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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 17 — Jun. 10, 2001
  • pp: 2876–2885

Diesel spray image segmentation with a likelihood ratio test

José V. Pastor, Jean Arrègle, and Alberto Palomares  »View Author Affiliations


Applied Optics, Vol. 40, Issue 17, pp. 2876-2885 (2001)
http://dx.doi.org/10.1364/AO.40.002876


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Abstract

To characterize the macroscopic behavior of Diesel sprays and to validate and extend for current high-pressure injection systems the correlations existent in the literature, it is necessary to determine the spray geometry accurately, at least in terms of spray tip penetration and cone angle. These parameters are measured by analyzing Diesel spray images and are highly sensitive to the correct edge determination. An algorithm for segmentation of color images based on a likelihood ratio test is presented. This algorithm is compared with others available in the literature and has been validated, even for adverse experimental conditions. The experimental facilities, optical layouts, and image-processing algorithms are described.

© 2001 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.3020) Image processing : Image reconstruction-restoration
(100.5010) Image processing : Pattern recognition

History
Original Manuscript: December 1, 1999
Revised Manuscript: December 13, 2000
Published: June 10, 2001

Citation
José V. Pastor, Jean Arrègle, and Alberto Palomares, "Diesel spray image segmentation with a likelihood ratio test," Appl. Opt. 40, 2876-2885 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-17-2876


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