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Landsat urban mapping based on a combined spectral-spatial methodology / B. Guindon in Remote sensing of environment, vol 92 n° 2 (15/08/2004)
[article]
Titre : Landsat urban mapping based on a combined spectral-spatial methodology Type de document : Article/Communication Auteurs : B. Guindon, Auteur ; Y. Zhang, Auteur ; C. Dillabaugh, Auteur Année de publication : 2004 Article en page(s) : pp 218 - 232 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Calgary
[Termes IGN] cartographie urbaine
[Termes IGN] classification
[Termes IGN] données maillées
[Termes IGN] données vectorielles
[Termes IGN] fusion d'images
[Termes IGN] identification automatique
[Termes IGN] image Landsat-TM
[Termes IGN] milieu urbain
[Termes IGN] occupation du sol
[Termes IGN] Ontario (Canada)
[Termes IGN] Ottawa
[Termes IGN] pixel
[Termes IGN] utilisation du solRésumé : (Auteur) Urban mapping using Landsat Thematic Mapper (TM) imagery presents numerous challenges. These include spectral mixing of diverse land cover components within pixels, spectral confusion with other land cover features such as fallow agricultural fields and the fact that urban classes of interest are of the land use and not the land cover category. A new methodology to address these issues is proposed. This approach involves, as a first step, the generation of two independent but rudimentary land cover products, one spectral-based at the pixel level and the other segment-based. These classifications are then merged through a rule-based approach to generate a final product with enhanced land use classes and accuracy. A comprehensive evaluation of derived products of Ottawa, Calgary and cities in southwestern Ontario is presented based on conventional ground reference data as well as inter-classification consistency analyses. Producer accuracies of 78% and 73% have been achieved for urban 'residential' and 'commercial/industrial' classes. respectively. The capability of Landsat TM to detect low density residential areas is assessed based on dwelling and population data derived from aerial photography and the 2001 Canadian census. For low population densities (i.e. below 3000 persons/km2), density is observed to be monotonically related to the fraction of pixels labeled 'residential'. At higher densities, the fraction of pixels labeled 'residential' remains constant due to Landsat's inability to distinguish between high-rise apartment dwellings and commercial/industrial structures. Numéro de notice : A2004-335 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.06.015 En ligne : https://doi.org/10.1016/j.rse.2004.06.015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26862
in Remote sensing of environment > vol 92 n° 2 (15/08/2004) . - pp 218 - 232[article]Nighttime polar cloud detection with MODIS / Y. Liu in Remote sensing of environment, vol 92 n° 2 (15/08/2004)
[article]
Titre : Nighttime polar cloud detection with MODIS Type de document : Article/Communication Auteurs : Y. Liu, Auteur ; J.R. Key, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 181 - 194 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Antarctique
[Termes IGN] Arctique
[Termes IGN] climat froid
[Termes IGN] climat terrestre
[Termes IGN] détection
[Termes IGN] dioxyde de carbone
[Termes IGN] données lidar
[Termes IGN] image Aqua-MODIS
[Termes IGN] image radar
[Termes IGN] image Terra-MODIS
[Termes IGN] luminance lumineuse
[Termes IGN] modèle de transfert radiatif
[Termes IGN] nuage
[Termes IGN] seuillage d'image
[Termes IGN] vapeur d'eauRésumé : (Auteur) Cloud detection is the first step in studying the role of polar clouds in the global climate system with satellite data. In this paper, the cloud detection algorithm for the Moderate Resolution Imaging Spectrometer (MODIS) is evaluated with model simulations and satellite data collocated with radar/lidar observations at three Arctic and Antarctic stations. Results show that the current MODIS cloud mask algorithm performs well in polar regions during the day but does not detect more than 40% of the cloud cover over the validation sights at night. Two new cloud tests utilizing the 7.2 um water vapor and 14.2 um carbon dioxide bands, one new clear-sky test using the 7.2 um band, and changes to the thresholds of several other tests are described. With the new cloud detection procedure, the misidentification of cloud as clear decreases from 44.2% to 16.3% at the two Arctic stations, and from 19.8% to 2.7% at the Antarctic station. Numéro de notice : A2004-333 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.06.004 En ligne : https://doi.org/10.1016/j.rse.2004.06.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26860
in Remote sensing of environment > vol 92 n° 2 (15/08/2004) . - pp 181 - 194[article]Modelling error propagation in vector-based overlay analysis / Wei Shi in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 1-2 (August 2004 - April 2005)
[article]
Titre : Modelling error propagation in vector-based overlay analysis Type de document : Article/Communication Auteurs : Wei Shi, Auteur ; C.K. Cheung, Auteur ; X. Tong-Tong, Auteur Année de publication : 2004 Article en page(s) : pp 47 - 59 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] données vectorielles
[Termes IGN] erreur de positionnement
[Termes IGN] modèle analytique
[Termes IGN] modélisation
[Termes IGN] noeud
[Termes IGN] polygone
