Improved 3D U-Net for COVID-19 Chest CT Image Segmentation

Table 1

Comparison of results obtained using 3D CU-Net and 3D U-Net.

	Lung_left			Lung_right			Lesion
	DSC	Sens	Spec	DSC	Sens	Spec	DSC	Sens	Spec
3D U-Net	0.925	0.943	0.997	0.948	0.959	0.997	0.705	0.707	0.999
3D CU-Net; Ours_1: α = 0.5, β = 0.5	0.966	0.968	0.998	0.964	0.975	0.997	0.778	0.738	0.999
3D CU-Net; Ours_2: α = 0.3, β = 0.7	0.960	0.969	0.998	0.963	0.966	0.998	0.771	0.837	0.998