Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/8562
Full metadata record
DC FieldValueLanguage
dc.contributor.authorNúñez de Murga, Jorge, 1955-cat
dc.contributor.authorFors Aldrich, Octavicat
dc.contributor.authorOtazu Porter, Xaviercat
dc.contributor.authorPalà, Vicençcat
dc.contributor.authorArbiol, Románcat
dc.contributor.authorMerino Espasa, María Teresacat
dc.date.accessioned2009-06-09T07:38:28Z-
dc.date.available2009-06-09T07:38:28Z-
dc.date.issued2006cat
dc.identifier.issn0196-2892cat
dc.identifier.urihttp://hdl.handle.net/2445/8562-
dc.description.abstractSpatial resolution is a key parameter of all remote sensing satellites and platforms. The nominal spatial resolution of satellites is a well-known characteristic because it is directly related to the area in ground that represents a pixel in the detector. Nevertheless, in practice, the actual resolution of a specific image obtained from a satellite is difficult to know precisely because it depends on many other factors such as atmospheric conditions. However, if one has two or more images of the same region, it is possible to compare their relative resolutions. In this paper, a wavelet-decomposition-based method for the determination of the relative resolution between two remotely sensed images of the same area is proposed. The method can be applied to panchromatic, multispectral, and mixed (one panchromatic and one multispectral) images. As an example, the method was applied to compute the relative resolution between SPOT-3, Landsat-5, and Landsat-7 panchromatic and multispectral images taken under similar as well as under very different conditions. On the other hand, if the true absolute resolution of one of the images of the pair is known, the resolution of the other can be computed. Thus, in the last part of this paper, a spatial calibrator that is designed and constructed to help compute the absolute resolution of a single remotely sensed image is described, and an example of its use is presented.eng
dc.format.extent10 p.cat
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherIEEEcat
dc.relation.isformatofReproducció del document publicat a http://dx.doi.org/10.1109/TGRS.2006.875359cat
dc.relation.ispartofIEEE Transactions on Geoscience and Remote Sensing, 2006, vol. 44, núm. 9, p. 2539-2548.cat
dc.relation.urihttp://dx.doi.org/10.1109/TGRS.2006.875359-
dc.rights(c) IEEE, 2006cat
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationSatèl·lits artificialscat
dc.subject.classificationTeledetecciócat
dc.subject.otherArtificial satelliteseng
dc.subject.otherImage resolutioneng
dc.subject.otherRemote sensingeng
dc.subject.otherWavelet transformseng
dc.titleA wavelet-based method for the determination of the relative resolution between remotely sensed imageseng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec513682cat
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
513682.pdf696.04 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.