扑结构， 并且具有较高的计算效率.

A Topology Preserving Segmentation Method for Implicit Active Contour Models

A novel topology preserving segmentation model was proposed.The proposed model prevents active contour models from geometrical or topological changes by using a topological constraint edge detector instead of the classical edge detector.The implicit scheme based on level set method is applied and an additive operator splitting(AOS) scheme is adopted.The result shows that the proposed method can effectively maintain the topology of the contours and cost less additional computing time.