A new calibration scheme for the three-dimensional depth-scanning fringe projection measurement method

Jean-Marc Nivet; Thomas Schuster; Klaus Korner; Ulrich Droste; Hans J. Tiziani; Wolfgang Osten

doi:10.1117/12.544251

10 September 2004 A new calibration scheme for the three-dimensional depth-scanning fringe projection measurement method

Jean-Marc Nivet, Thomas Schuster, Klaus Korner, Ulrich Droste, Hans J. Tiziani, Wolfgang Osten

Author Affiliations +

Proceedings Volume 5457, Optical Metrology in Production Engineering; (2004) https://doi.org/10.1117/12.544251
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

We present a measurement setup for the acquisition of topographic and 3-D point cloud data using the depth-scanning fringe projection technique (DSFP). We describe the signal generation, its processing using techniques known from short coherence interferometry and discuss a direct 3-D calibration method. Our measurement system delivers an absolute phase map of the scene under measurement. Calibration procedures for macroscopic measurement methods like fringe projection and / or photogrammetry consider the principal distance (that is to say the distance between the center of projection and the image plane) as a constant. This is feasible as long as no focusing and zooming are performed during measurement. Consequently the depth of the measurement volume is limited by the depth of sharpness of the imaging system. By focusing through the whole depth of the measurement volume, our system overcomes this problem, and offers a virtually unlimited measurement depth. However, we have to take the issue of focusing into consideration in order to calibrate our system. The well-known direct calibration method has been adapted to our DSFP setup in order to deal with the problem of geometrical aberrations and to provide a 3-D point cloud. It has been completed to a set of three polynomial transformations, which allow to include the depth-scanning principle in the calibration of the system.

Citation Download Citation

Jean-Marc Nivet, Thomas Schuster, Klaus Korner, Ulrich Droste, Hans J. Tiziani, and Wolfgang Osten "A new calibration scheme for the three-dimensional depth-scanning fringe projection measurement method", Proc. SPIE 5457, Optical Metrology in Production Engineering, (10 September 2004); https://doi.org/10.1117/12.544251

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