A new 3D shape measurement method using digital fringe projection technique

Jiarui Zhang; Yingjie Zhang; Mingrang Yu; Dehu Xiang

doi:10.1117/12.2202809

8 October 2015 A new 3D shape measurement method using digital fringe projection technique

Jiarui Zhang, Yingjie Zhang, Mingrang Yu, Dehu Xiang

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 96772E (2015) https://doi.org/10.1117/12.2202809
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

This paper proposes a novel optical three-dimensional (3D) measurement method using the traditional space-time stereo system. In the proposed method, the projector not only shoots fringe pattern onto the measurement object to achieve precise matching, but also plays a vital role in the 3D information calculation. With the combination of two cameras and a projector, two digital fringe projection (DFP) measurement systems and one traditional space-time stereo measurement system can be obtained. In another word, the measurand will be measured three times simultaneously, which results in three independent point clouds of the same region of the object to be measured. So it is necessary to register these three sets of points for obtaining one final data set. The iterative closest points (ICP) method, which is known as the most popular registration approach, is sensitive to the initial estimation of the transformation between the two sets of points to be matched. Thus, a robust rough registration, which is introduced from Natasha, is useful for ICP to realize accurate registration. After registration, a scattered point set with redundant and errors, which are caused by overlapping, is obtained. Then some local surfaces are constructed for those overlapping regions using the moving least squares (MLS) method, and the points extracted from those surfaces are used to replace the points of the overlapping regions. Finally, a simplified, precise point cloud can be obtained.

Citation Download Citation

Jiarui Zhang, Yingjie Zhang, Mingrang Yu, and Dehu Xiang "A new 3D shape measurement method using digital fringe projection technique", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96772E (8 October 2015); https://doi.org/10.1117/12.2202809

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

3D metrology

Projection systems

Cameras

Imaging systems

Clouds

3D modeling

Calibration

Show All Keywords

Keywords/Phrases

Search In:

Publication Years