A system for digital reconstruction of gypsum dental casts

Author

Goshtasby, A. Ardeshir ; Nambala, Surya ; DeRijk, Waldemar G. ; Campbell, Steven D.

Author_Institution

Dept. of Comput. Sci. & Eng., Wright State Univ., Dayton, OH, USA

Volume

16

Issue

5

fYear

1997

Firstpage

664

Lastpage

674

Abstract

A range scanner is developed that can scan a gypsum dental cast and reconstruct the cast digitally for display and storage purposes. The scanner is based on subtractive light and computes the range values using optical triangulation. A fiducial marker is introduced that, when attached to a dental cast at the time of image acquisition, makes it possible to integrate multiview range images of the cast without image registration. A method for calibrating the scanner is described and experimental results showing the accuracy of the scanner are presented.

Keywords

biomedical imaging; calibration; casting; data acquisition; image reconstruction; image resolution; image scanners; medical image processing; optical scanners; accuracy; calibration; digital reconstruction; display purposes; fiber optics; fiducial marker; gypsum dental casts; image acquisition; multiview range images; optical triangulation; range scanner; range values; storage purposes; subtractive light; white light; Computer science; Coordinate measuring machines; Dentistry; Image reconstruction; Image registration; Instruments; Mechanical variables measurement; Microscopy; Teeth; Time measurement; Algorithms; Artifacts; Automatic Data Processing; Calcium Sulfate; Calibration; Computer-Aided Design; Data Display; Dental Arch; Dental Materials; Dental Models; Fiber Optics; Humans; Image Processing, Computer-Assisted; Information Storage and Retrieval; Light; Mandible; Photography; Tooth;

fLanguage

English

Journal_Title

Medical Imaging, IEEE Transactions on

Publisher

ieee

ISSN

0278-0062

Type

jour

DOI

10.1109/42.640757

Filename

640757