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

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dc.contributor.authorVargas, J.
dc.contributor.authorRestrepo, R.
dc.contributor.authorBelenguer, T.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicasspa
dc.contributor.researchgroupÓptica Aplicadaspa
dc.date.accessioned2021-04-12T14:17:43Z
dc.date.available2021-04-12T14:17:43Z
dc.date.issued2014-01-27
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]. © 2014 Optical Society of America.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1269
dc.identifier.doi10.1364/OE.22.001319
dc.identifier.issn10944087
dc.identifier.otherWOS;000330585100012
dc.identifier.otherPUBMED;24515137
dc.identifier.otherSCOPUS;2-s2.0-84893402395
dc.identifier.urihttp://hdl.handle.net/10784/27946
dc.language.isoengeng
dc.publisherOPTICAL SOC AMER
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84893402395&doi=10.1364%2fOE.22.001319&partnerID=40&md5=dd071d26232dd66067f6865a9cb3e101
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/1094-4087
dc.sourceOPTICS EXPRESS
dc.subject.keywordBackground illuminationeng
dc.subject.keywordCentroid detectioneng
dc.subject.keywordDetermination methodseng
dc.subject.keywordModulating signalseng
dc.subject.keywordOptical flow algorithmeng
dc.subject.keywordOptical flow methodseng
dc.subject.keywordReference beamseng
dc.subject.keywordShack-Hartmann sensoreng
dc.subject.keywordMATLABeng
dc.subject.keywordOptical flowseng
dc.subject.keywordalgorithmeng
dc.subject.keywordarticleeng
dc.subject.keywordautomated pattern recognitioneng
dc.subject.keywordcomputer assisted diagnosiseng
dc.subject.keywordcomputer languageeng
dc.subject.keywordcomputer programeng
dc.subject.keywordilluminationeng
dc.subject.keywordmethodologyeng
dc.subject.keywordAlgorithmseng
dc.subject.keywordImage Interpretationeng
dc.subject.keywordComputer-Assistedeng
dc.subject.keywordLightingeng
dc.subject.keywordPattern Recognitioneng
dc.subject.keywordAutomatedeng
dc.subject.keywordProgramming Languageseng
dc.subject.keywordSoftwareeng
dc.titleShack-Hartmann spot dislocation map determination using an optical flow methodeng
dc.typeinfo:eu-repo/semantics/conferencePapereng
dc.typeconferencePapereng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localDocumento de conferenciaspa

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