NDLI: Feature detection on 3-D images of dental imprints

Content Provider	IEEE Xplore Digital Library
Author	Mokhtari, M. Laurendeau, D.
Copyright Year	1994
Description	Author affiliation: Dept. de Genie Electrique, Laval Univ., Que., Canada (Mokhtari, M.; Laurendeau, D.)
Abstract	A computer vision approach for the extraction of feature points on 3D images of dental imprints is presented. The position of feature points are needed for the measurement of a set of parameters for automatic diagnosis of malocclusion problems in orthodontics. The system for the acquisition of the 3D profile of the imprint, the procedure for the detection of the interstices between teeth, and the approach for the identification of the type of tooth are described. The algorithm for the reconstruction of the surface of each type of tooth is presented. A new approach for the detection of feature points, called the watershed algorithm, is described in detail. The algorithm is a two-stage procedure which tracks the position of local minima at four different scales and produces a final map of the position of the minima. Experimental results of the application of the watershed algorithm on actual 3D images of dental imprints are presented for molars, premolars and canines. The segmentation approach for the analysis of the shape of incisors is also described in detail.<>
Starting Page	287
Ending Page	296
File Size	1137387
Page Count	10
File Format	PDF
ISBN	0818658029
DOI	10.1109/BIA.1994.315842
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-06-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer vision Dentistry Teeth Semiconductor device modeling Feature extraction Shape measurement Image analysis Software libraries Position measurement Muscles
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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