OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 31 — Nov. 1, 2012
  • pp: 7701–7713

Background first- and second-order modeling for point target detection

Laure Genin, Frédéric Champagnat, and Guy Le Besnerais  »View Author Affiliations


Applied Optics, Vol. 51, Issue 31, pp. 7701-7713 (2012)
http://dx.doi.org/10.1364/AO.51.007701


View Full Text Article

Enhanced HTML    Acrobat PDF (1891 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

This paper deals with point target detection in nonstationary backgrounds such as cloud scenes in aerial or satellite imaging. We propose an original spatial detection method based on first- and second-order modeling (i.e., mean and covariance) of local background statistics. We first show that state-of-the-art nonlocal denoising methods can be adapted with minimal effort to yield edge-preserving background mean estimates. These mean estimates lead to very efficient background suppression (BS) detection. However, we propose that BS be followed by a matched filter based on an estimate of the local spatial covariance matrix. The identification of these matrices derives from a robust classification of pixels in classes with homogeneous second-order statistics based on a Gaussian mixture model. The efficiency of the proposed approaches is demonstrated by evaluation on two cloudy sky background databases.

© 2012 Optical Society of America

OCIS Codes
(040.1880) Detectors : Detection
(100.0100) Image processing : Image processing
(110.3080) Imaging systems : Infrared imaging

ToC Category:
Image Processing

History
Original Manuscript: May 22, 2012
Revised Manuscript: October 10, 2012
Manuscript Accepted: October 12, 2012
Published: October 31, 2012

Citation
Laure Genin, Frédéric Champagnat, and Guy Le Besnerais, "Background first- and second-order modeling for point target detection," Appl. Opt. 51, 7701-7713 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-31-7701

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited