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Potential of using NOAA-AVHRR data for estimating irrigated area to help solve an inter-state water dispute / V.K. Boken in International Journal of Remote Sensing IJRS, vol 25 n° 12 (June 2004)
[article]
Titre : Potential of using NOAA-AVHRR data for estimating irrigated area to help solve an inter-state water dispute Type de document : Article/Communication Auteurs : V.K. Boken, Auteur ; G. Hoogenboom, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 2277 - 2286 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Alabama (Etats-Unis)
[Termes IGN] analyse comparative
[Termes IGN] cultures irriguées
[Termes IGN] Floride (Etats-Unis)
[Termes IGN] Géorgie (Etats-Unis)
[Termes IGN] image NOAA-AVHRR
[Termes IGN] irrigation
[Termes IGN] Normalized Difference Vegetation Index
[Termes IGN] ressources en eau
[Termes IGN] Vegetation Health IndexRésumé : (Auteur) The states of Alabama, Florida and Georgia dispute the apportioning of water from rivers that originate in Georgia and flow through the other two states. Florida and Alabama often claim that Georgia uses more than its fair share of water. In order to address such a dispute, an estimation of the total amount of water used for irrigation by different crops is required. Current estimates of irrigated areas are subject to errors because they are based entirely on survey questionnaires. In this paper, the potential of Advanced Very High Resolution Radiometer (AVHRR) on-board the National Oceanic Space Administration (NOAA) satellites is examined for estimating irrigated area. Two indices, a widely used Normalized Difference Vegetation Index (NDVI) and a newer Vegetation Health Index (VHI), were regressed against irrigated area for 1986, 1989, 1992, 1995 and 2000 for selected regions in Georgia (Baker and Mitchell counties, and Seminole and Decatur counties). The average VHI during a period from the third week of February to the end of September was better related to irrigated area than the corresponding NDVI; R2 was above 0.80 as opposed to 0.49. It is concluded that the VHI, derived from three-channel AVHRR data, can be used to estimate irrigated area. By multiplying irrigated area with the application rate, the volume of irrigation used in a state can be determined, which can contribute to the solution of the water dispute. Numéro de notice : A2004-220 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160310001618077 En ligne : https://doi.org/10.1080/01431160310001618077 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26747
in International Journal of Remote Sensing IJRS > vol 25 n° 12 (June 2004) . - pp 2277 - 2286[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 080-04101 RAB Revue Centre de documentation En réserve L003 Disponible Analysis of four change detection algorithms in bi-temporal space with a case study / Y. Liu in International Journal of Remote Sensing IJRS, vol 25 n° 11 (June 2004)
[article]
Titre : Analysis of four change detection algorithms in bi-temporal space with a case study Type de document : Article/Communication Auteurs : Y. Liu, Auteur ; S. Nishiyama, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 2121 - 2139 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse comparative
[Termes IGN] analyse en composantes principales
[Termes IGN] détection de changement
[Termes IGN] régressionRésumé : (Auteur) Although change detection algorithms for temporal remote sensing images have been compared using various datasets, there is no general agreement on their performance for separating change and no-change. This study compared image differencing, image ratioing, image regression, and principal component analysis (PCA) from a mathematical perspective. Error analysis showed that no-change pixels with errors are expected to be located within an error zone in bitemporal space. Bi-temporal space consists of two temporal axes of target pixel values observed successively. All algorithms confine a no-change area to a zone delineating change and no-change pixels in the space. Image ratioing defines a fan-like sector as a no-change area, generally unsuitable for change detection. The other algorithms confine a no-change area to a strip-like zone. Image differencing defines a no-change zone with a fixed slope, leading to its inability to specify flexibly the error zone that varies with different conditions. In the examined case, image regression and standardized PCA (SPCA) achieved the best performance for change detection, followed by PCA, image differencing, and image ratioing. Numéro de notice : A2004-229 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160310001606647 En ligne : https://doi.org/10.1080/01431160310001606647 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26756
in International Journal of Remote Sensing IJRS > vol 25 n° 11 (June 2004) . - pp 2121 - 2139[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04091 RAB Revue Centre de documentation En réserve L003 Exclu du prêt 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 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)
[article]
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 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'apport des textes de Strabon dans l'analyse environnementale et historique des sites de la vallée de l'Oronte / M. Abdulkarim in Photo interprétation, vol 40 n° 2 - 3 (Juin 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)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)PermalinkMisleading information from direct interpretation of geometrically incorrect aerial photographs / Duccio Rocchini in Photogrammetric record, vol 19 n° 106 (June - August 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)PermalinkPerformance analysis of the real-time Canada-wide DGPS service (CDGPS) / M.E. Cannon in Geomatica, vol 58 n° 2 (June 2004)PermalinkProtection of geoprivacy and accuracy of spatial information: how effective are geographical masks ? / Mei-Po Kwan in Cartographica, vol 39 n° 2 (June 2004)PermalinkUse of a digital terrain model as a means of urban watershed delineation in Fredericton, New Brunswick / Wade MacNutt in Geomatica, vol 58 n° 2 (June 2004)Permalink