Fringe projection based 3D contour measurement method for holes on sheet metal parts

Pan Zhang; Yi Huang; Yu'e Su; Qingpeng Yang; Kai Zhong; Zhongwei Li

doi:10.1117/12.2666806

27 January 2023 Fringe projection based 3D contour measurement method for holes on sheet metal parts

Pan Zhang, Yi Huang, Yu'e Su, Qingpeng Yang, Kai Zhong, Zhongwei Li

Author Affiliations +

Proceedings Volume 12550, International Conference on Optical and Photonic Engineering (icOPEN 2022); 125500M (2023) https://doi.org/10.1117/12.2666806
Event: International Conference on Optical and Photonic Engineering (icOPEN 2022), 2022, ONLINE, China

Abstract

Holes are common and important feature information in sheet metal parts and play a decisive role in product production and assembly. The 3D contour reconstruction method based on passive binocular vision has been widely used in hole measurement due to its high accuracy and robustness. It can obtain dimensional data such as diameter and center of round holes, but there are still problems in measurement accuracy and integrity, and it is difficult to accurately measure special-shaped holes. Aiming at these issues, a fringe projection-based 3D contour measurement method for holes on sheet metal parts is proposed. In this method, two constant movements are performed on the extracted contour curve to the surrounding area, and the 3D contour points can be reconstructed according to the phase matching. Therefore, the real 3D contour is reconstructed inversely according to the corresponding points of the previous two reconstructed contours. With this method, contours only need to be extracted on one image, so it can reduce the effect of inconsistency in contour extraction. In addition, the accuracy and integrity of the 3D contour can be guaranteed by using high-quality phase matching of the sheet metal area. The experimental results show that this method can achieve accurate and complete 3D contour reconstruction for sheet metal holes of various shapes, and the accuracy can reach 0.08mm.

Citation Download Citation

Pan Zhang, Yi Huang, Yu'e Su, Qingpeng Yang, Kai Zhong, and Zhongwei Li "Fringe projection based 3D contour measurement method for holes on sheet metal parts", Proc. SPIE 12550, International Conference on Optical and Photonic Engineering (icOPEN 2022), 125500M (27 January 2023); https://doi.org/10.1117/12.2666806

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

Metals

Cameras

Image segmentation

Contour extraction

Point clouds

3D modeling

Show All Keywords

Keywords/Phrases

Search In:

Publication Years