Polyhedron reconstruction using three-view analysis

Flaw reconstruction in NDE using a limited number of X-ray radiographic projections

“…Some researchers have modeled objects in scenes using polygons and three-view stereo images (Hung et al 1989) with good results. One of the problems involved with polygonal models, however, is the correspondence problem which enters through the requirement of matching polygon vertices.…”

“…One approach has been to assume a convex hull model for a flaw distribution and to reconstruct the convex hull using an iterative CT approach at restricted angles (Tarn 1989). Another approach has been to reconstruct polyhedra shapes from three views (Hung et al 1989). This approach uses edge and corner information from three views to reconstruct a polyhedron model of an object.…”

Flaw reconstruction in NDE using a limited number of x-ray radiographic projections

“…One of the first models that comes to mind is a polygon. Some researchers have modeled objects in scenes using polygons and three-view stereo images (Hung et al 1989) with good results. One of the problems involved with polygonal models, however, is the correspondence problem which enters through the requirement of matching polygon vertices.…”