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Examining the effect of spatial resolution and texture window size on classification accuracy: an urban environment case / D. Chen in International Journal of Remote Sensing IJRS, vol 25 n° 11 (June 2004)
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Titre : Examining the effect of spatial resolution and texture window size on classification accuracy: an urban environment case Type de document : Article/Communication Auteurs : D. Chen, Auteur ; D.A. Stow, Auteur ; P. Gong, Auteur Année de publication : 2004 Article en page(s) : pp 2177 - 2092 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] analyse comparative
[Termes IGN] classification par maximum de vraisemblance
[Termes IGN] image multibande
[Termes IGN] limite de résolution géométrique
[Termes IGN] limite de résolution spectrale
[Termes IGN] milieu urbain
[Termes IGN] occupation du sol
[Termes IGN] périphérie urbaine
[Termes IGN] précision de la classification
[Termes IGN] San Diego
[Termes IGN] texture d'imageRésumé : (Auteur) The purpose of this paper is to evaluate spatial resolution effects on image classification. Classification maps were generated with a maximum likelihood (ML) classifier applied to three multi-spectral bands and variance texture images. A total of eight urban land use/cover classes were obtained at six spatial resolution levels based on a series of aggregated Colour Infrared Digital Orthophoto Quarter Quadrangle (DOQQ) subsets in urban and rural fringe areas of the San Diego metropolitan area. The classification results were compared using overall and individual classification accuracies. Classification accuracies were shown to be influenced by image spatial resolution, window size used in texture extraction and differences in spatial structure within and between categories. The more heterogeneous arc the land use/cover units and the more fragmented are the landscapes, the finer the resolution required. Texture was more effective for improving the classification accuracy of land use classes at finer resolution levels. For spectrally homogeneous classes, a small window is preferable. But for spectrally heterogeneous classes, a large window size is required. Numéro de notice : A2004-230 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160310001618464 En ligne : https://doi.org/10.1080/01431160310001618464 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26757
in International Journal of Remote Sensing IJRS > vol 25 n° 11 (June 2004) . - pp 2177 - 2092[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04091 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Probabilistic landslide hazard mapping using GIS and remote sensing data at Boun, Korea / S. Lee in International Journal of Remote Sensing IJRS, vol 25 n° 11 (June 2004)
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Titre : Probabilistic landslide hazard mapping using GIS and remote sensing data at Boun, Korea Type de document : Article/Communication Auteurs : S. Lee, Auteur ; J. Choi, Auteur ; K. Min, Auteur Année de publication : 2004 Article en page(s) : pp 2037 - 2052 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] base de données localisées
[Termes IGN] cartographie des risques
[Termes IGN] classification dirigée
[Termes IGN] Corée
[Termes IGN] données de terrain
[Termes IGN] effondrement de terrain
[Termes IGN] image IRS
[Termes IGN] linéament
[Termes IGN] lithologie
[Termes IGN] occupation du sol
[Termes IGN] photo-interprétation assistée par ordinateur
[Termes IGN] photographie aérienne
[Termes IGN] risque naturel
[Termes IGN] système d'information géographique
[Termes IGN] zone à risqueRésumé : (Auteur) The aim of this study is to evaluate the hazard of landslides at Boun, Korea, using a Geographic Information System (GIS) and remote sensing. Landslide locations were identified in the Boun area from interpretation of aerial photographs and field surveys. The topographic, soil, forest, geologic, lineament and land cover data were collected, processed and constructed into a spatial database using GIS and remote sensing data. The factors that influence landslide occurrence, such as slope, aspect and curvature of the topography, were calculated from the topographic database. Texture, material, drainage and effective soil thickness were extracted from the soil database, and type, age, diameter and density of timber were extracted from the forest database. The lithology was extracted from the geological database and lineaments were detected from Indian Remote Sensing (IRS) satellite images. The land cover was classified based on the Landsat Thematic Mapper (TM) satellite image. Landslide hazard areas were analysed and mapped, using the landslide-occurrence factors, by the probability-likelihood ratio method. The results of the analysis were verified using actual landslide location data. The validation results showed satisfactory agreement between the hazard map and the existing data on landslide locations. Numéro de notice : A2004-226 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160310001618734 En ligne : https://doi.org/10.1080/01431160310001618734 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26753
