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


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. J. V. Pastor, E. Encabo, and S. Ruiz, "New modelling approach for fast online in sprays," SAE technical paper 2000-01-0287 (Society of Automotive Engineers, 2000).
  2. L. Allocca, F. E. Corcione, and M. Costa, "Numerical and experimental analysis of multiple injection diesel sprays," SAE technical paper 2004-01-1879 (Society of Automotive Engineers, 2004).
  3. S. Sazhin, C. Crua, D. Kennaird, and M. Heikal, "The initial stage of fuel spray penetration," Fuel 82, 875-885 (2003). [CrossRef]
  4. R. Aneja and J. Abraham, "How far does the liquid penetrate in a diesel engine: computed results vs measurement," Combust. Sci. Technol. 138, 233-255 (1998). [CrossRef]
  5. J. E. Dec, "A conceptual model of DI diesel combustion based on laser-sheet imaging," SAE technical paper 970873 (Society of Automotive Engineers, 1997).
  6. V. Bermúdez, J. M. García, J. E. Juliá, and S. Martínez, "Engine with optically accessible cylinder head: a research tool injection and combustion processes," SAE technical paper 2003-01-1110 (Society of Automotive Engineers, 2003).
  7. J. E. Dec and C. Espey, "Chemiluminescence imaging of autoingnition in a DI diesel engine," SAE technical paper 982685 (Society of Automotive Engineers, 1998).
  8. B. Higgins and D. Siebers, "Measurement of the flame lift-off location on DI diesel sprays using OH chemiluminescence," SAE technical paper 2001-01-0918 (Society of Automotive Engineers, 2001).
  9. A. Larsson, "Optical studies in a DI diesel engine," SAE technical paper 1999-01-3650 (Society of Automotive Engineers, 1999).
  10. L. M. Pickett and D. L. Siebers, "Soot in diesel fuel lets: effects of ambient temperature, ambient density, and injection pressure," Combust. Flame 138, 114-135 (2004). [CrossRef]
  11. H. Zhao and N. Ladomatos, Engine Combustion Instrumentation and Diagnostics (Society of Automotive Engineers, 2001). [CrossRef]
  12. J. V. Pastor, J. J. López, J. E. Juliá, and J. V. Benajes, "Planar laser-induced fluorescence fuel concentration measurement in isothermal diesel sprays," Opt. Express 10, 309-323 (2002). [PubMed]
  13. M. A. Beeck and W. Hentschel, "Laser metrology--a diagnostic tool in automotive development process," Opt. Lasers Eng. 34, 1001-120 (2000). [CrossRef]
  14. J. V. Pastor, R. Payri, J. J. López, and J. E. Juliá, "Effect of injector nozzle geometry of diesel engines on the macroscopic spray characteristics by means of optical techniques," in Proceedings of Fuel injection Systems Conference (IMechE, 2003), C610/014/2003.
  15. A. Cronhjort and F. Wåhlin, "Segmentation algorithm for diesel spray image analysis," Appl. Opt. 43, 5971-5980 (2004). [CrossRef] [PubMed]
  16. J. Shao, Y. Yan, G. Greeves, and S. Smith, "Quantitative characterization of diesel sprays using digital imaging techniques," Meas. Sci. Technol. 14, 1110-1116 (2003). [CrossRef]
  17. J. Seneschal, B. Maurin, J. C. Champoussin, and C. Ducottet, "A fully automatic system for the morphology characterization of high pressure diesel sprays," SAE technical paper 2004-01-0025 (Society of Automotive Engineers, 2004).
  18. B. Maunoury, T. Duverger, K. Mokaddem, and F. Lacacs, "Phenomenological analysis of injection, auto-ignition, and combustion in small DI diesel engines," SAE technical paper 2002-01-1161 (Society of Automotive Engineers, 2002).
  19. B. S. Higgins, C. J. Muller, and D. L. Siebers, "Measurements of fuel effects on liquid-phase penetration in DI sprays," SAE technical paper 1999-01-0519 (Society of Automotive Engineers, 1999).
  20. D. L. Siebers, "Liquid-phase fuel penetration in diesel engines," SAE technical paper 980809 (Society of Automotive Engineers, 1998).
  21. J. V. Pastor, J. Arrègle, and A. Palomares, "Diesel spray image segmentation with a likelihood ratio test," Appl. Opt. 40, 2876-2885 (2001). [CrossRef]
  22. F. Payri, J. V. Pastor, A. Palomares, and J. E. Juliá, "Optimal feature extraction for segmentation of diesel spray images," Appl. Opt. 43, 2102-2111 (2004). [CrossRef] [PubMed]
  23. J. C. Devaux, P. Gouton, and F. Truchetet, "Karhunen-Loève transform applied to region-based segmentation of colour aerial images," Opt. Eng. 40, 1302-1308 (2001). [CrossRef]
  24. F. Payri, V. Bermúdez, R. Payri, and J. Salvador, "The influence of cavitation on the internal flow and the spray characteristics in diesel injection nozzles," Fuel 83, 419-431 (2004). [CrossRef]
  25. J. M. Desantes, R. Payri, F. J. Salvador, and V. Soare, "Study of the influence of geometrical and injection parameters on diesel sprays characteristics in isothermal conditions," SAE technical paper 2005-01-0913 (Society of Automotive Engineers, 2005).
  26. R. Lukac, K. N. Plataniotis, and D. Hatzinakos, "Color image zooming on the Bayer pattern," IEEE Trans. Circuits Syst. Video Technol. 15, 1475-1492 (2005). [CrossRef]
  27. R. O. Duda, P. E. Hart, and D. G. Stork, Pattern Classification, 2nd ed. (Wiley, 2001).
  28. K. Fukunaga, Introduction to Statistical Pattern Recognition, 2nd ed. (Academic, 1990).
  29. R. C. Gonzalez and R. E. Woods, Digital Image Processing, 2nd ed. (Prentice-Hall, 2002).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited