TABLE 3.

Ablation studies with different network configurations.

Index	Baseline	CD	AS	ISAM	PIBL	SE (%)	SP (%)	ACC (%)	F1 (%)	AUC (%)
1	√					78.95	98.75	97.01	82.27	98.72
2	√	√				78.36	98.78	96.99	82.00	98.66
3	√	√	√			79.67	98.73	97.06	82.60	98.80
4	√	√	√	√		80.11	98.70	97.07	82.73	98.80
5	√	√	√		√	81.79	98.48	97.02	82.76	98.80
6	√	√	√	√	√	82.51	98.44	97.04	83.01	98.81

Baseline: Res-UNet; CD, Cascade Design; AS, Auxiliary Supervision; ISAM, Inter-Stage Attention Module; and PIBL, Pixel-Importance-Balance Loss. The value in bold is the highest value under that metric.