Translator Disclaimer
7 July 1986 Real-Time, Noninvasive Recording And Three-Dimensional Display Of The Functional Movements Of An Arbitrary Mandible Point
Author Affiliations +
Proceedings Volume 0602, Biostereometrics '85; (1986) https://doi.org/10.1117/12.956295
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France
Abstract
The monitoring of the motion of an arbitrary mandibular point is essential in dentistry in order to extract from typical motion patterns relevant parameters indicating normal or abnormal masticatory function. After first experiences of nonrestrictive jaw motion quantification with the help of a Selspot I we designed a new real-time optoelectronic system. The recording system includes three cameras. Each camera contains a cylindrical lens and a linear optosensor (CCD). Two extra-oral lightweight target frames (2g) containing each three light emitting diodes are fixed on the patients's teeth. The system fires each LED cyclically and computes their three-dimensional coordinates in a reconstruction unit. From these coordinates another processing unit computes the three-dimensional coordinates of an arbitrary jaw point in a head fixed coordinate system. The computed trajectories are drawn on-line with the help of a dedicated 3D viewing hardware on a CRT where they can be directly rotated and zoomed to follow intricate motion details. The system is easy to handle, low-cost, stand-alone, has an excellent linearity and a resolution better than 0.1 mm.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. Mesqui, F. Kaeser, and P. Fischer "Real-Time, Noninvasive Recording And Three-Dimensional Display Of The Functional Movements Of An Arbitrary Mandible Point", Proc. SPIE 0602, Biostereometrics '85, (7 July 1986); https://doi.org/10.1117/12.956295
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Tunable fiber confocal sensor with LED
Proceedings of SPIE (July 17 2015)
Optoelectronic eye tracking system
Proceedings of SPIE (February 04 1997)
System design and aircraft integration
Proceedings of SPIE (June 07 1996)

Back to Top