Skip to main content
. 2022 Jun 13;23:22. doi: 10.1186/s40510-022-00413-8

Fig. 4.

Fig. 4

Each 3D upper airway model obtained from semi-automatic segmentation was superimposed to its ground truth model (manual segmentation) in order to reliably remove the lowermost area of the nostrils. A, B) Superimposition between GS and semi-automatic models, using a global surface-based registration method; C, D) Cutting plane for exclusion of the lowermost area of the nostrils