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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 17 — Aug. 17, 2009
  • pp: 14918–14933

Scene-Based Nonuniformity Correction with Reduced Ghosting Using a Gated LMS Algorithm

Russell C. Hardie, Frank Baxley, Brandon Brys, and Patrick Hytla  »View Author Affiliations

Optics Express, Vol. 17, Issue 17, pp. 14918-14933 (2009)

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In this paper, we present a scene-based nouniformity correction (NUC) method using a modified adaptive least mean square (LMS) algorithm with a novel gating operation on the updates. The gating is designed to significantly reduce ghosting artifacts produced by many scene-based NUC algorithms by halting updates when temporal variation is lacking. We define the algorithm and present a number of experimental results to demonstrate the efficacy of the proposed method in comparison to several previously published methods including other LMS and constant statistics based methods. The experimental results include simulated imagery and a real infrared image sequence. We show that the proposed method significantly reduces ghosting artifacts, but has a slightly longer convergence time.

© 2009 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing

ToC Category:
Image Processing

Original Manuscript: May 8, 2009
Revised Manuscript: July 22, 2009
Manuscript Accepted: July 30, 2009
Published: August 7, 2009

Russell C. Hardie, Frank Baxley, Brandon Brys, and Patrick Hytla, "Scene-based nonuniformity correction with reduced ghosting using a gated LMS algorithm," Opt. Express 17, 14918-14933 (2009)

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