in International Journal of Remote Sensing IJRS > vol 25 n° 11 (June 2004) . - pp 2037 - 2052[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04091 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Accuracy assessment of Quickbird stereo imagery / M. Noguchi in Photogrammetric record, vol 19 n° 106 (June - August 2004)
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Titre : Accuracy assessment of Quickbird stereo imagery Type de document : Article/Communication Auteurs : M. Noguchi, Auteur ; Clive Simpson Fraser, Auteur Année de publication : 2004 Article en page(s) : pp 128 - 137 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] compensation par faisceaux
[Termes IGN] erreur systématique
[Termes IGN] Geographical Survey Institute
[Termes IGN] géoréférencement
[Termes IGN] image à très haute résolution
[Termes IGN] image Quickbird
[Termes IGN] modèle par fonctions rationnelles
[Termes IGN] orientation du capteur
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] précision métriqueRésumé : (Auteur) L'Institut Géographique japonais a effectué récemment une évaluation des qualités métriques de l'imagerie stéréoscopique du satellite QuickBird. On présente dans cet article, une estimation de la précision à l'issue des phases relatives au géopositionnement et à l'orientation du capteur. Le but de cette étude était double. Il s'agissait d'abord de confirmer les possibilités d'utilisation de l'imagerie de QuickBird pour la cartographie topographique à l'échelle du 1:25.000. Ensuite, il fallait déterminer la précision que l'on pouvait atteindre avec le produit image BASIC. On a recouru aux techniques de compensation affine par faisceaux et aux fonctions rationnelles, ces dernières ayant inclus une compensation des biais. Les résultats obtenus montrent à nouveau la haute précision permise par les fonctions rationnelles mais jettent un doute sur la possibilité d'application du modèle affine 3D pour obtenir un géopositionnement précis à partir de l'imagerie de QuickBird. Numéro de notice : A2004-217 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2004.00035.x En ligne : https://doi.org/10.1111/j.1477-9730.2004.00035.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26744
in Photogrammetric record > vol 19 n° 106 (June - August 2004) . - pp 128 - 137[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-04021 RAB Revue Centre de documentation En réserve L003 Disponible An advanced system for the automatic classification of multitemporal SAR images / Lorenzo Bruzzone in IEEE Transactions on geoscience and remote sensing, vol 42 n° 6 (June 2004)
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Titre : An advanced system for the automatic classification of multitemporal SAR images Type de document : Article/Communication Auteurs : Lorenzo Bruzzone, Auteur ; Mattia Marconcini, Auteur ; et al., Auteur Année de publication : 2004 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] classification automatique
[Termes IGN] classification par réseau neuronal
[Termes IGN] coefficient de rétrodiffusion
[Termes IGN] extraction automatique
[Termes IGN] image ERS-SAR
[Termes IGN] image multitemporelle
[Termes IGN] reconnaissance de formesRésumé : (Auteur) A novel system for the classification of multitemporal synthetic aperture radar (SAR) images is presented. It has been developed by integrating an analysis of the multitemporal SAR signal physics with a pattern recognition approach. The system is made up of a feature-extraction module and a neural-network classifier, as well as a set of standard preprocessing procedures. The feature-extraction module derives a set of features from a series of multitemporal SAR images. These features are based on the concepts of long-term coherence and backscattering temporal variability and have been defined according to an analysis of the multitemporal SAR signal behavior in the presence of different land-cover classes. The neural-network classifier (which is based on a radial basis function neural architecture) properly exploits the multitemporal features for producing accurate land-cover maps. Thanks to the effectiveness of the extracted features, the number of measures that can be provided as input to the classifier is significantly smaller than the number of available multitemporal images. This reduces the complexity of the neural architecture (and consequently increases the generalization capabilities of the classifier) and relaxes the requirements relating to the number of training patterns to be used for classifier learning. Experimental results (obtained on a multitemporal series of European Remote Sensing 1 satellite SAR images) confirm the effectiveness of the proposed system, which exhibits both high classification accuracy and good stability versus parameter settings. These results also point out that properly integrating a pattern recognition procedure (based on machine learning) with an accurate feature extraction phase (based on the SAR sensor physics understanding) represents an effective approach to SAR data analysis. Numéro de notice : A2004-264 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.826821 En ligne : https://doi.org/10.1109/TGRS.2004.826821 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26791
in IEEE Transactions on geoscience and remote sensing > vol 42 n° 6 (June 2004)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-04061 RAB Revue Centre de documentation En réserve L003 Disponible Belief change and pre-orders: a brief overview / Salem Benferhat in International journal of geographical information science IJGIS, vol 18 n° 4 (june 2004)
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Titre : Belief change and pre-orders: a brief overview Type de document : Article/Communication Auteurs : Salem Benferhat, Auteur ; S. Lagrue, Auteur ; Odile Papini, Auteur Année de publication : 2004 Article en page(s) : pp 353 - 388 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] fusion de données
[Termes IGN] imprécision des données
[Termes IGN] incertitude des données
[Termes IGN] mise à jour de base de données
[Termes IGN] révision des données
[Termes IGN] théorie de Dempster-ShaferRésumé : (Auteur) This paper deals with iterated belief change. Epistemic states are suitable to represent an intelligent agent's knowledge. Most of the time, when dealing with geographic information, the agent faces incomplete, uncertain, or inaccurate information and needs a mechanism for either revision, update, or fusion to handle their change in beliefs in the presence of new items of information. After some preliminaries on the representation of epistemic states by means of pre-orders, the paper presents three approaches to belief change: revision, update, and fusion. For each of these approaches, the background, postulates, representation by pre-orders, and semantic and syntactic requirements are given. In each case, the approaches are illustrated by examples. Numéro de notice : A2004-208 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810410001672890 En ligne : https://doi.org/10.1080/13658810410001672890 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26735
in International journal of geographical information science IJGIS > vol 18 n° 4 (june 2004) . - pp 353 - 388[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-04041 RAB Revue Centre de documentation En réserve L003 Disponible 079-04042 RAB Revue Centre de documentation En réserve L003 Disponible Cartographie de la densité du bâti par analyse granulométrique des images de télédetection / Franck Chopin in Revue Française de Photogrammétrie et de Télédétection, n°173-174 (Juin 2004)
PermalinkDTM generation from Ikonos in-track stereo images using a 3D physical model / Thierry Toutin in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 6 (June 2004)
PermalinkEstimation of subpixel target size for remotely sensed imagery / C.I. Chang in IEEE Transactions on geoscience and remote sensing, vol 42 n° 6 (June 2004)
PermalinkEstimation of the positional uncertainty in line simplification in GIS / C.K. Cheung in Cartographic journal (the), vol 41 n° 1 (June 2004)
PermalinkEtude des caractéristiques projectives des objets spatiaux et de leurs relations / Roland Billen in Revue internationale de géomatique, vol 14 n° 2 (juin - aout 2004)
PermalinkÉtude de l'extension du bâti sur le littoral sénégalais à partir des paramètres texturaux de Haralick / G. Ackermann in Revue Française de Photogrammétrie et de Télédétection, n°173-174 (Juin 2004)
PermalinkFusion on multispectral and panchromatic images using improved IHS and PCA mergers based on wavelet decomposition / M. Gonzalez-Audicana in IEEE Transactions on geoscience and remote sensing, vol 42 n° 6 (June 2004)
PermalinkMapping coastal vegetation using an expert system and hyperspectral imagery / K.S. Schmidt in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 6 (June 2004)
PermalinkOntologies des configurations : un opérateur de proximité intégrant l'influence de l'environnement spatial / Rodéric Bera in Revue internationale de géomatique, vol 14 n° 2 (juin - aout 2004)
PermalinkOptimising the accuracy of a low-cost photogrammetric motion study system / A.K. Chong in Photogrammetric record, vol 19 n° 106 (June - August 2004)
PermalinkPredicting forest age classes from high spatial resolution remotely sensed imagery using Voronoi polygon aggregation / T. Nelson in Geoinformatica, vol 8 n° 2 (June - August 2004)
PermalinkLes principes de la représentation cartographique de données géographiques : une approche ontologique et sémiologique / Hy Dao in Revue internationale de géomatique, vol 14 n° 2 (juin - aout 2004)
PermalinkRecovering enhanced resolution images and digital elevation models from compressed image sequences / G. Scarmana in Photogrammetric record, vol 19 n° 106 (June - August 2004)
PermalinkRedefining the paradigm of modern mobile mapping: an automated high-precision road centerline mapping system / Charles K. Toth in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 6 (June 2004)
PermalinkA structural approach to the model generalization of an urban street network / Bin Jiang in Geoinformatica, vol 8 n° 2 (June - August 2004)
PermalinkTélédétection et géo-archéologie : Comparaison des potentialités naturelles d'accueil des gebels Siman et Zawiye, vis-à-vis des sites antiques romano-byzantins de Syrie du nord / M. Abdulkarim in Photo interprétation, vol 40 n° 2 - 3 (Juin 2004)
PermalinkPermalinkLeaf Area Index measurements in a tropical moist forest: a case study from Costa Rica / M. Kalacska in Remote sensing of environment, vol 91 n° 2 (30/05/2004)
