OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 6 — Feb. 20, 2007
  • pp: 888–899

Segmentation of diesel spray images with log-likelihood ratio test algorithm for non-Gaussian distributions

José V. Pastor, Jean Arrègle, José M. García, and L. Daniel Zapata  »View Author Affiliations


Applied Optics, Vol. 46, Issue 6, pp. 888-899 (2007)
http://dx.doi.org/10.1364/AO.46.000888


View Full Text Article

Enhanced HTML    Acrobat PDF (1819 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A methodology forprocessing images of diesel sprays under different experimental situations is presented. The new approach has been developed for cases where the background does not follow a Gaussian distribution but a positive bias appears. In such cases, the lognormal and the gamma probability density functions have been considered for the background digital level distributions. Two different algorithms have been compared with the standard log- likelihood ratio test (LRT): a threshold defined from the cumulative probability density function of the background shows a sensitive improvement, but the best results are obtained with modified versions of the LRT algorithm adapted to non-Gaussian cases.

© 2007 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.2960) Image processing : Image analysis
(100.5010) Image processing : Pattern recognition

ToC Category:
Image Processing

History
Original Manuscript: May 30, 2006
Revised Manuscript: October 20, 2006
Manuscript Accepted: October 23, 2006
Published: February 2, 2007

Citation
José V. Pastor, Jean Arrègle, José M. García, and L. Daniel Zapata, "Segmentation of diesel spray images with log-likelihood ratio test algorithm for non-Gaussian distributions," Appl. Opt. 46, 888-899 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-6-888

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