Fig. 9.
AUC values of the (a) RHO, (b) CHO, and (c) ResNet-IO for HR, LR, and SR images. It can be seen that the DL-SR resulted in a small improvement in the CHO performance, but no improvement in the RHO and ResNet-IO performance on the LR images. As such, the observer performance on the HR images is much higher than the performance on the LR and SR images.