Table 7. The cost of computation resource and the segmentation accuracy on the REFUGE test set of the proposed method based on the ResNet-101 and the modified ResNet-101, respectively. The segmentation accuracy is the average Intersection over Union (IoU) of the optic disc and optic cup.

Backbone	Training time (second/epoch)	Testing time (second/image)	Parameters (M)	FLOPs (G)	IoU (%)
ResNet-101	69	0.4	67.69	53.22	87.76
Modified ResNet-101	104	0.5	109.31	78.05	95.28