Three-dimensional modeling by combining artificial with real data.
Issues arising in the graphics simulation of bone grafting and in the use of commercial libraries to create custom-designed models revolve on the ability to combine data defined in Volume Representation--as that generated by Computed Tomography scans--and user-defined data introduced in Boundary Representation--as vertices of polygons, for instance. To address these issues the authors propose a hybrid filling technique, which also processes conflicting adjacency information created by subsampling or digitization errors. A graphics experiment has been designed to illustrate the problems arising in the presence of objects defined partially in Volume and partially in Boundary Representation, and a method to handle them.
Gargantini
I
I
Department of Computer Science, University of Western Ontario, London, Canada.
Atkinson
H H
HH
Schrack
G F
GF
D000465:Algorithms; D016025:Bone Transplantation; D003196:Computer Graphics; D003198:Computer Simulation; D003627:Data Interpretation, Statistical; D008838:Microcomputers; D008954:Models, Biological; D012984:Software; D014057:Tomography, X-Ray Computed