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Optical Engineering

Characterization of dynamic speckles by the difference histogram method
Author(s): Adriana Mavilio Nunez; Margarita Fernandez Limia; Mercedes Tano Lazo; Hector Jorge Rabal; Ricardo A. Arizaga; Marcelo Trivi
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Paper Abstract

Dynamic speckle techniques are useful tools for the study of temporal evolution. We use the difference histogram (DH) method for texture speckle image characterization. To test this proposal, two experiments were developed, concerning activity speckle images corresponding to live and dead seeds, and to drying of synthetic paints. The time history of the speckle pattern obtained from different stages of the samples was analyzed. The results are compared with those obtained from previous investigations performed with other methods. The comparison reveals that the proposed DH method is appropriate for this task.

Paper Details

Date Published: 1 May 2007
PDF: 5 pages
Opt. Eng. 46(5) 057005 doi: 10.1117/1.2736306
Published in: Optical Engineering Volume 46, Issue 5
Show Author Affiliations
Adriana Mavilio Nunez, Instituto Superior Politécnico José Antonio Echeverría (Cuba)
Margarita Fernandez Limia, Instituto Superior Politécnico José Antonio Echeverría (Cuba)
Mercedes Tano Lazo, Instituto Superior Politécnico José Antonio Echeverría (Cuba)
Hector Jorge Rabal, Univ. Nacional de la Plata (Argentina)
Ricardo A. Arizaga, Univ. Nacional de la Plata (Argentina)
Marcelo Trivi, Ctr. de Investigaciones Opticas (Argentina)

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