AIoT Used for COVID-19 Pandemic Prevention and Control

Figure 3

Chest CT images of laboratory-confirmed COVID-19 patients and 1 healthy subject. Patients’ GGOs are highlighted with red borders, and normal subjects’ GGOs are highlighted with green borders. (a–c) Lung CT images of COVID-19 patients in the early, advanced, and absorptive stages, respectively; (e–g) the parts of GGO in these three stages, respectively; (d) a CT scan of a normal lung; (h) a local magnification of a normal lung.