Fig. 5

Visualization of the separability for the embedding features learned by the CDACNN and DenseNet in the internal test dataset via t-SNE. Different colored point clouds represent the different categories. “Normal” indicates normal cornea. “Others” indicates cornea with other abnormalities. Conj_Cor conjunctiva and cornea, t-SNE t-distributed stochastic neighbor embedding, CDACNN cost-sensitive deep attention convolutional neural network