Decomposition of biospeckle images in temporary spectral bands

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We present a method of analysis of images of dynamic speckle based on the filtering in frequency bands of the temporary history of each pixel. Butterworth filters are applied to the temporary evolution, and different images are constructed showing the energy in each frequency band. Different degrees...

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Detalles Bibliográficos
Autores principales: Sendra, Gonzalo Hernán, Arizaga, Ricardo, Rabal, Héctor Jorge, Trivi, Marcelo Ricardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Física
method of analysis of images
dynamic speckle
frequency bands
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80646
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80646
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
method of analysis of images
dynamic speckle
frequency bands
spellingShingle Física
method of analysis of images
dynamic speckle
frequency bands
Sendra, Gonzalo Hernán
Arizaga, Ricardo
Rabal, Héctor Jorge
Trivi, Marcelo Ricardo
Decomposition of biospeckle images in temporary spectral bands
topic_facet Física
method of analysis of images
dynamic speckle
frequency bands
description We present a method of analysis of images of dynamic speckle based on the filtering in frequency bands of the temporary history of each pixel. Butterworth filters are applied to the temporary evolution, and different images are constructed showing the energy in each frequency band. Different degrees of activity of the sample in study, presumably attributed to different origins, are found. The method is exemplified with images of bruising damage in fruits and of biological activity in germinating corn seeds. It is found that the activity in the bruised region of an apple differs from the activity of healthy regions in a certain characteristic frequency range. The activity of the embryo can also be distinguished from that of the endosperm in corn seeds during germination.
format Articulo
Articulo
author Sendra, Gonzalo Hernán
Arizaga, Ricardo
Rabal, Héctor Jorge
Trivi, Marcelo Ricardo
author_facet Sendra, Gonzalo Hernán
Arizaga, Ricardo
Rabal, Héctor Jorge
Trivi, Marcelo Ricardo
author_sort Sendra, Gonzalo Hernán
title Decomposition of biospeckle images in temporary spectral bands
title_short Decomposition of biospeckle images in temporary spectral bands
title_full Decomposition of biospeckle images in temporary spectral bands
title_fullStr Decomposition of biospeckle images in temporary spectral bands
title_full_unstemmed Decomposition of biospeckle images in temporary spectral bands
title_sort decomposition of biospeckle images in temporary spectral bands
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/80646
work_keys_str_mv AT sendragonzalohernan decompositionofbiospeckleimagesintemporaryspectralbands
AT arizagaricardo decompositionofbiospeckleimagesintemporaryspectralbands
AT rabalhectorjorge decompositionofbiospeckleimagesintemporaryspectralbands
AT trivimarceloricardo decompositionofbiospeckleimagesintemporaryspectralbands
bdutipo_str Repositorios
_version_ 1764820487209222144

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