Automatic camera calibration and sensor registration of a multi-sensor fringe measurement system using hexapod positioning

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autorinnen und Autoren: Metzner S, Hausotte T
Herausgeber: SPIE
Jahr der Veröffentlichung: 2019
Band: 11056
Tagungsband: Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 1105616
Seitenbereich: 1 - 9
Sprache: Englisch


Abstract

For the requirements of newly developed production processes like sheet
bulk metal forming a previously developed measuring method exists for
dimensional measurement of these manufactured parts. The presented
multi-sensor approach allows the combination of several fringe
projection sensors with different measurement resolutions and ranges to
meet the requirements of the new production technology. The measurement
setup includes a high precision hexapod to position the investigated
workpiece inside the measuring volume. The measurement devices utilized
are high precision fringe projection systems with 17 µm lateral and 1 µm
vertical resolution. An additional overview sensor captures the whole
measurement range of the hexapod. This paper presents two approaches
that can be used for camera calibration and sensor registration of the
fringe projection systems in a global coordinate system. A speckle
pattern and a random dot pattern are placed on the hexapod to calculate
the intrinsic parameters of the sensor camera and extrinsic parameters
of the fringe sensor in one single step. To obtain metric lengths with
the calibration process, a defined scale is included additionally on the
pattern. The calibration process is executed by an automatic and random
movement of the hexapod in the recording area of the sensors.
Measurements show a direct transferability from the camera to the sensor
coordinate system. This allows the measurement datasets to be directly
merged together without the use of a separate registration routine.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Hausotte, Tino Prof. Dr.-Ing.
Lehrstuhl für Fertigungsmesstechnik
Metzner, Sebastian
Lehrstuhl für Fertigungsmesstechnik


Zitierweisen

APA:
Metzner, S., & Hausotte, T. (2019). Automatic camera calibration and sensor registration of a multi-sensor fringe measurement system using hexapod positioning. In SPIE (Eds.), Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 1105616 (pp. 1 - 9). Munich, DE.

MLA:
Metzner, Sebastian, and Tino Hausotte. "Automatic camera calibration and sensor registration of a multi-sensor fringe measurement system using hexapod positioning." Proceedings of the SPIE Optical Metrology, 2019, Munich Ed. SPIE, 2019. 1 - 9.

BibTeX: 

Zuletzt aktualisiert 2019-28-06 um 13:08