Shack - Hartmann spot dislocation map determination using an optical flow method

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dc.contributor.authorVargas, Javierspa
dc.contributor.authorRestrepo Gómez, Renéspa
dc.contributor.authorBelenguer, Tomásspa
dc.contributor.authorVargas, Javier
dc.contributor.authorRestrepo Gómez, René
dc.contributor.authorBelenguer, Tomás
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicasspa
dc.contributor.researchgroupÓptica Aplicadaspa
dc.date.accessioned2014-07-17T21:03:54Z
dc.date.available2014-07-17T21:03:54Z
dc.date.issued2014-01-14
dc.description.abstractWe present a robust, dense, and accurate Shack-Hartmann spot dislocation map determination method based on a regularized optical flow algorithm that does not require obtaining the spot centroids. The method is capable to measure in presence of strong noise, background illumination and spot modulating signals, which are typical limiting factors of traditional centroid detection algorithms. Moreover, the proposed approach is able to face cases where some of the reference beam spots have not a corresponding one in the distorted Hartmann diagram, and it can expand the dynamic range of the Shack-Hartmann sensor unwrapping the obtained dense dislocation maps. We have tested the algorithm with both simulations and experimental data obtaining satisfactory results. A complete MATLAB package that can reproduce all the results can be downloaded from [http://goo.gl/XbZVOr].eng
dc.identifier.citationJ. Vargas, R. Restrepo, and T. Belenguer, "Shack-Hartmann spot dislocation map determination using an optical flow method," Opt. Express 22, 1319-1329 (2014) http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-2-1319spa
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/10784/2827
dc.identifier.urihttp://hdl.handle.net/10784/2827
dc.language.isoengeng
dc.publisherOSA
dc.publisher.departmentEscuela de Ciencias y Humanidadesspa
dc.relation.urihttp://dx.doi.org/10.1364/OE.22.001319
dc.rights.accessrightsinfo:eu-repo/semantics/openAccesseng
dc.rights.localAcceso abiertospa
dc.subjectÓptica adaptativaspa
dc.subjectMatlab (Programa para computador)spa
dc.subjectSensor de Hartmann-Shackspa
dc.subjectSensor de Frente de Ondaspa
dc.subjectMicrolentesspa
dc.subjectFlujo ópticospa
dc.subject.keywordOpticseng
dc.subject.keywordOptical instrumentseng
dc.subject.keywordAchromatismeng
dc.subject.keywordOptical data processingeng
dc.subject.keywordLenseseng
dc.subject.keywordImage processingeng
dc.subject.keywordÓptica adaptativaspa
dc.subject.keywordMatlab (Programa para computador)spa
dc.subject.keywordSensor de Hartmann-Shackspa
dc.subject.keywordSensor de Frente de Ondaspa
dc.subject.keywordMicrolentesspa
dc.subject.keywordFlujo ópticospa
dc.subject.lembÓPTICAspa
dc.subject.lembINSTRUMENTOS ÓPTICOSspa
dc.subject.lembACROMATISMOspa
dc.subject.lembPROCESAMIENTO ÓPTICO DE DATOSspa
dc.subject.lembLENTESspa
dc.subject.lembPROCESAMIENTO DE IMÁGENESspa
dc.titleShack - Hartmann spot dislocation map determination using an optical flow methodeng
dc.title.alternativeShack - Hartmann spot dislocation map determination using an optical flow methodspa
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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