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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 11 — Apr. 10, 2009
  • pp: 2115–2126

Design and characterization of thin multiple aperture infrared cameras

A. Portnoy, N. Pitsianis, X. Sun, D. Brady, R. Gibbons, A. Silver, R. Te Kolste, C. Chen, T. Dillon, and D. Prather  »View Author Affiliations


Applied Optics, Vol. 48, Issue 11, pp. 2115-2126 (2009)
http://dx.doi.org/10.1364/AO.48.002115


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Abstract

We describe a multiple-aperture long-wave infrared camera built on an uncooled microbolometer array with the objective of decreasing camera thickness. The 5 mm thick optical system is an f / 1.2 design with a 6.15 mm effective focal length. An integrated image is formed from the subapertures using correlation-based registration and a least gradient reconstruction algorithm. We measure a 131 mK NETD. The system’s spatial frequency is analyzed with 4   bar targets. With proper calibration, our multichannel interpolation results recover contrast for targets at frequencies beyond the aliasing limit of the individual subimages.

© 2009 Optical Society of America

OCIS Codes
(100.6640) Image processing : Superresolution
(110.3080) Imaging systems : Infrared imaging
(110.1758) Imaging systems : Computational imaging

ToC Category:
Imaging Systems

History
Original Manuscript: December 18, 2008
Revised Manuscript: March 2, 2009
Manuscript Accepted: March 10, 2009
Published: April 6, 2009

Citation
A. Portnoy, N. Pitsianis, X. Sun, D. Brady, R. Gibbons, A. Silver, R. Te Kolste, C. Chen, T. Dillon, and D. Prather, "Design and characterization of thin multiple aperture infrared cameras," Appl. Opt. 48, 2115-2126 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-11-2115


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