A Graph-Theoretical Approach for Tracing Filamentary Structures in Neuronal and Retinal Images. - Jaydeep De; Li Cheng 001; Xiaowei Zhang 002; Feng Lin 002; Huiqi Li; Kok Haur Ong; Weimiao Yu; Yuanhong Yu 002; Sohail Ahmed (IEEE Trans. Medical Imaging, 2016)