[1] automated vessel segmentation using infinite perimeter active contour model with hybrid region information with application to retinal images yitian Zhao, lavdie rada , ke chen, simon p harding, member IEEE transaction on medical imaging, vol. 24, no.10,2015

[2] “Detection and measurement of retinal vessels in fundus image using amplitude modified second order Gaussian filter” G. luo, c.opas, and M.Shankar IEEE Trans.biomed. Eng., vol. 49, pp.168-172, 2008

[3] Cauchy based matched filter for retinal vessel detection Hoosehair zolfagharnasab and Ahmad reza Naghsh-Nilchi in 2014

[4] Improved multi scale matched filter for retinal vessel segmentation using PSO algorithm k.s sreejini and v.k. Govindan in 2015

[5] Image segmentation using Chan vese algorithm by Robert Crandall in 2009

[6] Multi scale vessel enhancement filtering Alejandro F. Frangi, Wiro J. Niessen, Koen L.Vincken, Max A.Viergever

[7] A Ribbon of Twins for extracting vessel boundaries B. Al diri and A. Hunter