Projector calibration method based on stereo vision system

Projector calibration method based on stereo vision system Digital projectors have been widely used in many accuracy-sensitive fields and the projector should be calibrated precisely. Different from the existing methods using a single camera and a high-accuracy diffuse planar target, the projector calibration method is proposed based on a stereo vision system and a white board. A calibration pattern with several virtual mark points is projected onto the white board at different poses and captured by the stereo vision system. A two-step optimization algorithm is proposed to calculate the intrinsic parameters with roughly coplanar points. The white board has no mark points on it and there is no need to guarantee its flatness, so it avoids using the expensive and fragile diffuse target. Finally, the experimental results have demonstrated the improvement in accuracy of the proposed method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Optical Review Springer Journals

Projector calibration method based on stereo vision system

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Publisher
Springer Journals
Copyright
Copyright © 2017 by The Optical Society of Japan
Subject
Physics; Optics, Lasers, Photonics, Optical Devices; Atomic, Molecular, Optical and Plasma Physics; Quantum Optics; Microwaves, RF and Optical Engineering
ISSN
1340-6000
eISSN
1349-9432
D.O.I.
10.1007/s10043-017-0370-7
Publisher site
See Article on Publisher Site

Abstract

Digital projectors have been widely used in many accuracy-sensitive fields and the projector should be calibrated precisely. Different from the existing methods using a single camera and a high-accuracy diffuse planar target, the projector calibration method is proposed based on a stereo vision system and a white board. A calibration pattern with several virtual mark points is projected onto the white board at different poses and captured by the stereo vision system. A two-step optimization algorithm is proposed to calculate the intrinsic parameters with roughly coplanar points. The white board has no mark points on it and there is no need to guarantee its flatness, so it avoids using the expensive and fragile diffuse target. Finally, the experimental results have demonstrated the improvement in accuracy of the proposed method.

Journal

Optical ReviewSpringer Journals

Published: Oct 5, 2017

References

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