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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 10 — Nov. 8, 2013

Flexible camera calibration using not-measured imperfect target

Lei Huang, Qican Zhang, and Anand Asundi  »View Author Affiliations

Applied Optics, Vol. 52, Issue 25, pp. 6278-6286 (2013)

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A constrained optimization process is proposed for camera calibration with an imperfect and not-measured calibration target. The proposed method uses the geometry of the calibration target in an optimization process with constraints based on the pattern design statistically. As a result, the camera can be calibrated in the absolute scale without taking any measurement of the imperfect calibration target. It is verified through simulation and experiment that the reprojection errors by using the proposed method are obviously smaller than those of the traditional calibration approach by trusting an imperfect target. The slightly higher measurement precision is also exemplified through an experimental calibration of a stereo vision system.

© 2013 Optical Society of America

OCIS Codes
(040.1490) Detectors : Cameras
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(150.0150) Machine vision : Machine vision
(150.1488) Machine vision : Calibration

ToC Category:
Machine Vision

Original Manuscript: June 3, 2013
Revised Manuscript: August 1, 2013
Manuscript Accepted: August 1, 2013
Published: August 26, 2013

Virtual Issues
Vol. 8, Iss. 10 Virtual Journal for Biomedical Optics

Lei Huang, Qican Zhang, and Anand Asundi, "Flexible camera calibration using not-measured imperfect target," Appl. Opt. 52, 6278-6286 (2013)

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