Computer-Aided Diagnosis of COVID-19 CT Scans Based on Spatiotemporal Information Fusion

Table 2

Features of decision tree.

Feature	Definition
Slice_Num	The number of slices with the lesion area
Lesion_AreaSum	The total area of lesion area
Lesion_AeraMax	The largest lesion area
Lesion_MaxPosition	The position of the slice with the largest lesion in the CT scan
Slice_NumPercent	The ratio of the number of slices with lesions to the total number of slices
Lesion_MaxPercent	The ratio of the largest lesion area to the lung area of that slice
Lesion_SumPercent	The ratio of the sum of lesion area to the sum of lung area in the slice with lesion
Lesion_AllSumPercent	The ratio of the total area of the lesion to the total area of the lung