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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 22, Iss. 2 — Feb. 1, 2005
  • pp: 239–249

Generalized algebraic scene-based nonuniformity correction algorithm

Bradley M. Ratliff, Majeed M. Hayat, and J. Scott Tyo  »View Author Affiliations


JOSA A, Vol. 22, Issue 2, pp. 239-249 (2005)
http://dx.doi.org/10.1364/JOSAA.22.000239


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Abstract

A generalization of a recently developed algebraic scene-based nonuniformity correction algorithm for focal plane array (FPA) sensors is presented. The new technique uses pairs of image frames exhibiting arbitrary one- or two-dimensional translational motion to compute compensator quantities that are then used to remove nonuniformity in the bias of the FPA response. Unlike its predecessor, the generalization does not require the use of either a blackbody calibration target or a shutter. The algorithm has a low computational overhead, lending itself to real-time hardware implementation. The high-quality correction ability of this technique is demonstrated through application to real IR data from both cooled and uncooled infrared FPAs. A theoretical and experimental error analysis is performed to study the accuracy of the bias compensator estimates in the presence of two main sources of error.

© 2005 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.2550) Image processing : Focal-plane-array image processors
(100.3020) Image processing : Image reconstruction-restoration
(110.3080) Imaging systems : Infrared imaging
(110.4280) Imaging systems : Noise in imaging systems

History
Original Manuscript: April 21, 2004
Revised Manuscript: August 11, 2004
Manuscript Accepted: August 11, 2004
Published: February 1, 2005

Citation
Bradley M. Ratliff, Majeed M. Hayat, and J. Scott Tyo, "Generalized algebraic scene-based nonuniformity correction algorithm," J. Opt. Soc. Am. A 22, 239-249 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-2-239

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