Descripteur
Termes IGN > télédétection > télédétection électromagnétique > thermographie > image thermique
image thermiqueSynonyme(s)Image infrarouge thermique enregistrement thermographiqueVoir aussi |
Documents disponibles dans cette catégorie (138)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Early fire detection using non-linear multi-temporal prediction of thermal imagery / A. Koltunov in Remote sensing of environment, vol 110 n° 1 (14/09/2007)
[article]
Titre : Early fire detection using non-linear multi-temporal prediction of thermal imagery Type de document : Article/Communication Auteurs : A. Koltunov, Auteur ; S.L. Ustin, Auteur Année de publication : 2007 Article en page(s) : pp 18 - 28 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse diachronique
[Termes IGN] anomalie thermique
[Termes IGN] détection de changement
[Termes IGN] image multitemporelle
[Termes IGN] image Terra-MODIS
[Termes IGN] image thermique
[Termes IGN] incendie de forêt
[Termes IGN] prévention des risquesRésumé : (Auteur) This paper presents a sub-pixel thermal anomaly detection method based on predicting background pixel intensities using a non-linear function of a plurality of past images of the inspected scene. At present, the multitemporal approach to thermal anomaly detection is in its early development stage. In case of space-borne surveillance the multitemporal detection is complicated by both spatial and temporal variability of background surface properties, weather influences, viewing geometries, sensor noise, residual misregistration, and other factors. We use the problem of fire detection and the MODIS data to demonstrate that advanced multitemporal detection methods can potentially outperform the operationally used optimized contextual algorithms both under morning and evening conditions. Copyright Elsevier Numéro de notice : A2007-348 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2007.02.010 En ligne : https://doi.org/10.1016/j.rse.2007.02.010 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28711
in Remote sensing of environment > vol 110 n° 1 (14/09/2007) . - pp 18 - 28[article]Spectral reflectance and emissivity features of broad leaf plants: prospects for remote sensing in the thermal infrared (8.0-14.0 um) / B. Ribeiro Da Luz in Remote sensing of environment, vol 109 n° 4 (30 August 2007)
[article]
Titre : Spectral reflectance and emissivity features of broad leaf plants: prospects for remote sensing in the thermal infrared (8.0-14.0 um) Type de document : Article/Communication Auteurs : B. Ribeiro Da Luz, Auteur ; J.K. Crowley, Auteur Année de publication : 2007 Article en page(s) : pp 393 - 405 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] emissivité
[Termes IGN] exitance spectrale
[Termes IGN] feuille (végétation)
[Termes IGN] identification automatique
[Termes IGN] image thermique
[Termes IGN] rapport signal sur bruit
[Termes IGN] rayonnement infrarouge thermique
[Termes IGN] réflectance spectrale
[Termes IGN] végétationRésumé : (Auteur) Field emissivity measurements were made of leaves collected from nine deciduous tree and agricultural plant species. The data show, for the first time, that it is possible to discriminate subtle spectral emissivity features of leaves from the natural background emission. Under conditions of controlled measurement geometry (leaves arranged to cover a flat surface), the field emissivity spectra agreed fairly well with emissivity values calculated from laboratory directional hemispherical reflectance measurements. Spectral features associated with a variety of leaf chemical constituents, including cellulose, cutin, xylan, silica, and oleanolic acid could be identified in the field emissivity data. Structural aspects of leaf surfaces also influenced spectral behavior, notably the abundance of trichomes, as well as wax thickness and texture. Field spectral measurements made at increasing distances from natural plant canopies showed progressive attenuation of the spectral emissivity features. This attenuation is ascribed to increased multiple scattering that superimposes an opposite-in-sign reflected component on the emittance, and to the increasing number of canopy voids within the instrument field of view. Errors associated with the removal of atmospheric features and with the non-isotropic thermal characteristics of canopies also contribute to the loss of spectral information at greater measurement distances. In contrast to visible and short-wave infrared data, thermal infrared spectra of broad leaf plants show considerable spectral diversity, suggesting that such data eventually could be utilized to map vegetation composition. However, remotely measuring the subtle emissivity features of leaves still presents major challenges. To be successful, sensors operating in the 8–14 um atmospheric window must have high signal-to-noise and a small enough instantaneous field of view to allow measurements of only a few leaf surfaces. Methods for atmospheric compensation, temperature–emissivity separation, and spectral feature analysis also will need to be refined to allow the recognition, and perhaps, exploitation of leaf thermal infrared spectral properties. Copyright Elsevier Numéro de notice : A2007-318 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2007.01.008 En ligne : https://doi.org/10.1016/j.rse.2007.01.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28681
