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Thematic Mapper thermal infrared data in discriminating selected urban features / S.M. Leak in International Journal of Remote Sensing IJRS, vol 11 n° 5 (May 1990)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 11 n° 5 (May 1990) . - pp 841 - 857 Titre : Thematic Mapper thermal infrared data in discriminating selected urban features Type de document : Article/Communication Auteurs : S.M. Leak, Auteur ; G. Venugopal, Auteur Année de publication : 1990 Article en page(s) : pp 841 - 857 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse discriminante [Termes IGN] Chicago (Illinois) [Termes IGN] image thermique [Termes IGN] image TM (aérienne) [Termes IGN] milieu urbain [Termes IGN] occupation du sol [Termes IGN] précision de la classification [Termes IGN] rayonnement infrarouge thermique Résumé : (Auteur) This research was conducted to assess the utility of Landsat Thematic Mapper thermal data (10-4 to 12-5um) for urban feature analysis. Seven band thematic mapper data collected on 25 October, 1982 for the Chicago metropolitan area were used to determine the relative importance of the thermal band as a component of an urban land use classification. Analysis consisted of: (1) the use of a transformed divergence measure (separability) to test the interclass spectral variability of selected features for different channel combinations and (2) a comparison of classification results, with and without thermal data using a supervised layered classification algorithm. The use of thermal data resulted in an overall 9-3 per cent increase in classification accuracy. Elimination of classes such as forest, asphalt and railroad resulted in an increase of 12-0 per cent in classification performance. Examination of the separability analysis and classification results indicated there were specific areas of success resulting from the use of thermal data. Increased classification accuracy occurred in several classes such as shadow (+ 36-7 per cent), residential (+ 41-1 per cent), active industry (+ 20-0 per cent) and commercial industrial fringe (+ 77-1 per cent). These results demonstrated that the information content of thermal data was valuable for urban area analysis. Numéro de notice : A1990-091 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431169008955059 En ligne : https://doi.org/10.1080/01431169008955059 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25508 [article]

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