TABLE IX. Averaged Figures of Merit Over All 704 Chest CT Images (Test Cases) Considered in Experiment 3. The Best Results Are Shown in Bold.

Model	Class	Sensitivity	Specificity	Accuracy	Dice Score
UNet	Abnormal	0.960	0.985	0.985	0.657
	Normal	0.916	0.998	0.984	0.951
ENet	Abnormal	0.864	0.972	0.970	0.464
	Normal	0.845	0.994	0.968	0.902
UNet++	Abnormal	0.951	0.983	0.983	0.628
	Normal	0.913	0.997	0.982	0.947
SegNet	Abnormal	0.884	0.946	0.945	0.325
	Normal	0.699	0.995	0.945	0.813
Attention UNet	Abnormal	0.931	0.989	0.988	0.704
	Normal	0.941	0.998	0.988	0.964
LEDNet	Abnormal	0.872	0.981	0.979	0.559
	Normal	0.906	0.983	0.970	0.912
DeepLabV3+	Abnormal	0.845	0.906	0.905	0.209
	Normal	0.489	0.990	0.904	0.637
Anam-Net (Proposed)	Abnormal	0.937	0.986	0.986	0.664
	Normal	0.927	0.998	0.985	0.956