Automatic localization of the optic disc by combining vascular and intensity information

Detalhes bibliográficos
Autor(a) principal: Mendonça, AM
Data de Publicação: 2013
Outros Autores: Sousa, A, Mendonça, L, Campilho, A
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.23/583
Resumo: This paper describes a new methodology for automatic location of the optic disc in retinal images, based on the combination of information taken from the blood vessel network with intensity data. The distribution of vessel orientations around an image point is quantified using the new concept of entropy of vascular directions. The robustness of the method for OD localization is improved by constraining the search for maximal values of entropy to image areas with high intensities. The method was able to obtain a valid location for the optic disc in 1357 out of the 1361 images of the four datasets.
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spelling Automatic localization of the optic disc by combining vascular and intensity informationInterpretação de Imagem Assistida por ComputadorPontos de Referência AnatómicosAlgoritmosDisco ÓpticoThis paper describes a new methodology for automatic location of the optic disc in retinal images, based on the combination of information taken from the blood vessel network with intensity data. The distribution of vessel orientations around an image point is quantified using the new concept of entropy of vascular directions. The robustness of the method for OD localization is improved by constraining the search for maximal values of entropy to image areas with high intensities. The method was able to obtain a valid location for the optic disc in 1357 out of the 1361 images of the four datasets.ElsevierRepositório Científico do Hospital de BragaMendonça, AMSousa, AMendonça, LCampilho, A2014-02-14T15:39:16Z2013-01-01T00:00:00Z2013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.23/583engComput Med Imaging Graph. 2013;37(5-6):409-17.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-21T09:02:16Zoai:repositorio.hospitaldebraga.pt:10400.23/583Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:55:13.933658Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Automatic localization of the optic disc by combining vascular and intensity information
title Automatic localization of the optic disc by combining vascular and intensity information
spellingShingle Automatic localization of the optic disc by combining vascular and intensity information
Mendonça, AM
Interpretação de Imagem Assistida por Computador
Pontos de Referência Anatómicos
Algoritmos
Disco Óptico
title_short Automatic localization of the optic disc by combining vascular and intensity information
title_full Automatic localization of the optic disc by combining vascular and intensity information
title_fullStr Automatic localization of the optic disc by combining vascular and intensity information
title_full_unstemmed Automatic localization of the optic disc by combining vascular and intensity information
title_sort Automatic localization of the optic disc by combining vascular and intensity information
author Mendonça, AM
author_facet Mendonça, AM
Sousa, A
Mendonça, L
Campilho, A
author_role author
author2 Sousa, A
Mendonça, L
Campilho, A
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Hospital de Braga
dc.contributor.author.fl_str_mv Mendonça, AM
Sousa, A
Mendonça, L
Campilho, A
dc.subject.por.fl_str_mv Interpretação de Imagem Assistida por Computador
Pontos de Referência Anatómicos
Algoritmos
Disco Óptico
topic Interpretação de Imagem Assistida por Computador
Pontos de Referência Anatómicos
Algoritmos
Disco Óptico
description This paper describes a new methodology for automatic location of the optic disc in retinal images, based on the combination of information taken from the blood vessel network with intensity data. The distribution of vessel orientations around an image point is quantified using the new concept of entropy of vascular directions. The robustness of the method for OD localization is improved by constraining the search for maximal values of entropy to image areas with high intensities. The method was able to obtain a valid location for the optic disc in 1357 out of the 1361 images of the four datasets.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01T00:00:00Z
2013-01-01T00:00:00Z
2014-02-14T15:39:16Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.23/583
url http://hdl.handle.net/10400.23/583
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Comput Med Imaging Graph. 2013;37(5-6):409-17.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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