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A global analysis urban reflectance / C. Small in International Journal of Remote Sensing IJRS, vol 26 n° 4 (February 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 4 (February 2005) . - pp 661 - 681 Titre : A global analysis urban reflectance Type de document : Article/Communication Auteurs : C. Small, Auteur Année de publication : 2005 Article en page(s) : pp 661 - 681 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] albedo [Termes IGN] analyse des mélanges spectraux [Termes IGN] hétérogénéité sémantique [Termes IGN] image Landsat-ETM+ [Termes IGN] réflectance urbaine Numéro de notice : A2005-051 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160310001654950 En ligne : https://doi.org/10.1080/01431160310001654950 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27189 [article]

Exemplaires(1)

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080-05041	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

A novel method for generating 3D city models from high resolution and multi-sensor remote sensing data / Jochen Schiewe in International Journal of Remote Sensing IJRS, vol 26 n° 4 (February 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 4 (February 2005) . - pp 683 - 698 Titre : A novel method for generating 3D city models from high resolution and multi-sensor remote sensing data Type de document : Article/Communication Auteurs : Jochen Schiewe, Auteur ; Manfred Ehlers, Auteur Année de publication : 2005 Article en page(s) : pp 683 - 698 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] analyse comparative [Termes IGN] caméra numérique [Termes IGN] classification [Termes IGN] classification dirigée [Termes IGN] image à haute résolution [Termes IGN] image aérienne [Termes IGN] image multicapteur [Termes IGN] modèle 3D de l'espace urbain Résumé : (Auteur) Modelling urban objects and phenomena puts extremely high demands on the acquisition and analysis of the necessary data. In this context, digital airborne camera systems offer very high spatial resolutions and the simultaneous acquisition of elevation data-either through stereo-matching or by laser scanning. However, with these data the user community faces new problems in their analysis. In response, region-based classification approaches have been developed, but these are not yet fully automatic, reliable and transferable. Hence, this paper proposes a novel hybrid and multi-scale methodology which performs a classification on all segmented levels (called 'Classification on multiple Segment levels', ComS). First investigations validate the applicability as well as the accuracy of the proposed methodology compared with conventional approaches, such as a supervised, pixel-based maximum likelihood classification. Numéro de notice : A2005-052 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160512331316829 En ligne : https://doi.org/10.1080/01431160512331316829 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27190 [article]

Exemplaires(1)

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080-05041	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

The utility of texture analysis to improve per-pixel classification for high to very high spatial resolution imagery / Anne Puissant in International Journal of Remote Sensing IJRS, vol 26 n° 4 (February 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 4 (February 2005) . - pp 733 - 745 Titre : The utility of texture analysis to improve per-pixel classification for high to very high spatial resolution imagery Type de document : Article/Communication Auteurs : Anne Puissant, Auteur ; Jacky Hirsch, Auteur ; Christiane Weber, Auteur Année de publication : 2005 Article en page(s) : pp 733 - 745 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] analyse texturale [Termes IGN] classification automatique [Termes IGN] extraction automatique [Termes IGN] image à haute résolution [Termes IGN] image à très haute résolution [Termes IGN] milieu urbain [Termes IGN] précision de la classification [Termes IGN] précision géométrique (imagerie) Résumé : (Auteur) Earth observation data are becoming available at increasingly finer resolutions. Sensors already in existence (IKONOS, Quickbird, SPOT 5, Orbview) or due to be launched in the near future will reach 1-5 m resolution. These very high resolution (VHR) data will provide more details of the urban areas, but it seems evident that they will create additional problems in terms of information extraction using automatic classification. In this framework, this paper examines the potential of the spectral/textural approach to improve the classification accuracy of intra-urban land cover types. The utility of the textural analysis was measured in comparison with multi-spectral per-pixel classifications. Haralick's second-order statistics were applied to the co-occurrence matrix. Four texture indices with six window sizes created from panchromatic images were tested on images at high to very high resolutions (10-1 m). The results show that the optimal index improving the global classification accuracy is the homogeneity measure, with a 7 x 7 window size. Moreover, for 1 m images, texture measure of homogeneity allows one to decrease the shadows. Numéro de notice : A2005-053 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160512331316838 En ligne : https://doi.org/10.1080/01431160512331316838 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27191 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05041	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

