Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/48666
DC FieldValueLanguage
dc.contributor.authorMarcello, J.en_US
dc.contributor.authorEugenio, F.en_US
dc.contributor.authorMedina, A.en_US
dc.date.accessioned2018-11-23T23:53:51Z-
dc.date.available2018-11-23T23:53:51Z-
dc.date.issued2012en_US
dc.identifier.isbn9780819492715en_US
dc.identifier.issn0277-786Xen_US
dc.identifier.otherWoS-
dc.identifier.urihttp://hdl.handle.net/10553/48666-
dc.description.abstractThe singular characteristics of the Canarian archipelago (Spain) and, in particular, of the Gran Canaria island have allowed the development of a unique biological richness. Almost half of its territory is protected to preserve the natural environment and, in consequence, the monitoring of vegetated regions plays an important role for regional administrations which aim to develop the corresponding policies for the conservation of such ecosystems. The Normalized Difference Vegetation Index (NDVI) is a common index applied for vegetation studies. It is important to emphasize that NDVI is sensor-dependent, and changes are affected by soil background, irradiance, solar position, atmospheric attenuation, season, hydric situation and climate of the area. So, a fixed threshold cannot be set, even for the same sensor or season, to properly segment vegetated areas. In this context, a robust methodology has been applied to ensure a reliable estimation of changes using the same sensor in multiple dates or different sensors. To that respect, a supervised procedure is presented consisting on the selection of different regions within each image to precisely map each cover with its associated NDVI values and, in consequence, obtain for each individual image the optimal threshold to properly segment vegetation without the need to perform the complex preprocessing required to estimate the ground reflectivity. On the other hand, fires are an important aspect of an ecosystem and their study, a fundamental task to perform a complete assessment of the environmental and economic damage. In our work we have also analyzed in detail the fire occurring during 2007 and precisely assessed the results.en_US
dc.languageengen_US
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.sourceProceedings of SPIE - The International Society for Optical Engineering[ISSN 0277-786X],v. 8531 (85311R)en_US
dc.subject3307 Tecnología electrónicaen_US
dc.subject.otherVegetationen_US
dc.subject.otherImage segmentationen_US
dc.subject.otherEarth observing sensorsen_US
dc.subject.otherLandsaten_US
dc.subject.otherCompositesen_US
dc.subject.otherImage resolutionen_US
dc.titleAnalysis of regional vegetation changes with medium and high resolution imageryen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.typeConferenceObjecten_US
dc.relation.conferenceRemote Sensing for Agriculture, Ecosystems, and Hydrology XIV Conferenceen_US
dc.identifier.doi10.1117/12.974385en_US
dc.identifier.scopus84880312508-
dc.identifier.isi000313661400050-
dc.contributor.authorscopusid6602158797-
dc.contributor.authorscopusid6603605357-
dc.contributor.authorscopusid55334778300-
dc.identifier.issue85311R-
dc.relation.volume8531en_US
dc.investigacionIngeniería y Arquitecturaen_US
dc.type2Actas de congresosen_US
dc.contributor.daisngid702897-
dc.contributor.daisngid5242233-
dc.contributor.daisngid5194317-
dc.description.numberofpages11en_US
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Marcello, J-
dc.contributor.wosstandardWOS:Eugenio, F-
dc.contributor.wosstandardWOS:Medina, A-
dc.date.coverdateDiciembre 2012en_US
dc.identifier.conferenceidevents120812-
dc.identifier.ulpgces
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.event.eventsstartdate24-09-2012-
crisitem.event.eventsenddate26-09-2012-
crisitem.author.deptIOCAG: Procesado de Imágenes y Teledetección-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Señales y Comunicaciones-
crisitem.author.deptIOCAG: Procesado de Imágenes y Teledetección-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Señales y Comunicaciones-
crisitem.author.deptGroup for the Research on Renewable Energy Systems-
crisitem.author.deptDepartamento de Ingeniería Civil-
crisitem.author.orcid0000-0002-9646-1017-
crisitem.author.orcid0000-0002-0010-4024-
crisitem.author.orcid0000-0001-8478-3011-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.fullNameMarcello Ruiz, Francisco Javier-
crisitem.author.fullNameEugenio González, Francisco-
crisitem.author.fullNameLozano Medina, Alexis-
Appears in Collections:Actas de congresos
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