Approaches to otolith age determination: image signal treatment and age attribution

10 pages, 4 figures, 2 tables.

Detalles Bibliográficos
Autores: Morales-Nin, Beatriz, Lombarte, Antoni, Japón, Beatriz
Tipo de recurso: artículo
Fecha de publicación:1998
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/23369
Acceso en línea:http://hdl.handle.net/10261/23369
Access Level:acceso abierto
Palabra clave:Otoliths
Fourier analysis
Image procesing
Wavelets
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spelling Approaches to otolith age determination: image signal treatment and age attributionMorales-Nin, BeatrizLombarte, AntoniJapón, BeatrizOtolithsFourier analysisImage procesingWavelets10 pages, 4 figures, 2 tables.Population studies of fish depend upon correct age estimates. However ageing from otoliths is often a subjective activity, based on experience. To produce more objective and reproducible results, image analysis systems for semiautomatic otolith reading are being developed. We propose determinig the daily growth and annual structures in each otolith by means of Fourier analysis of the luminous signal, after filtering the high frequencies by means of a moving threshold. A new approach using spatio-frequential wavelet analysis is discussed for otolith age determination. The different readings of each otolith are standardised and weighted to obtain a combined age determination and vector of increment widths.This paper is a result of the project “PETRI.93- 034” sponsored by the Spanish CICYT.Peer reviewedConsejo Superior de Investigaciones Científicas (España)201020101998info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65011100757 bytesapplication/pdfhttp://hdl.handle.net/10261/23369reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3989/scimar.1998.62n3247info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/233692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Approaches to otolith age determination: image signal treatment and age attribution
title Approaches to otolith age determination: image signal treatment and age attribution
spellingShingle Approaches to otolith age determination: image signal treatment and age attribution
Morales-Nin, Beatriz
Otoliths
Fourier analysis
Image procesing
Wavelets
title_short Approaches to otolith age determination: image signal treatment and age attribution
title_full Approaches to otolith age determination: image signal treatment and age attribution
title_fullStr Approaches to otolith age determination: image signal treatment and age attribution
title_full_unstemmed Approaches to otolith age determination: image signal treatment and age attribution
title_sort Approaches to otolith age determination: image signal treatment and age attribution
dc.creator.none.fl_str_mv Morales-Nin, Beatriz
Lombarte, Antoni
Japón, Beatriz
author Morales-Nin, Beatriz
author_facet Morales-Nin, Beatriz
Lombarte, Antoni
Japón, Beatriz
author_role author
author2 Lombarte, Antoni
Japón, Beatriz
author2_role author
author
dc.subject.none.fl_str_mv Otoliths
Fourier analysis
Image procesing
Wavelets
topic Otoliths
Fourier analysis
Image procesing
Wavelets
description 10 pages, 4 figures, 2 tables.
publishDate 1998
dc.date.none.fl_str_mv 1998
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/23369
url http://hdl.handle.net/10261/23369
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3989/scimar.1998.62n3247
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1100757 bytes
application/pdf
dc.publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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