Imaging Components, Systems, and Processing

Scene-based correction of fixed pattern noise in hyperspectral image data using temporal reordering

[+] Author Affiliations
Bradley M. Ratliff, Jason R. Kaufman

Exelis Space Computer Corporation, 4027 Colonel Glenn Highway, Suite 440, Beavercreek, Ohio 45322, United States

Opt. Eng. 54(9), 093102 (Sep 03, 2015). doi:10.1117/1.OE.54.9.093102
History: Received April 10, 2015; Accepted July 6, 2015
Text Size: A A A

Abstract.  Hyperspectral image data suffer from pixel-to-pixel response nonuniformity that degrades the imagery in the form of columnated striping noise. This nonuniformity, or fixed pattern noise (FPN), is typically compensated for through flat-field calibration procedures. FPN is a particularly challenging problem because the detector responsivities drift relative to one another in time, requiring that the sensor be periodically recalibrated. Both the rate and severity of the drift depend on a host of factors that result in varying levels of residual calibration error being present within the data at all times. Scene-based nonuniformity correction (SBNUC) algorithms estimate and remove FPN by exploiting content within the scene data and are often necessary to acceptably remove sensor artifacts for subpixel target detection applications. We present results from two SBNUC techniques that reduce residual FPN and improve target signal-to-clutter ratio. We make the observation that temporally reordering the data in conjunction with the use of spatial ratios or differentials results in algorithms that require a low number of temporal data samples to reliably correct for FPN with minimal introduction of image artifacts. Additionally, application of the algorithms within the principal components domain can further improve their correction ability.

© 2015 Society of Photo-Optical Instrumentation Engineers

Topics

Algorithms ; Sensors

Citation

Bradley M. Ratliff and Jason R. Kaufman
"Scene-based correction of fixed pattern noise in hyperspectral image data using temporal reordering", Opt. Eng. 54(9), 093102 (Sep 03, 2015). ; http://dx.doi.org/10.1117/1.OE.54.9.093102


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.