Volumetric non-local-means based speckle reduction for optical coherence tomography

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dc.citation.journalTitleBIOMEDICAL OPTICS EXPRESSeng
dc.contributor.authorCuartas-Vélez, C.
dc.contributor.authorRestrepo, R.
dc.contributor.authorBouma, B.E.
dc.contributor.authorUribe-Patarroyo, N.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicasspa
dc.contributor.researchgroupÓptica Aplicadaspa
dc.date.accessioned2021-04-12T14:18:43Z
dc.date.available2021-04-12T14:18:43Z
dc.date.issued2018-07-01
dc.description.abstractWe present a novel tomographic non-local-means based despeckling technique, TNode, for optical coherence tomography. TNode is built upon a weighting similarity criterion derived for speckle in a three-dimensional similarity window. We present an implementation using a two-dimensional search window, enabling the despeckling of volumes in the presence of motion artifacts, and an implementation using a three-dimensional window with improved performance in motion-free volumes. We show that our technique provides effective speckle reduction, comparable with B-scan compounding or out-of-plane averaging, while preserving isotropic resolution, even to the level of speckle-sized structures. We demonstrate its superior despeckling performance in a phantom data set, and in an ophthalmic data set we show that small, speckle-sized retinal vessels are clearly preserved in intensity images en-face and in two orthogonal, cross-sectional views. TNode does not rely on dictionaries or segmentation and therefore can readily be applied to arbitrary optical coherence tomography volumes. We show that despeckled esophageal volumes exhibit improved image quality and detail, even in the presence of significant motion artifacts. © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=8209
dc.identifier.doi10.1364/BOE.9.003354
dc.identifier.issn21567085
dc.identifier.otherWOS;000437460600031
dc.identifier.otherPUBMED;29984102
dc.identifier.otherSCOPUS;2-s2.0-85049361384
dc.identifier.urihttp://hdl.handle.net/10784/27999
dc.languageeng
dc.language.isoengeng
dc.publisherOSA - The Optical Society
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85049361384&doi=10.1364%2fBOE.9.003354&partnerID=40&md5=5231fcf6480b40985e9b0a7437d1b402
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/2156-7085
dc.sourceBIOMEDICAL OPTICS EXPRESS
dc.subject.keywordComputerized tomographyeng
dc.subject.keywordImage denoisingeng
dc.subject.keywordImage enhancementeng
dc.subject.keywordOptical tomographyeng
dc.subject.keywordIntensity imageseng
dc.subject.keywordIsotropic resolutioneng
dc.subject.keywordMotion artifacteng
dc.subject.keywordRetinal vesselseng
dc.subject.keywordSectional viewseng
dc.subject.keywordSimilarity criteriaeng
dc.subject.keywordSpeckle reductioneng
dc.subject.keywordTwo-dimensional searcheng
dc.subject.keywordSpeckleeng
dc.subject.keywordcelluloseeng
dc.subject.keywordintralipideng
dc.subject.keywordArticleeng
dc.subject.keywordartifacteng
dc.subject.keywordcontrast to noise ratioeng
dc.subject.keywordimage processingeng
dc.subject.keywordimage qualityeng
dc.subject.keywordimage segmentationeng
dc.subject.keywordmovement (physiology)eng
dc.subject.keywordoptical coherence tomographyeng
dc.subject.keywordsignal noise ratioeng
dc.titleVolumetric non-local-means based speckle reduction for optical coherence tomographyeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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