Before revision:  Moreover, we also introduce a way to build objective simple closed contours , each of which is treated as the concatenation of two disjoint open paths . Experimental results prove that the proposed model indeed outperforms state-of-the-art minimal paths-based image segmentation approaches.
After revision:  Moreover, we also introduce a way to build objective simple closed contours , each of which is treated as the concatenation of two disjoint open curves . Experimental results prove that the proposed model indeed outperforms state-of-the-art minimal paths-based image segmentation approaches.