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

Detalhes bibliográficos
Autor(a) principal: Ana Maria Mendonça
Data de Publicação: 2013
Outros Autores: Sousa,A, Mendonca,L, Aurélio Campilho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://repositorio.inesctec.pt/handle/123456789/6019
http://dx.doi.org/10.1016/j.compmedimag.2013.04.004
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 informationThis 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.2018-01-13T18:36:11Z2013-01-01T00:00:00Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.inesctec.pt/handle/123456789/6019http://dx.doi.org/10.1016/j.compmedimag.2013.04.004engAna Maria MendonçaSousa,AMendonca,LAurélio Campilhoinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-05-15T10:20:41Zoai:repositorio.inesctec.pt:123456789/6019Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:53:29.586820Repositório 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
Ana Maria Mendonça
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 Ana Maria Mendonça
author_facet Ana Maria Mendonça
Sousa,A
Mendonca,L
Aurélio Campilho
author_role author
author2 Sousa,A
Mendonca,L
Aurélio Campilho
author2_role author
author
author
dc.contributor.author.fl_str_mv Ana Maria Mendonça
Sousa,A
Mendonca,L
Aurélio Campilho
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
2018-01-13T18:36:11Z
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://repositorio.inesctec.pt/handle/123456789/6019
http://dx.doi.org/10.1016/j.compmedimag.2013.04.004
url http://repositorio.inesctec.pt/handle/123456789/6019
http://dx.doi.org/10.1016/j.compmedimag.2013.04.004
dc.language.iso.fl_str_mv eng
language eng
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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
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