Table 6.

Comparison of performance between U-Net [14], 3D-U-Net [3], SegNet [25], and O-Net on the task of segmenting COVID-19 Ct-scan.

Model	PixAcc	Dice	IoU	Prec	Sen.	Spec.	G-mean
U-Net [14]	0.949	0.749	–	–	0.956	0.9542	0.955
3D-U-Net [3]	–	0.648	–	–	–	–	–
SegNet [25]	0.954	0.583	–	–	0.964	0.948	0.956
O-Net	0.995	0.866	0.764	0.998	0.984	0.708	0.834