PermalinkSub-pixel mapping and sub-pixel sharpening using neural network predicted wavelet coefficients / K.C. Mertens in Remote sensing of environment, vol 91 n° 2 (30/05/2004)
PermalinkWavelet transform applied to EO-1 hyperspectral data for forest LAI and crown closure mapping / R. Pu in Remote sensing of environment, vol 91 n° 2 (30/05/2004)
PermalinkScaling net primary production to a MODIS footprint in support of Earth observing system product validation / D. Turner in International Journal of Remote Sensing IJRS, vol 25 n° 10 (May 2004)
PermalinkAssessing the effects of human-induced land degradation in the former homelands of northern South Africa with a 1 km AVHRR NDVI time-series / K.J. Wessels in Remote sensing of environment, vol 91 n° 1 (15/05/2004)
PermalinkSmall-footprint lidar estimation of sub-canopy elevation and tree height in a tropical rain forest landscape / M.L. Clarke in Remote sensing of environment, vol 91 n° 1 (15/05/2004)
PermalinkAn integrated approach for landslide susceptibility mapping using remote sensing and GIS / S. Sarkar in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 5 (May 2004)
PermalinkA global kinetic spatial data structure for a marine simulation / Mir Abolfazl Mostafavi in International journal of geographical information science IJGIS, vol 18 n° 3 (april - may 2004)
PermalinkNonparametric weighted feature extraction for classification / D.A. Landgrebe in IEEE Transactions on geoscience and remote sensing, vol 42 n° 5 (May 2004)
PermalinkSeeing the trees in the forest: Using Lidar and multispectral data fusion with local filtering and variable window size for estimating tree height / S.C. Pospecu in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 5 (May 2004)
PermalinkThe scale matcher: a procedure for assessing scale compatibility of spatial data and models / L.R. Lilburne in International journal of geographical information science IJGIS, vol 18 n° 3 (april - may 2004)
PermalinkThematic map comparison: evaluating the statistical significance of differences in classification accuracy / Giles M. Foody in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 5 (May 2004)
PermalinkUnifying regularization and Bayesian estimation methods for enhanced imaging with remotely sensed data - part 1: theory / Y.V. Shkvarko in IEEE Transactions on geoscience and remote sensing, vol 42 n° 5 (May 2004)
PermalinkUnifying regularization and Bayesian estimation methods for enhanced imaging with remotely sensed data - part 2: implementation and performance issues / Y.V. Shkvarko in IEEE Transactions on geoscience and remote sensing, vol 42 n° 5 (May 2004)
PermalinkLand cover characterization of temperate east Asia using multi-temporal vegetation sensor data / S.H. Boles in Remote sensing of environment, vol 90 n° 4 (30/04/2004)
PermalinkA sea surface fractal model for ocean remote sensing / F. Berizzi in International Journal of Remote Sensing IJRS, vol 25 n° 7 (April 2004)
PermalinkClassification of remotely sensed imagery stochastic gradient boosting as a refinement of classification tree analysis / R. Lawrence in Remote sensing of environment, vol 90 n° 3 (15/04/2004)
PermalinkClassifying land development in high-resolution panchromatic satellite images using straight-line statistics / C. Unsalan in IEEE Transactions on geoscience and remote sensing, vol 42 n° 4 (April 2004)
PermalinkToward a differential calculus for temporal map analysis / Denis J. Dean in Cartography and Geographic Information Science, vol 31 n° 2 (April 2004)
PermalinkValidation and calibration of Canada-wide coarse-resolution satellite burned-area maps / R.H. Fraser in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 4 (April 2004)
PermalinkMapping residential density patterns using multi- temporal Landsat data and decision-tree classifier / S. Mccauley in International Journal of Remote Sensing IJRS, vol 25 n° 6 (March 2004)
PermalinkSmoothing vegetation spectra with wavelets / K.S. Schmidt in International Journal of Remote Sensing IJRS, vol 25 n° 6 (March 2004)
PermalinkTree model based eco-climatic vegetation classification and fuzzy mapping in diverse tropical deciduous ecosystems using multi-season NDVI / J. Krishnaswamy in International Journal of Remote Sensing IJRS, vol 25 n° 6 (March 2004)
PermalinkHyperion, Ikonos, ALI, and ETM+ sensors in the study of African rainforests / Prasad S. Thenkabail in Remote sensing of environment, vol 90 n° 1 (15/03/2004)
PermalinkIntegrating imaging spectroscopy and neural networks to map grass quality in the Kruger National Park, South Africa / Onisimo Mutanga in Remote sensing of environment, vol 90 n° 1 (15/03/2004)
PermalinkAccuracy analysis of remote sensing change detection by rule-based rationality evaluation with post-classification comparison / H. Liu in International Journal of Remote Sensing IJRS, vol 25 n° 5 (March 2004)
PermalinkG-WMAP: a statistical speckle filter operating in the wavelet domain / S. Solbo in International Journal of Remote Sensing IJRS, vol 25 n° 5 (March 2004)
PermalinkUsing Landsat 7 TM data acquired days after a flood event to delineate the maximum flood extent on a coastal floodplain / Y. Wang in International Journal of Remote Sensing IJRS, vol 25 n° 5 (March 2004)
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