Instrumentation, Techniques, and Measurement

Calibration of zoom lens with virtual optical pattern

[+] Author Affiliations
Aymen Arfaoui, Simon Thibault, Pierre Desaulniers

Université Laval, Center for Optics, Photonics and Lasers, 2375, Avenue de la terrasse, Québec G1V OA6, Canada

Opt. Eng. 54(5), 054107 (May 21, 2015). doi:10.1117/1.OE.54.5.054107
History: Received September 13, 2014; Accepted April 22, 2015
Text Size: A A A

Abstract.  The accuracy of calibration patterns, their fabrication, and their setup are some of the important challenges in a zoom-lens camera calibration process. We address these problems by using a cross-diffractive optical element, which generates a virtual, dense, and robust calibration grid. We show that a 33×33 calibration grid provides enough control points to fill the entire field of view for 10 to 20× zoom lenses. We show that the calibration of a zoom camera at infinity can be done using this method. A polynomial function has been used to model the variation of the intrinsic calibration parameters over the zoom range. The obtained calibration model has also been validated using a well-known target pattern.

Figures in this Article
© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Aymen Arfaoui ; Simon Thibault and Pierre Desaulniers
"Calibration of zoom lens with virtual optical pattern", Opt. Eng. 54(5), 054107 (May 21, 2015). ; http://dx.doi.org/10.1117/1.OE.54.5.054107


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.