Table 1.

The statistical data of the three public COVID image datasets. Unit: image.

Dataset		Train		Test
		Pos	Neg	Pos	Neg
COVID-CT	Original	251	292	98	105
	After FAA	502	584	98	105
SARS-Cov-2	Original	939	923	313	307
	After FAA	1878	1846	313	307
COVID-19_Radiography_Dataset	Original	2712	7644	904	2548
	After FAA	5424	15,288	904	2548