TABLE II. Rows 1--5: Quantitative Results of Pneumonia Detection in COVID-19 and Pneumonia Patients Over Three Datasets. Rows 6--9: Comparison of the Severity Scoring Performance Metrics of Our Method After the First/Second Stage With/Without Lung Segmentation Improvement.

1	Dataset 1	0.93	0.86	0.86	0.87	0.85
2	Dataset 2	0.94	0.89	0.90	0.86	0.91
3	Dataset 3	0.98	0.94	0.98	0.92	0.97
4	Dataset 3 [9]	—	0.95	0.95	0.95	0.95
5	Dataset 3 using ResNet50*	—	0.91	0.88	0.98	0.80
6	DLNet-1 + LSNet	0.75	0.38
7	DLNet-2 + LSNet	0.79	0.59
8	DLNet-2 + LSNet-Aug	0.83	0.67
9	Cohen et al. [27]**	0.80	0.60

^*Results are taken from [9].

^**Results are reported only for 50 test images of Dataset 2, the remaining were used for training.