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Reconstruction of teeth from range images

 
: Neugebauer, P.J.

The first Germany-Korea Joint Conference on Advanced Medical Image Processing 1996
Seoul, 1996
Germany-Korea Joint Conference on Advanced Medical Image Processing <1, 1996, Seoul>
English
Conference Paper
Fraunhofer IGD ()
dental imaging; geometry; reconstruction; registration; restoration; sculpturing; tooth

Abstract
Ceramic inlays are often used for a high quality restoration of defect teeth. With new CIM-systems these inlays can be constructed and milled chair-sided within one session. At the moment, the construction is a partially automated process. The dentist has to guide the reconstruction process. Further automation of such CIM-systems is only possible if the typical geometry of teeth is known by the system. In this paper, we present an approach tof the reconstruction of rigid teeth model. Therefore, a tooth model has to be scanned from several directions with a 3D-laser scanner. Several views are necessary because of shadows and occluded areas in the range images. Then, all acquired range views are combined to build a CAD-model of the tooth. The idea is that every part of the surface should be visible in at least one view. The reconstruction process is divided into the steps registration, volume sculturing and generation of an accurate polygonal into the steps registration, volume sculpturi ng and generation of an accurate polygonal representation. The presented technique can be easily applied to other application areas.

: http://publica.fraunhofer.de/documents/PX-31354.html