Shack-Hartmann centroid detection using the spiral phase transform

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dc.citation.journalTitleAPPL OPTICSeng
dc.contributor.authorVargas, J.
dc.contributor.authorRestrepo, R.
dc.contributor.authorEstrada, J.C.
dc.contributor.authorSorzano, C.O.S.
dc.contributor.authorDu, Y.-Z.
dc.contributor.authorCarazo, J.M.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicasspa
dc.contributor.researchgroupÓptica Aplicadaspa
dc.date.accessioned2021-04-12T14:17:31Z
dc.date.available2021-04-12T14:17:31Z
dc.date.issued2012-01-01
dc.description.abstractWe present a Shack-Hartmann (SH) centroid detection algorithm capable to measure in presence of strong noise, background illumination and spot modulating signals, which are typical limiting factors of traditional centroid detection algorithms. The proposed method is based on performing a normalization of the SH pattern using the spiral phase transform method and Fourier filtering. The spot centroids are then obtained using global thresholding and weighted average methods. We have tested the algorithm with simulations and experimental data obtaining satisfactory results. A complete MATLAB package that can reproduce all the results can be downloaded from [http://goo.gl/o2JhD]. © 2012 Optical Society of America.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=5497
dc.identifier.doi10.1364/AO.51.007362
dc.identifier.issn00036935
dc.identifier.issn15394522
dc.identifier.otherWOS;000310430900031
dc.identifier.otherPUBMED;23089793
dc.identifier.urihttp://hdl.handle.net/10784/27941
dc.languageeng
dc.language.isoengeng
dc.publisherOSA - The Optical Society of America
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0003-6935
dc.sourceAPPL OPTICS
dc.subject.keywordalgorithmeng
dc.subject.keywordarticleeng
dc.subject.keywordFourier analysiseng
dc.subject.keywordimage processingeng
dc.subject.keywordlighteng
dc.subject.keywordmethodologyeng
dc.subject.keywordtransducereng
dc.subject.keywordAlgorithmseng
dc.subject.keywordFourier Analysiseng
dc.subject.keywordImage Processingeng
dc.subject.keywordComputer-Assistedeng
dc.subject.keywordLighteng
dc.subject.keywordTransducerseng
dc.titleShack-Hartmann centroid detection using the spiral phase transformeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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