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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 13 — May. 1, 1997
  • pp: 2783–2787

Contrast enhancement of electronic speckle pattern interferometry addition fringes

Noe Alcalá Ochoa, Fernando Mendoza Santoyo, Andrew J. Moore, and Carlos Pérez López  »View Author Affiliations


Applied Optics, Vol. 36, Issue 13, pp. 2783-2787 (1997)
http://dx.doi.org/10.1364/AO.36.002783


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Abstract

The electronic speckle pattern interferometer in the double-pulse addition mode can be used to measure physical parameters in unstable environmental conditions. Owing to additive optical noise, however, the fringe patterns obtained have poor contrast. Some methods that use subtraction of addition double-pulsed fringe patterns improve fringe visibility but impose a limitation in measurement time ranges. To increase this range, to be limited by only the pulse separation, the contrast enhancement of double-pulsed addition-fringe patterns with a spatial filter based on local-standard-deviation measurements is investigated. Computer simulations and experimental results are presented.

© 1997 Optical Society of America

History
Original Manuscript: June 7, 1996
Published: May 1, 1997

Citation
Noe Alcalá Ochoa, Fernando Mendoza Santoyo, Andrew J. Moore, and Carlos Pérez López, "Contrast enhancement of electronic speckle pattern interferometry addition fringes," Appl. Opt. 36, 2783-2787 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-13-2783


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References

  1. R. Jones, C. Wykes, Holographic and Speckle Interferometry, 2nd ed. (Cambridge U. Press, Cambridge, UK, 1989). [CrossRef]
  2. F. Mendoza Santoyo, D. Kerr, J. R. Tyrer, T. C. West, “A novel approach to whole field vibration analysis using a pulsed laser system,” in Holographic Optics II: Principles and Applications, G. M. Morris, eds., Proc. SPIE1136, pp. 335–345 (1989).
  3. D. Kerr, F. Mendoza Santoyo, J. R. Tyrer, “Extraction of phase data from electronic speckle pattern interferometric fringes using a single-phase-step method: a novel approach,” J. Opt. Soc. Am. A 7, 820–826 (1990). [CrossRef]
  4. M. C. Shellabear, F. Mendoza Santoyo, J. R. Tyrer, “Processing of addition and subtraction fringes from pulsed ESPI for the study of vibrations,” in Proceedings of the Society for Experimental Mechanics Conference on Hologram Interferometry and Speckle Metrology (Society for Experimental Mechanics, Baltimore, Md., 1990), pp. 238–244.
  5. A. J. Moore, C. Pérez López, “Fringe visibility enhancement and phase calculation in double pulsed addition ESPI,” J. Mod. Opt. 43, 1829–1844 (1996). [CrossRef]
  6. A. J. Moore, C. Pérez Lépez, “Low frequency harmonic vibration analysis with double-pulsed addition ESPI,” Opt. Eng. 35, 2641–2650 (1996). [CrossRef]
  7. R. Gonzalez, P. C. Wintz, Digital Image Processing (Addison-Wesley, Reading, Mass., 1987), pp. 398–402.

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