Table 1.

Different datasets.

Paper	Model	Data source
[8]	VGG-16/DenseNet/ResNet	Images of 88 COVID-19 patients in Wuhan People's Hospital
[24]	ResNet/ShuffleNet DenseNet/MobileNet	These 127 COVID-19 X-ray images were shared by a postdoctoral fellow at the University of Montreal
[26]	VGG-16	A total of 1248 CXR images were obtained from two public datasets, which included 215 images of COVID-19 patients
[9]	VGG-16/GoogleNet/ResNet-50	53 CT images of infected persons provided by the Italian Radiology Association
[27]	ResNet/DenseNet/Inception	CXR images were obtained from two public datasets, which include 236 images of COVID-19 patients
[28]	Inception/ResNet50/MobileNet	Images of 349 confirmed patients and 397 healthy people
[11]	ResNet	The lung CT image data of 157 patients from Chinese hospitals and the United States
[12]	ResNet18	The 618 CT images used were collected from the First Affiliated Hospital of Zheijiang University including 219 images of COVID-19 patients
[13]	Inception/ResNet50/Attention ResNet50	The 1136 (723 COVID-19 positive) training samples were collected from five hospitals including Wuhan Leishenshan Hospital.
[16]	ResNet/DenseNet	The dataset was provided by the Italian Society of Medical and Interventional Radiology
[21]	SqueezeNet	The dataset was provided by the Italian Society of Medical and Interventional Radiology