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dc.coverage.spatialNEW YORK
dc.creatorIRARRAZAVAL-MENA, PABLO
dc.creatorLISBOA-CORDARO, JUAN
dc.creatorGUARINI-HERRMANN, MARCELO
dc.date.accessioned2017-04-27T18:50:58Z
dc.date.available2017-04-27T18:50:58Z
dc.date.issued2002
dc.identifier.issn0730-725X
dc.identifier.urihttp://hdl.handle.net/10533/197246
dc.description.abstractA post-processing technique is presented for correcting images undersampled in k-space. The method works by taking advantage of the image's background zeros (dynamically segmented through the application of a threshold) to extrapolate the missing k-space samples. The algorithm can produce good quality images from a small set of k-space frequencies with only a few iterations of simple matrix operations, using the image entropy as the focus criterion. It does not require any special patient preparation, extra pulse sequences, complex gradient programming or specialized hardware. This makes it a good candidate for any application that requires short scan times or where only few frequencies can be sampled. (C) 2002 Elsevier Science Inc. All rights reserved.
dc.language.isoENG
dc.publisherELSEVIER SCIENCE INC
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.titleA correction algorithm for undersampled images using dynamic segmentation and entropy based focus criterion
dc.typeArticulo
dc.bibliographicCitation.stpage659
dc.bibliographicCitation.endpage666
dc.identifier.folioD99I1018
dc.country.isoUSA
dc.description.citasisi3
dc.description.conicytprogramFONDEF
dc.description.email0
dc.description.investmentarticle0
dc.description.number9
dc.description.volume20
dc.identifier.isiWOS:000179843400004
dc.relation.projectidinfo:eu-repo/grantAgreement/Fondef/D99I1018
dc.relation.setinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.title.journalMAGNETIC RESONANCE IMAGING
dc.title.journalabbreviationMagn. Reson. Imaging
dc.type.driverinfo:eu-repo/semantics/article
dc.description.shortconicytprogramFONDEF
dc.identifier.eissn0
dc.description.agrad0
dc.type.openaireinfo:eu-repo/semantics/publishedVersion


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