Figure 9
From: Automated drusen detection in retinal images using analytical modelling algorithms
Algorithm sensitivity for different parameterizations. This figure represents sensitivity, specificity and kappa coefficient values obtained by the automated method using different threshold values when compared to the ground truth. The results are presented as a ROC curve (a), a plot of the kappa coefficient vs. threshold (b) and a plot of sensitivity vs. threshold (c). The optimal threshold value was considered to be at approximately 18%, corresponding to the maximum of the kappa coefficient.