in Remote sensing of environment > vol 109 n° 4 (30 August 2007) . - pp 393 - 405[article]Détection de feux de forêt par analyse statistique d'évènements rares à partir d'images infrarouges thermiques / Florent Lafarge in Traitement du signal, vol 24 n° 1 ([01/02/2007])
[article]
Titre : Détection de feux de forêt par analyse statistique d'évènements rares à partir d'images infrarouges thermiques Titre original : Forest fire detection by statistical analysis of rare events from thermical infrared images Type de document : Article/Communication Auteurs : Florent Lafarge, Auteur ; Xavier Descombes, Auteur ; Josiane Zerubia, Auteur ; S. Mathieu-Marni, Auteur Année de publication : 2007 Conférence : GRETSI 2005, 20e Colloque sur le traitement du signal et des images 06/09/2005 09/09/2005 Louvain Belgique OA proceedings Article en page(s) : pp 1 - 12 Note générale : bibliographie Langues : Français (fre) Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] champ aléatoire conditionnel
[Termes IGN] image satellite
[Termes IGN] image thermique
[Termes IGN] incendie de forêtRésumé : (auteur) Le canal IRT (InfraRouge Thermique) contient des longueurs d'onde particulièrement sensibles à l'émission de chaleur. Les feux de forêt peuvent alors être caractérisés par des pics d'intensité sur des images IRT. Nous proposons une méthode automatique de détection des feux de forêt par imagerie satellitaire fondée sur la théorie des champs aléatoires. Pour ce faire, nous cherchons à modéliser dans un premier temps l'image par une réalisation d'un champ gaussien. Les zones de feux, minoritaires et de fortes intensités sont considérées comme des éléments étrangers à ce champ : ce sont des évènements rares. Ensuite, par une analyse statistique, nous déterminons un jeu de probabilités définissant, pour une zone donnée de l'image, un degré d'appartenance au champ gaussien, et par complémentarité aux zones potentiellement en feux. Numéro de notice : A2007-128 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : sans En ligne : https://gretsi.fr/data/ts/pdf/2007_24_1_8905_1.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=103326
in Traitement du signal > vol 24 n° 1 [01/02/2007] . - pp 1 - 12[article]Remote sensing observations of pre-earthquake thermal anomalies in Iran / S. Choudhury in International Journal of Remote Sensing IJRS, vol 27 n°18 - 19 - 20 (October 2006)
[article]
Titre : Remote sensing observations of pre-earthquake thermal anomalies in Iran Type de document : Article/Communication Auteurs : S. Choudhury, Auteur ; Susmita Dasgupta, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 4381 - 4396 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] anomalie thermique
[Termes IGN] détection de changement
[Termes IGN] image NOAA-AVHRR
[Termes IGN] Iran
[Termes IGN] prévention des risques
[Termes IGN] risque naturel
[Termes IGN] séisme
[Termes IGN] température au solRésumé : (Auteur) Stresses acting before an earthquake in tectonically active regions can augment the near ground temperature of the region. Such changes detected through thermal remote sensing can provide important clues about future earthquakes. A post-earthquake analysis through NOAA-AVHRR data showed pre-earthquake thermal anomalies prior to the Bam earthquake on 26 December 2003 and the Dahoeieh-Zarand earthquake on 21 February 2005 in Iran. It was observed in these earthquakes that there was short-term temporal increase in land surface temperature (LST) of the regions around the epicenters. The rise in temperature was about 5–10°C. Further, temperature variation curves prepared from air temperature data collected from several meteorological stations around epicentres confirmed the appearance of thermal anomalies prior to several earthquakes between February and March 2005 in Iran. The thermal anomalies went away along with the earthquake events. Release of greenhouse gases from rocks due to the induced pressure before earthquakes can create a localized greenhouse effect. Charge carriers in rocks can be free electrons, which dissociate under high pressure. When they again recombine to attain electron stability they release heat, which can increase the LST of the region. Copyright Taylor & Francis Numéro de notice : A2006-466 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600851827 En ligne : https://doi.org/10.1080/01431160600851827 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28190
in International Journal of Remote Sensing IJRS > vol 27 n°18 - 19 - 20 (October 2006) . - pp 4381 - 4396[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-06101 RAB Revue Centre de documentation En réserve L003 Disponible ASTER observations of thermal anomalies preceding the April 2003 eruption of Chikurachki volcano, Kurile Islands, Russia / D. Pieri in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)
[article]
Titre : ASTER observations of thermal anomalies preceding the April 2003 eruption of Chikurachki volcano, Kurile Islands, Russia Type de document : Article/Communication Auteurs : D. Pieri, Auteur ; Michael Abrams, Auteur Année de publication : 2005 Article en page(s) : pp 84 - 94 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] anomalie thermique
[Termes IGN] éruption volcanique
[Termes IGN] image Terra-ASTER
[Termes IGN] image thermique
[Termes IGN] rayonnement infrarouge thermique
[Termes IGN] risque naturel
[Termes IGN] Russie
[Termes IGN] surveillance géologique
[Termes IGN] tâche claireRésumé : (Auteur) Chikurachki volcano (Nothern Kurile Islands Chain, Paramushir Island 50° 20'N, 155° 27'E; elevation 1816 m, stratovolcano) has been in a state of unrest for over twenty years. Its most recent eruption that began in April 2003 was preceded by an eruption between January May 2002. Thermal infrared images from the Japanese-United States' Advanced Spacebome Thermal Emission and Reflection Radiometer (ASTER-5 TIR channels, 8-12 um, 90 m/pixel, Noise Equivalent Delta Temperature [NET] 0.1-0.3 K, onboard the U.S. National Aeronautics and Space Administration's Terra polar-orbiting spacecraft) of a snow-covered Chikurachki Volcano taken in January 2003 show muted evidence of thermal activity. ASTER thermal infrared (TIR) images from February 2003, however, indicate warmer areas within the summit crater. Average whole-pixel temperatures of adjacent summit slopes are in the range of 250-252 K, while many summit-crater whole pixel temperatures are 2-6 K greater. A two component Planck solution for the warmer pixels yields a solution of 275-277 K for 10-15% of the Chikurachki summit crater and 285-295 K for 25-35% of a prominent "hotspot'* on its flank. An interpretation of this enhanced pre-eruption heat flow is the presence of surface melt water. The detection in ASTER data of such subtle precursory heat-flow enhancement, even retrospectively, raises important issues for remote monitoring of "dormant" snow-capped volcanoes, especially those that threaten nearby populations, like Mt. Rainier. Numéro de notice : A2005-442 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2005.06.012 En ligne : https://doi.org/10.1016/j.rse.2005.06.012 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27578
in Remote sensing of environment > vol 99 n° 1-2 (15 November 2005) . - pp 84 - 94[article]Spectral and radiometric requirements for the airborne thermal imaging spectrometer ARES / R. Richter in International Journal of Remote Sensing IJRS, vol 26 n° 15 (August 2005)PermalinkAutomated detection of thermal features of active volcanoes by means of infrared AVHRR records / N. Pergola in Remote sensing of environment, vol 93 n° 3 (15/11/2004)PermalinkMapping coal fires based on OMIS1 thermal infrared band image / Y. Wan in International Journal of Remote Sensing IJRS, vol 25 n° 3 (February 2004)PermalinkImpacts of hydrologic soil properties on drought detection with MODIS thermal data / S. Park in Remote sensing of environment, vol 89 n° 1 (15/01/2004)PermalinkAirborne forest fire mapping with an adaptive infrared sensor / D. Oertel in International Journal of Remote Sensing IJRS, vol 24 n° 18 (September 2003)PermalinkFusion of spectral and shape features for identification of urban surface cover types using reflective and thermal hyperspectral data / Karl Segl in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 1-2 (June - December 2003)PermalinkSatellite multi-sensor data analysis of urban surface temperatures and Landcover / B. Dousset in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 1-2 (June - December 2003)PermalinkApport de la thermographie infrarouge aéroportée à l'étude de l'hétérogénéité d'une zone humide / René Guérin in Photo interprétation, vol 39 n° 1 (Avril 2003)PermalinkDemonstrating UVA-acquired real-time thermal data of fires / V.G. Ambrosia in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 4 (April 2003)PermalinkIncorporating surface emissivity into a thermal atmospheric correction / N.A. Brunsell in Photogrammetric Engineering & Remote Sensing, PERS, vol 68 n° 12 (December 2002)Permalink