Edge detector tolerant to object defocusing

Autores
Mazzaferri, Javier E.; Campos, Juan; Escalera, Juan C.; Sheppard, Colin J. R.; Ledesma, Silvia Adriana
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Different methods for edge extraction have been studied in the past years. In a recent paper we have presented a rotation-invariant edge extractor based on a spiral phase filter placed in the frequency plane of a convergent correlator. In this architecture, the axial position of the output plane strongly depends on the axial position of the object. This condition limits the processing of three dimensional objects, because only a narrow axial region of the object would be correctly imaged to the output. The other axial regions of the target yield defocused results. Likewise, a rather small axial misalignment of planar scenes could produce completely inaccurate correlations. Besides, annular pupils have been widely used to regulate the depth of focus (DOF) and the transversal resolution of optical systems. In this paper we present a novel filter that combines the advantages of a spiral phase-based edge extractor and those of an axial-apodizing annular pupil. This design allows edge extraction of objects in a widened axial range. Numerical simulations and experimental results that demonstrate edge extraction with improved tolerance to defocusing are presented.
Fil: Mazzaferri, Javier E.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Procesado de Imágenes; Argentina
Fil: Campos, Juan. Universitat Autònoma de Barcelona; España
Fil: Escalera, Juan C.. Universitat Autònoma de Barcelona; España
Fil: Sheppard, Colin J. R.. National University of Singapore; Singapur
Fil: Ledesma, Silvia Adriana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Procesado de Imágenes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Enhancement
Feature Extraction Edge
Optical Processing
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68143
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Edge detector tolerant to object defocusingMazzaferri, Javier E.Campos, JuanEscalera, Juan C.Sheppard, Colin J. R.Ledesma, Silvia AdrianaEnhancementFeature Extraction EdgeOptical Processinghttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Different methods for edge extraction have been studied in the past years. In a recent paper we have presented a rotation-invariant edge extractor based on a spiral phase filter placed in the frequency plane of a convergent correlator. In this architecture, the axial position of the output plane strongly depends on the axial position of the object. This condition limits the processing of three dimensional objects, because only a narrow axial region of the object would be correctly imaged to the output. The other axial regions of the target yield defocused results. Likewise, a rather small axial misalignment of planar scenes could produce completely inaccurate correlations. Besides, annular pupils have been widely used to regulate the depth of focus (DOF) and the transversal resolution of optical systems. In this paper we present a novel filter that combines the advantages of a spiral phase-based edge extractor and those of an axial-apodizing annular pupil. This design allows edge extraction of objects in a widened axial range. Numerical simulations and experimental results that demonstrate edge extraction with improved tolerance to defocusing are presented.Fil: Mazzaferri, Javier E.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Procesado de Imágenes; ArgentinaFil: Campos, Juan. Universitat Autònoma de Barcelona; EspañaFil: Escalera, Juan C.. Universitat Autònoma de Barcelona; EspañaFil: Sheppard, Colin J. R.. National University of Singapore; SingapurFil: Ledesma, Silvia Adriana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Procesado de Imágenes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2010-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68143Mazzaferri, Javier E.; Campos, Juan; Escalera, Juan C.; Sheppard, Colin J. R.; Ledesma, Silvia Adriana; Edge detector tolerant to object defocusing; Elsevier Science; Optics Communications; 283; 19; 10-2010; 3639-36450030-4018CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.optcom.2010.05.016info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0030401810004839info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:11:01Zoai:ri.conicet.gov.ar:11336/68143instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:11:02.036CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Edge detector tolerant to object defocusing
title Edge detector tolerant to object defocusing
spellingShingle Edge detector tolerant to object defocusing
Mazzaferri, Javier E.
Enhancement
Feature Extraction Edge
Optical Processing
title_short Edge detector tolerant to object defocusing
title_full Edge detector tolerant to object defocusing
title_fullStr Edge detector tolerant to object defocusing
title_full_unstemmed Edge detector tolerant to object defocusing
title_sort Edge detector tolerant to object defocusing
dc.creator.none.fl_str_mv Mazzaferri, Javier E.
Campos, Juan
Escalera, Juan C.
Sheppard, Colin J. R.
Ledesma, Silvia Adriana
author Mazzaferri, Javier E.
author_facet Mazzaferri, Javier E.
Campos, Juan
Escalera, Juan C.
Sheppard, Colin J. R.
Ledesma, Silvia Adriana
author_role author
author2 Campos, Juan
Escalera, Juan C.
Sheppard, Colin J. R.
Ledesma, Silvia Adriana
author2_role author
author
author
author
dc.subject.none.fl_str_mv Enhancement
Feature Extraction Edge
Optical Processing
topic Enhancement
Feature Extraction Edge
Optical Processing
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Different methods for edge extraction have been studied in the past years. In a recent paper we have presented a rotation-invariant edge extractor based on a spiral phase filter placed in the frequency plane of a convergent correlator. In this architecture, the axial position of the output plane strongly depends on the axial position of the object. This condition limits the processing of three dimensional objects, because only a narrow axial region of the object would be correctly imaged to the output. The other axial regions of the target yield defocused results. Likewise, a rather small axial misalignment of planar scenes could produce completely inaccurate correlations. Besides, annular pupils have been widely used to regulate the depth of focus (DOF) and the transversal resolution of optical systems. In this paper we present a novel filter that combines the advantages of a spiral phase-based edge extractor and those of an axial-apodizing annular pupil. This design allows edge extraction of objects in a widened axial range. Numerical simulations and experimental results that demonstrate edge extraction with improved tolerance to defocusing are presented.
Fil: Mazzaferri, Javier E.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Procesado de Imágenes; Argentina
Fil: Campos, Juan. Universitat Autònoma de Barcelona; España
Fil: Escalera, Juan C.. Universitat Autònoma de Barcelona; España
Fil: Sheppard, Colin J. R.. National University of Singapore; Singapur
Fil: Ledesma, Silvia Adriana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Procesado de Imágenes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Different methods for edge extraction have been studied in the past years. In a recent paper we have presented a rotation-invariant edge extractor based on a spiral phase filter placed in the frequency plane of a convergent correlator. In this architecture, the axial position of the output plane strongly depends on the axial position of the object. This condition limits the processing of three dimensional objects, because only a narrow axial region of the object would be correctly imaged to the output. The other axial regions of the target yield defocused results. Likewise, a rather small axial misalignment of planar scenes could produce completely inaccurate correlations. Besides, annular pupils have been widely used to regulate the depth of focus (DOF) and the transversal resolution of optical systems. In this paper we present a novel filter that combines the advantages of a spiral phase-based edge extractor and those of an axial-apodizing annular pupil. This design allows edge extraction of objects in a widened axial range. Numerical simulations and experimental results that demonstrate edge extraction with improved tolerance to defocusing are presented.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68143
Mazzaferri, Javier E.; Campos, Juan; Escalera, Juan C.; Sheppard, Colin J. R.; Ledesma, Silvia Adriana; Edge detector tolerant to object defocusing; Elsevier Science; Optics Communications; 283; 19; 10-2010; 3639-3645
0030-4018
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68143
identifier_str_mv Mazzaferri, Javier E.; Campos, Juan; Escalera, Juan C.; Sheppard, Colin J. R.; Ledesma, Silvia Adriana; Edge detector tolerant to object defocusing; Elsevier Science; Optics Communications; 283; 19; 10-2010; 3639-3645
0030-4018
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.optcom.2010.05.016
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0030401810004839
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.221938

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