Retrieving challenging vessel connections in retinal images by line co-occurrence statistics.

"This project has received funding from the European Union’s 7th Framework Programme, Marie Curie Actions-Initial Training Network, under Grant Agreement No. 607643, “Metric Analysis For Emergent Technologies (MAnET).” It was also supported by the Hé Programme of Innovation, which is partly financed by the Netherlands Organization for Scientific research (NWO) under Grant No. 629.001.003. Part of the funding (that is the development of the mathematical theory part) was received from the European Research Council under the European Community’s 7th Framework Programme (FP7/2007-2014)/ERC Grant Agreement No. 335555. We would like to show our gratitude to Dr. Gonzalo Sanguinetti who provided insight and expertise that greatly assisted the research and improved the manuscript."