Speckle activity images based on the spatial variance of the phase

Autores
Rabal, Héctor J.; Cap, Nelly Lucía; Trivi, Marcelo Ricardo; Arizaga, Ricardo; Federico, Alejandro; Galizzi, Gustavo E.; Kaufmann, Guillermo H.
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión enviada
Descripción
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.
Materia
Ciencias Físicas
Óptica, Acústica
Speckle activity images
variations of the phase
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
CIC Digital (CICBA)
Institución
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
OAI Identificador
oai:digital.cic.gba.gob.ar:11746/1205
Acceder
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oai_identifier_str oai:digital.cic.gba.gob.ar:11746/1205
network_acronym_str CICBA
repository_id_str 9441
network_name_str CIC Digital (CICBA)
spelling Speckle activity images based on the spatial variance of the phaseRabal, Héctor J.Cap, Nelly LucíaTrivi, Marcelo RicardoArizaga, RicardoFederico, AlejandroGalizzi, Gustavo E.Kaufmann, Guillermo H.Ciencias FísicasÓptica, AcústicaSpeckle activity imagesvariations of the phaseWe 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.2006info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/1205enghttp://digital.cic.gba.gob.ar/handle/123456789/68info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-18T10:04:49Zoai:digital.cic.gba.gob.ar:11746/1205Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-18 10:04:49.441CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv Speckle activity images based on the spatial variance of the phase
title Speckle activity images based on the spatial variance of the phase
spellingShingle Speckle activity images based on the spatial variance of the phase
Rabal, Héctor J.
Ciencias Físicas
Óptica, Acústica
Speckle activity images
variations 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
dc.creator.none.fl_str_mv Rabal, Héctor J.
Cap, Nelly Lucía
Trivi, Marcelo Ricardo
Arizaga, Ricardo
Federico, Alejandro
Galizzi, Gustavo E.
Kaufmann, Guillermo H.
author Rabal, Héctor J.
author_facet Rabal, Héctor J.
Cap, Nelly Lucía
Trivi, Marcelo Ricardo
Arizaga, Ricardo
Federico, Alejandro
Galizzi, Gustavo E.
Kaufmann, Guillermo H.
author_role author
author2 Cap, Nelly Lucía
Trivi, Marcelo Ricardo
Arizaga, Ricardo
Federico, Alejandro
Galizzi, Gustavo E.
Kaufmann, Guillermo H.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Físicas
Óptica, Acústica
Speckle activity images
variations of the phase
topic Ciencias Físicas
Óptica, Acústica
Speckle activity images
variations of the phase
dc.description.none.fl_txt_mv 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.
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.
publishDate 2006
dc.date.none.fl_str_mv 2006
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/1205
url https://digital.cic.gba.gob.ar/handle/11746/1205
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://digital.cic.gba.gob.ar/handle/123456789/68
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
reponame_str CIC Digital (CICBA)
collection CIC Digital (CICBA)
instname_str Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron_str CICBA
institution CICBA
repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
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score 13.000565

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