A method of multi-view intraoral 3D measurement

Huijie Zhao; Zhen Wang; Hongzhi Jiang; Yang Xu; Peijun Lv; Yunchun Sun

doi:10.1117/12.2083304

19 February 2015 A method of multi-view intraoral 3D measurement

Huijie Zhao, Zhen Wang, Hongzhi Jiang, Yang Xu, Peijun Lv, Yunchun Sun

Proceedings Volume 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014); 94493F (2015) https://doi.org/10.1117/12.2083304
Event: The International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference (icPOE 2014), 2014, Xi'an, China

Abstract

In dental restoration, its important to achieve a high-accuracy digital impression. Most of the existing intraoral measurement systems can only measure the tooth from a single view. Therfore，if we are wilng to acquire the whole data of a tooth, the scans of the tooth from multi-direction ad the data stitching based on the features of the surface are needed, which increases the measurement duration and influence the measurement accuracy. In this paper, we introduce a fringe-projection based on multi-view intraoral measurement system. It can acquire 3D data of the occlusal surface, the buccal surface and the lingual surface of a tooth synchronously, by using a senor with three mirrors, which aim at the three surfaces respectively and thus expand the measuring area. The constant relationship of the three mirrors is calibrated before measurement and can help stitch the data clouds acquired through different mirrors accurately. Therefore the system can obtain the 3D data of a tooth without the need to measure it from different directions for many times. Experiments proved the availability and reliability of this miniaturized measurement system.

Citation Download Citation

Huijie Zhao, Zhen Wang, Hongzhi Jiang, Yang Xu, Peijun Lv, and Yunchun Sun "A method of multi-view intraoral 3D measurement", Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94493F (19 February 2015); https://doi.org/10.1117/12.2083304

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available