Fig. 5.

Visualization of surface distances for a COVID-19 subject, a CAP subject, and a healthy control subject. All the volumes were resampled with a fixed voxel spacing of 1mm and a slice thickness of 1mm. The color bar indicates the surface distances. The areas highlighted by circles represent the areas with a smaller surface distance acquired by SP-V-Net (Row 2) than those by MC-V-Net (Row 3) and by plain V-Net (Row 4). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)