关键词: 图像分割, 水平集, 测地线活动轮廓, 保持拓扑结构, 限制拓扑结构, 加性算子分裂

Abstract:

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.

Key words: image segmentation, level set, geodesic active contour, topology preservation, topological constraint, additive operator splitting(AOS)