GIS and remote sensing as tools for the simulation of urban land-use change / C.M. Almeida in International Journal of Remote Sensing IJRS, vol 26 n° 4 (February 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 4 (February 2005) . - pp 759 - 774 Titre : GIS and remote sensing as tools for the simulation of urban land-use change Type de document : Article/Communication Auteurs : C.M. Almeida, Auteur ; A.M. Vieira Monteiro, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 759 - 774 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] automate cellulaire [Termes IGN] changement d'occupation du sol [Termes IGN] croissance urbaine [Termes IGN] estimation bayesienne [Termes IGN] maille carrée [Termes IGN] milieu urbain [Termes IGN] modèle de simulation [Termes IGN] modèle stochastique [Termes IGN] Sao Paulo [Termes IGN] système d'information géographique [Termes IGN] utilisation du sol Résumé : (Auteur) This paper is concerned with building up methodological guidelines for modelling urban land-use change through Geographical Information Systems, remote sensing imagery and Bayesian probabilistic methods. A medium-sized town in the west of Sào Paulo State, Bauru, was adopted as a case study. Its urban structure was converted into a 100m x 100m resolution grid and transition probabilities were calculated for each grid cell by means of the 'weights of evidence' statistical method and upon the basis of the information related to the technical infrastructure and socio-economic aspects of the town. The probabilities obtained from there fed a cellular automaton simulation model-DINAMICA-developed by the Centre for Remote Sensing of the Federal University of Minas Gerals (CSR-UFNIG), based on stochastic transition algorithms. Different simulation outputs for the case study town in the period 1979-1988 were generated, and statistical validation tests were then conducted for the best results, employing a multiple resolution fitting procedure. This modelling experiment revealed the plausibility of adopting Bavesian empirical methods based on the available knowledge of technical infrastructure and socio-economic status to simulate urban land-use change. It indicates their possible further applicability for generating forecasts of growth trends both for Brazilian cities and cities world-wide. Numéro de notice : A2005-054 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160512331316865 En ligne : https://doi.org/10.1080/01431160512331316865 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27192 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05041	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

Urban development in the Athens metropolitan area using remote sensing data with supervised analysis and GIS / Christiane Weber in International Journal of Remote Sensing IJRS, vol 26 n° 4 (February 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 4 (February 2005) . - pp 785 - 796 Titre : Urban development in the Athens metropolitan area using remote sensing data with supervised analysis and GIS Type de document : Article/Communication Auteurs : Christiane Weber, Auteur ; C. Petropoulou, Auteur ; Jacky Hirsch, Auteur Année de publication : 2005 Article en page(s) : pp 785 - 796 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] Athènes [Termes IGN] classification dirigée [Termes IGN] croissance urbaine [Termes IGN] image multibande [Termes IGN] image satellite [Termes IGN] luminance lumineuse [Termes IGN] Normalized Difference Vegetation Index [Termes IGN] paysage urbain [Termes IGN] système d'information géographique Résumé : (Auteur) In this study, a set of multi-spectral images were used to locate and identify the irregular settlements zones in the Athens metropolitan area. To achieve this goal, indexes-Brightness Index and Normalized Difference Vegetation Index-and supervised classification are computed and applied to the images. In order to locate and identify these regions, common biophysical characteristics related to the urban and suburban landscape structures were identified. Five types of biophysical class were distinguished: (1) inner dense city with high buildings and absence of vegetation; (2) suburban areas with recent construction of buildings and absence of vegetation ; (3) green suburban areas; (4) high-density vegetation zones; and (5) recent forest fire regions. Some limitations are presented and discussed due to confusion of land-cover types between bare land and recent constructed areas, or between various types of vegetation and some urban green zones. Results are integrated within a Geographical Information System (GIS), allowing the user to check the legaI situation of the classified areas using the Urban Plan of Athens (1983-1995) documentation. This facilitates a proposal and representation of topology of irregular settlements. Such techniques might be very fruitful for developing countries or recently industrialized ones to identify speciflic irregular settlements. Numéro de notice : A2005-055 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160512331316856 En ligne : https://doi.org/10.1080/01431160512331316856 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27193 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05041	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

Automatic detection of earthquake-damaged buildings using DEMs created from pre- and post-earthquake stereo aerial photographs / M. Turker in International Journal of Remote Sensing IJRS, vol 26 n° 4 (February 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 4 (February 2005) . - pp 823 - 832 Titre : Automatic detection of earthquake-damaged buildings using DEMs created from pre- and post-earthquake stereo aerial photographs Type de document : Article/Communication Auteurs : M. Turker, Auteur ; B. Cetinkaya, Auteur Année de publication : 2005 Article en page(s) : pp 823 - 832 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] analyse diachronique [Termes IGN] bati [Termes IGN] couple stéréoscopique [Termes IGN] détection automatique [Termes IGN] dommage matériel [Termes IGN] hauteur du bâti [Termes IGN] image numérisée [Termes IGN] modèle numérique de terrain [Termes IGN] photographie aérienne [Termes IGN] séisme [Termes IGN] seuillage d'image [Termes IGN] Turquie Résumé : (Auteur) This study presents detection of the collapsed buildings caused by earthquakes using digital elevation models (DEMs) created from pre- and post-earthquake stereo aerial photographs. It is based on the idea that changes in the heights of collapsed buildings can be detected. The study was conducted using aerial photographs taken before (1994) and after (1999) the Izmit earthquake in Turkey. DEMs were created automatically from both pre- and post-earthquake aerial photographs at 5m spatial resolution. The DEMs created from the two epochs were then differenced and the difference DEM obtained was analysed building by building to detect those buildings whose height difference between pre- and post-earthquake exceeded a specified threshold level. The producer's accuracy for detecting the collapsed buildings was found to be 84%. The results show that the difference DEM of the pre- and post-earthquake aerial images can reveal successfully the collapsed buildings caused by the earthquake. It was found that determining an optimum threshold level between change and no change pixels of the difference DEM is important. Numéro de notice : A2005-056 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160512331316810 En ligne : https://doi.org/10.1080/01431160512331316810 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27194 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05041	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt