1 May 2007 Characterization of dynamic speckles by the difference histogram method
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Optical Engineering, 46(5), 057005 (2007). doi:10.1117/1.2736306
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.
Adriana Mavilio Nunez, Margarita Fernandez Limia, Mercedes Tano Lazo, Hector Jorge Rabal, Ricardo A. Arizaga, Marcelo Trivi, "Characterization of dynamic speckles by the difference histogram method," Optical Engineering 46(5), 057005 (1 May 2007). http://dx.doi.org/10.1117/1.2736306
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KEYWORDS
Speckle

Speckle pattern

Image analysis

Humidity

Optical engineering

Statistical analysis

Wavelet transforms

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