Fig. 3
Description of variation in data set. (1) Airway with significant congestion, resulting in filled inferior meatus. (2) Airway with four meatuses. (3) Cross-section where middle and superior meatuses are of small cross-sectional area; (4) larger cross-sectional area, highly pronounced superior meatus, and partially-congested upward-curving supreme meatus. (5) Superimposed images from nasal cavities in [11]. As can be seen, the shape variation is relatively less broad in range