Triangulation with simultaneous recording of reference and object fringes

Jacques Lewandowski; Bruno Menard; Daniel G. Hennequin

doi:10.1117/12.169367

15 March 1994 Triangulation with simultaneous recording of reference and object fringes

Jacques Lewandowski, Bruno Menard, Daniel G. Hennequin

Proceedings Volume 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII; (1994) https://doi.org/10.1117/12.169367
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

The system proposed uses triangulation for 3D reconstruction of object surfaces. The system does not need preliminary calibration of reference fringes since it records simultaneously, on a single image, both reference and object deformed fringes. Reference lines are obtained by a linear interpolation between two reference points observed above and below the object. To produce an illumination with large depth of focus, we propose the use of Fresnel diffraction from an edge. The line separating dark and bright areas of the fringe pattern is used for light sectioning of the object, and the height profile is obtained through triangulation. Experimental 3D measurements are shown for various objects having large depth variations and are obtained with a height resolution of 1 mm at a distance of 500 mm, within a field of view of 25 degree(s).

Citation Download Citation

Jacques Lewandowski, Bruno Menard, and Daniel G. Hennequin "Triangulation with simultaneous recording of reference and object fringes", Proc. SPIE 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII, (15 March 1994); https://doi.org/10.1117/12.169367

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