Speckle activity images based on the spatial variance of the phase

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We propose the display of the local spatial variance of the temporal variations of the phase as an activity descriptor in dynamic speckle images. The spatial autocorrelation of the speckle intensity is calculated in sliding windows, and an estimation of the variance of the phase variations in each r...

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Detalles Bibliográficos
Autores principales: Rabal, Héctor Jorge, Cap, Nelly Lucía, Trivi, Marcelo Ricardo, Arizaga, Ricardo, Federico, Alejandro, Galizzi, Gustavo E., Kaufmann, Guillermo H.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Física
Speckle activity images
variations of the phase
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80644
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80644
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Speckle activity images
variations of the phase
spellingShingle Física
Speckle activity images
variations of the phase
Rabal, Héctor Jorge
Cap, Nelly Lucía
Trivi, Marcelo Ricardo
Arizaga, Ricardo
Federico, Alejandro
Galizzi, Gustavo E.
Kaufmann, Guillermo H.
Speckle activity images based on the spatial variance of the phase
topic_facet Física
Speckle activity images
variations of the phase
description We propose the display of the local spatial variance of the temporal variations of the phase as an activity descriptor in dynamic speckle images. The spatial autocorrelation of the speckle intensity is calculated in sliding windows, and an estimation of the variance of the phase variations in each region of the sample is determined. The activity images obtained in this way depict some interesting features and in some cases they could be related to physical magnitudes in the samples. A simulation is presented, and examples corresponding to usual study cases are also shown, namely, fruit bruising and paint drying.
format Articulo
Articulo
author Rabal, Héctor Jorge
Cap, Nelly Lucía
Trivi, Marcelo Ricardo
Arizaga, Ricardo
Federico, Alejandro
Galizzi, Gustavo E.
Kaufmann, Guillermo H.
author_facet Rabal, Héctor Jorge
Cap, Nelly Lucía
Trivi, Marcelo Ricardo
Arizaga, Ricardo
Federico, Alejandro
Galizzi, Gustavo E.
Kaufmann, Guillermo H.
author_sort Rabal, Héctor Jorge
title Speckle activity images based on the spatial variance of the phase
title_short Speckle activity images based on the spatial variance of the phase
title_full Speckle activity images based on the spatial variance of the phase
title_fullStr Speckle activity images based on the spatial variance of the phase
title_full_unstemmed Speckle activity images based on the spatial variance of the phase
title_sort speckle activity images based on the spatial variance of the phase
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/80644
work_keys_str_mv AT rabalhectorjorge speckleactivityimagesbasedonthespatialvarianceofthephase
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AT arizagaricardo speckleactivityimagesbasedonthespatialvarianceofthephase
AT federicoalejandro speckleactivityimagesbasedonthespatialvarianceofthephase
AT galizzigustavoe speckleactivityimagesbasedonthespatialvarianceofthephase
AT kaufmannguillermoh speckleactivityimagesbasedonthespatialvarianceofthephase
bdutipo_str Repositorios
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