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Article
Scene-Based Nonuniformity Correction with Reduced Ghosting Using a Gated LMS Algorithm
Optics Express
  • Russell C. Hardie, University of Dayton
  • Frank Orion Baxley, General Dynamics Advanced Information Systems
  • Brandon J. Brys, University of Dayton
  • Patrick C. Hytla, University of Dayton
Document Type
Article
Publication Date
8-1-2009
Abstract

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.

Inclusive pages
14918-14933
ISBN/ISSN
1094-4087
Document Version
Published Version
Comments

Optics Express is an open-access journal of OSA: The Optical Society. This article is licensed with the Creative Commons Attribution License (CC-BY) and must be attributed properly. Permission documentation is on file.

Publisher
OSA: The Optical Society
Peer Reviewed
Yes
Citation Information
Russell C. Hardie, Frank Orion Baxley, Brandon J. Brys and Patrick C. Hytla. "Scene-Based Nonuniformity Correction with Reduced Ghosting Using a Gated LMS Algorithm" Optics Express Vol. 17 Iss. 17 (2009)
Available at: http://works.bepress.com/russell_hardie/30/