[Termes IGN] propagation d'erreurRésumé : (Auteur) This paper proposes two methods for analyzing error propagation in overlay analysis of vector polygons, an analytical and simulation method. First, for the analytical method, the error is derived based on the error propagation law in statistics. In the second method, error propagation of overlay is simulated based on the positional error of the original polygon vertices, assuming a given error distribution of the vertices. For both methods, several geometrical error measures for the derived polygons are defined: (i) error measures for the perimeter, area and center of gravity of a polygon, and (ii) the error intervals for the polygon vertices. A test is performed to compare the differences between the two methods and their applicability. The results indicate that there is no significant difference in estimating the propagated error between the two methods. However, these two methods are suitable for different cases. The analytical method is applicable when the error ellipse of any intersection point of the original polygons does not intersect with error ellipses of all the vertices of the original polygons, if the intersection point or, in case of disjoint polygon boundaries, the error ellipse of any point on the boundary of one original polygon does not intersect with the error ellipse of any point on the boundary of the other original polygons. On the other hand, the simulation method is more generic, but more time consuming. Copyright ISPRS Numéro de notice : A2004-314 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2004.05.003 En ligne : https://doi.org/10.1016/j.isprsjprs.2004.05.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26841
in ISPRS Journal of photogrammetry and remote sensing > vol 59 n° 1-2 (August 2004 - April 2005) . - pp 47 - 59[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-04031 RAB Revue Centre de documentation En réserve L003 Disponible Analysis of simultaneous chlorophyll measurements by lidar fluorosensor, MODIS and SeaWiFS / R. Bardini in International Journal of Remote Sensing IJRS, vol 25 n° 11 (June 2004)
[article]
Titre : Analysis of simultaneous chlorophyll measurements by lidar fluorosensor, MODIS and SeaWiFS Type de document : Article/Communication Auteurs : R. Bardini, Auteur ; F. Colao, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 2095 - 2110 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] chlorophylle
[Termes IGN] données lidar
[Termes IGN] image Aqua-MODIS
[Termes IGN] image Seawifs
[Termes IGN] océan
[Termes IGN] performanceRésumé : (Auteur) The ENEA (Italian Agency for New Technologies, Energy and the Environment) lidar fluorosensor (ELF), aboard the research vessel Italica, measured continuously surface chlorophyll-a concentrations during the Italy-New Zealand and New Zealand-Italy transects (13 November-18 December 2001 and 28 February-1 April 2002, respectively). The ELF measurements were compared with the data collected by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) and the Moderate Resolution Imaging Spectroradiometer (MODIS). This study pointed out advantages, disadvantages and possible synergies of lidar fluorosensor and spaceborne radiometers. In particular, the SeaWiFS and MODIS bio-optical algorithms have been calibrated with the ELF measurements. The differences between the performances of the two spaceborne radiometers are also briefly discussed. Numéro de notice : A2004-228 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160310001618086 En ligne : https://doi.org/10.1080/01431160310001618086 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26755
in International Journal of Remote Sensing IJRS > vol 25 n° 11 (June 2004) . - pp 2095 - 2110[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04091 RAB Revue Centre de documentation En réserve L003 Exclu du prêt 3D laser scanners / M. Bedford in GEO:connexion, vol 3 n° 6 (june 2004)
[article]
Titre : 3D laser scanners Type de document : Article/Communication Auteurs : M. Bedford, Auteur Année de publication : 2004 Article en page(s) : pp 56 - 59 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] balayage laser
[Termes IGN] données laser
[Termes IGN] radiomètre à balayage
[Termes IGN] station de travail de photogrammétrie numérique
[Termes IGN] télémètre laser à balayageRésumé : (documentaliste) Cet article propose une analyse comparative de scanner laser 3D de trois marques différentes. Les spécifications sont tout d'abord comparées : la portée de la visée, du champ de vision, horizontal et vertical, la précision, la vitesse, le poids et le prix. Ensuite, l'échelle de gris et les informations colorées, la saisie des données ainsi que le contrôle adapté sont testées pour chaque instrument. Numéro de notice : A2004-234 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26761
in GEO:connexion > vol 3 n° 6 (june 2004) . - pp 56 - 59[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 062-04061 RAB Revue Centre de documentation En réserve L003 Disponible L'altimétrie par laser scanner aéroporté / B. Bergeon in Géomatique expert, n° 35 (01/06/2004)PermalinkConfrontation du relevé laser 3D aux techniques de relevé conventionnelles et développement d'outils numériques pour la restitution architecturale / A. Fuchs 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)PermalinkModélisation 3D des milieux urbains à partir d'images aériennes stéréoscopiques : approche manuelle vs semi-automatique / Caroline Baillard in Revue Française de Photogrammétrie et de Télédétection, n°173-174 (Juin 2004)PermalinkModelling geographic data with multiple representation / Sandrine Balley in International journal of geographical information science IJGIS, vol 18 n° 4 (june 2004)PermalinkA system for change documentation based on a spatiotemporal database / M.A. Peerbocus in Geoinformatica, vol 8 n° 2 (June - August 2004)PermalinkThe application of short-range 3D laser scanning for archaeological replica production: the Egyptian tomb of Seti 1 / J. Ahmon in Photogrammetric record, vol 19 n° 106 (June - August 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)PermalinkUsing Lidar and effective LAI data to evaluate Ikonos and Landsat 7 ETM+ vegetation cover estimates in a ponderosa pine forest / X. Chen in Remote sensing of environment, vol 91 n° 1 (15/05/2004)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)Permalink