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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 32 — Nov. 11, 2002
  • pp: 6745–6750

Wavelet transform analysis of dynamic speckle patterns texture

Margarita Fernández Limia, Adriana Mavilio Núñez, Héctor Rabal, and Marcelo Trivi  »View Author Affiliations


Applied Optics, Vol. 41, Issue 32, pp. 6745-6750 (2002)
http://dx.doi.org/10.1364/AO.41.006745


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Abstract

We propose the use of the wavelet transform to characterize the time evolution of dynamic speckle patterns. We describe it by using as an example a method used for the assessment of the drying of paint. Optimal texture features are determined and the time evolution is described in terms of the Mahalanobis distance to the final (dry) state. From the behavior of this distance function, two parameters are defined that characterize the evolution. Because detailed knowledge of the involved dynamics is not required, the methodology could be implemented for other complex or poorly understood dynamic phenomena.

© 2002 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(100.7410) Image processing : Wavelets

History
Original Manuscript: March 21, 2002
Revised Manuscript: July 23, 2002
Published: November 10, 2002

Citation
Margarita Fernández Limia, Adriana Mavilio Núñez, Héctor Rabal, and Marcelo Trivi, "Wavelet transform analysis of dynamic speckle patterns texture," Appl. Opt. 41, 6745-6750 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-32-6745

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