Preprint Open access
Observer Choice and Threshold Selection in Retinal Vessel Segmentation: A Subject-Separated Evaluation
The annotation used to select a segmentation threshold is part of the evaluation protocol, yet its effect is easily conflated with model quality. We examine this choice for retinal vessel segmentation using all 28 CHASE DB1 images and both human annotations. A fixed seven-fold protocol keeps both eyes of each of the 14 …