TABLE II. Detailed Information of Multi-Source Dataset.
| Centre | No. of CT Volumes | No. slices | Slice thickness (mm) | Matrix size | Pixel spacing (mm) | |
|---|---|---|---|---|---|---|
Hospital #1 
|
305 | 38–629 | 0.625–7.5 | 512×512 | 0.604–0.977 | |
Hospital #2 
|
741 | 79–547 | 1.0–1.25 | 512×512 | 0.580–0.912 | |
Hospital #3 
|
144 | 47–553 | 1.0–5.0 | 512×512 | 0.330–0.977 | |
| Training | Hospital #4 
|
217 | 125–407 | 1.0–1.5 | 512×512 | 0.387–0.977 |
Hospital #5 
|
291 | 156–591 | 0.6–1.5 | 512×512 | 0.324–0.977 | |
Hospital #6 
|
201 | 29–131 | 5.0 | 512×512 | 0.430–0.977 | |
Hospital #7 
|
274 | 56–950 | 0.6–2.0 | 512×512 | 0.396–0.977 | |
| Test | Hospital #8 
|
568 | 65–710 | 0.6–3.0 | 512×512 | 0.342–0.998 |
, 
, 
Indicate the COVID-19, CAP and non-pneumonia, respectively.