Figure 3

Coronavirus Disease 2019 (COVID-19) lesion subtyping results of three cases with different parenchymal involvement (from top to bottom, 74 year old man, 59 year old woman, 69 year old man, from extensive to little involvement). Nonenhanced CT scans in the axial view (left column) overlaid with the automatic lesion subtyping segmentation (second column) and the corrected scans by the two observers (3rd and 4th columns) are shown. Colors correspond to healthy parenchyma (green), ground glass opacities (yellow) and consolidation (reddish).