Non-uniform heating compensation for sequences of thermal images using median filtering

Herein, we introduce a new thermal contrast enhancement procedure for infrared images, acquired from a non-destructive evaluation of composite slabs through active infrared thermography experiments. This technique can compensate for the vignetting effect, as well as the non-uniform heating produced...

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Autores:
Restrepo Girón, Andrés David
Loaiza Correa, Humberto
Tipo de recurso:
Article of journal
Fecha de publicación:
2013
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/39300
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/39300
http://bdigital.unal.edu.co/29397/
Palabra clave:
infrared thermography
active infrared thermography
thermal contrast
non-uniform heating
vignetting
unsharp masking
median filter
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Restrepo Girón, Andrés David7e87df7d-a1ac-425d-9051-400d70adab01300Loaiza Correa, Humberto0da5cc04-2e56-4288-b488-2a8d3744a48a3002019-06-28T03:39:49Z2019-06-28T03:39:49Z2013https://repositorio.unal.edu.co/handle/unal/39300http://bdigital.unal.edu.co/29397/Herein, we introduce a new thermal contrast enhancement procedure for infrared images, acquired from a non-destructive evaluation of composite slabs through active infrared thermography experiments. This technique can compensate for the vignetting effect, as well as the non-uniform heating produced by the thermal excitation scheme. The proposed technique does not depend on any heat propagation model but almost exclusively on experimental data, because it is based on an unsharp mask operation using a median filter. The preliminary results show that real and apparent non-uniform heating is effectively compensated with this method, resulting in better images of possible internal defects than other classic methods like Differential Absolute Contrast (DAC), and therefore increasing the probability of more efficient detection and characterization procedures; specifically, the non-uniformity effect on the original sequence could be reduced by about 74%, according to a non-uniformity parameter defined in this work, as well.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/27791Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 80, núm. 182 (2013); 74-82 DYNA; Vol. 80, núm. 182 (2013); 74-82 2346-2183 0012-7353Restrepo Girón, Andrés David and Loaiza Correa, Humberto (2013) Non-uniform heating compensation for sequences of thermal images using median filtering. Dyna; Vol. 80, núm. 182 (2013); 74-82 DYNA; Vol. 80, núm. 182 (2013); 74-82 2346-2183 0012-7353 .Non-uniform heating compensation for sequences of thermal images using median filteringArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTinfrared thermographyactive infrared thermographythermal contrastnon-uniform heatingvignettingunsharp maskingmedian filterORIGINAL27791-98046-1-SP.pdfapplication/pdf206242https://repositorio.unal.edu.co/bitstream/unal/39300/1/27791-98046-1-SP.pdf5bc9fc381f57a7ed41d25e1353bfb783MD5127791-188328-1-PB.pdfapplication/pdf1660804https://repositorio.unal.edu.co/bitstream/unal/39300/2/27791-188328-1-PB.pdf4cd8b2f41c2a79e6a4c9e3298fbec5a1MD52THUMBNAIL27791-98046-1-SP.pdf.jpg27791-98046-1-SP.pdf.jpgGenerated Thumbnailimage/jpeg6381https://repositorio.unal.edu.co/bitstream/unal/39300/3/27791-98046-1-SP.pdf.jpg409ed5709e8280025b2b0b493a25a788MD5327791-188328-1-PB.pdf.jpg27791-188328-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9486https://repositorio.unal.edu.co/bitstream/unal/39300/4/27791-188328-1-PB.pdf.jpg90745125c8a3a7fa32d633cab4487705MD54unal/39300oai:repositorio.unal.edu.co:unal/393002023-01-23 23:03:36.217Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Non-uniform heating compensation for sequences of thermal images using median filtering
title Non-uniform heating compensation for sequences of thermal images using median filtering
spellingShingle Non-uniform heating compensation for sequences of thermal images using median filtering
infrared thermography
active infrared thermography
thermal contrast
non-uniform heating
vignetting
unsharp masking
median filter
title_short Non-uniform heating compensation for sequences of thermal images using median filtering
title_full Non-uniform heating compensation for sequences of thermal images using median filtering
title_fullStr Non-uniform heating compensation for sequences of thermal images using median filtering
title_full_unstemmed Non-uniform heating compensation for sequences of thermal images using median filtering
title_sort Non-uniform heating compensation for sequences of thermal images using median filtering
dc.creator.fl_str_mv Restrepo Girón, Andrés David
Loaiza Correa, Humberto
dc.contributor.author.spa.fl_str_mv Restrepo Girón, Andrés David
Loaiza Correa, Humberto
dc.subject.proposal.spa.fl_str_mv infrared thermography
active infrared thermography
thermal contrast
non-uniform heating
vignetting
unsharp masking
median filter
topic infrared thermography
active infrared thermography
thermal contrast
non-uniform heating
vignetting
unsharp masking
median filter
description Herein, we introduce a new thermal contrast enhancement procedure for infrared images, acquired from a non-destructive evaluation of composite slabs through active infrared thermography experiments. This technique can compensate for the vignetting effect, as well as the non-uniform heating produced by the thermal excitation scheme. The proposed technique does not depend on any heat propagation model but almost exclusively on experimental data, because it is based on an unsharp mask operation using a median filter. The preliminary results show that real and apparent non-uniform heating is effectively compensated with this method, resulting in better images of possible internal defects than other classic methods like Differential Absolute Contrast (DAC), and therefore increasing the probability of more efficient detection and characterization procedures; specifically, the non-uniformity effect on the original sequence could be reduced by about 74%, according to a non-uniformity parameter defined in this work, as well.
publishDate 2013
dc.date.issued.spa.fl_str_mv 2013
dc.date.accessioned.spa.fl_str_mv 2019-06-28T03:39:49Z
dc.date.available.spa.fl_str_mv 2019-06-28T03:39:49Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/29397/
url https://repositorio.unal.edu.co/handle/unal/39300
http://bdigital.unal.edu.co/29397/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/dyna/article/view/27791
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.ispartofseries.none.fl_str_mv Dyna; Vol. 80, núm. 182 (2013); 74-82 DYNA; Vol. 80, núm. 182 (2013); 74-82 2346-2183 0012-7353
dc.relation.references.spa.fl_str_mv Restrepo Girón, Andrés David and Loaiza Correa, Humberto (2013) Non-uniform heating compensation for sequences of thermal images using median filtering. Dyna; Vol. 80, núm. 182 (2013); 74-82 DYNA; Vol. 80, núm. 182 (2013); 74-82 2346-2183 0012-7353 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
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dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia Sede Medellín
institution Universidad Nacional de Colombia
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