Table 5.

Summary of different segmentation methods used in COVID-19 detection

Segmentation methods	Papers	Count
U-Net	[12–14, 17, 18, 38, 40, 61, 62, 66, 73, 74, 76, 77, 80, 81]	16
3D U-Net	[3, 76]	2
VB-Net	[75, 83]	2
DeepLab	[17]	1
NABLA-N	[16]	1
Dense-Net	[41, 68]	2
SegNet	[98, 99]	2
MiniSeg	[19]	1