Digital Eversion of a Hollow Structure: An Application in Virtual Colonography
Figure 2
Cross-sections
generated for a tubular structure with respect to its centerline. (a) Possible
intersections of planar cross-sections perpendicular to the centerline, which
may lead to redundant or little sampling of the surface, and (b) curved
cross-sections based on an electrical field, in which positive charges are
distributed along the centerline.