29 October 2019 Optimization-based extrinsic calibration of a three-dimensional sensor composed of an array projector and a single camera
Eugene Wong, Stefan Heist, Christian Bräuer-Burchardt, Andreas Stark, Holger Babovsky, Richard Kowarschik
Author Affiliations +
Abstract

We previously presented a technique calibrating a multiaperture array projector (MAAP) for performing high-speed three-dimensional (3-D) surface topology measurements with aperiodic sinusoidal fringe structured illumination. Although a stereo-camera setup used to be required for triangulation, the presented MAAP calibration technique re-enables photogrammetric 3-D measurements to be made using a single CCD or CMOS camera. For such a monocular-view photogrammetric system, intrinsic camera calibration, intrinsic projector calibration, and extrinsic system calibration are vital to obtain high-measurement performance. However, there is currently no such technique that can comprehensively perform the required extrinsic system calibration when using an MAAP and a single-camera setup. A comprehensive optimization-based method is proposed and the resulting measurement performance is evaluated. With the new calibration technique, we are able to achieve a surface standard deviation of ∼50  μm.

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2019/$28.00 © 2019 SPIE
Eugene Wong, Stefan Heist, Christian Bräuer-Burchardt, Andreas Stark, Holger Babovsky, and Richard Kowarschik "Optimization-based extrinsic calibration of a three-dimensional sensor composed of an array projector and a single camera," Optical Engineering 58(10), 104109 (29 October 2019). https://doi.org/10.1117/1.OE.58.10.104109
Received: 28 August 2019; Accepted: 14 October 2019; Published: 29 October 2019
Lens.org Logo
CITATIONS
Cited by 3 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Calibration

Cameras

Projection systems

Optical spheres

3D metrology

Clouds

Imaging systems

RELATED CONTENT


Back to Top