Artículo
Light intensity independence during dynamic laser speckle analysis
Fecha de publicación:
05/2016
Editorial:
Elsevier Science
Revista:
Optics Communications
ISSN:
0030-4018
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We explore some different normalizations of current dynamic laser speckle activity measures searching for their performance with respect to the illumination inhomogeneity of the samples. Inertia Moment and Average Value of Differences of the co-occurrence matrix are compared using a paint-drying case study on a uniform sample where attenuation in a portion of the illuminated area is introduced using a neutral density filter. In this way, all environmental conditions being equal but non-uniform illumination permits the comparison on a better approximation to objectivity. The results presented show that it is possible to mitigate the effects of the illumination in the activities measured by the dynamic laser speckle.
Palabras clave:
Biospeckle
,
Co-Occurrence Matrix
,
Paint Drying
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Articulos(CIOP)
Articulos de CENTRO DE INVEST.OPTICAS (I)
Articulos de CENTRO DE INVEST.OPTICAS (I)
Citación
Reis, Renan Oliveira; Rabal, Hector Jorge; Braga, Roberto A.; Light intensity independence during dynamic laser speckle analysis; Elsevier Science; Optics Communications; 366; 5-2016; 185-193
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