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scientifique

An automated approach for updating land cover maps based on integrated change detection and classification methods / X. Chen in ISPRS Journal of photogrammetry and remote sensing, vol 71 (July 2012)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 71 (July 2012) . - pp 86 - 95 Titre : An automated approach for updating land cover maps based on integrated change detection and classification methods Type de document : Article/Communication Auteurs : X. Chen, Auteur ; J. Chen, Auteur ; Y. Shi, Auteur ; Yasushi Yamaguchi, Auteur Année de publication : 2012 Article en page(s) : pp 86 - 95 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] carte d'occupation du sol [Termes IGN] champ aléatoire de Markov [Termes IGN] Chensi (Chine) [Termes IGN] détection de changement [Termes IGN] image Landsat-ETM+ [Termes IGN] mise à jour de base de données Résumé : (Auteur) Updating land cover maps from remotely sensed data in a timely manner is important for many areas of scientific research. Unfortunately, traditional classification procedures are very labor intensive and subjective because of the required human interaction. Based on the strategy of updating land cover data only for the changed area, we proposed an integrated, automated approach to update land cover maps without human interaction. The proposed method consists primarily of the following three parts: a change detection technique, a Markov Random Fields (MRFs) model, and an iterated training sample selecting procedure. In the proposed approach, remotely sensed data acquired in different seasons or from different remote sensors can be used. Meanwhile, the approach is completely unsupervised. Therefore, the methodology has a wide scope of application. A case study of Landsat data was conducted to test the performance of this method. The experimental results show that several sub-modules in this method work effectively and that reasonable classification accuracy can be achieved. Numéro de notice : A2012-350 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.05.006 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.05.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31796 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-2012051	SL	Revue	Centre de documentation	Revues en salle	Disponible

Evaluation of modified four-component scattering power decomposition method over highly rugged glaciated terrain / G. Singh in Geocarto international, vol 27 n° 2 (March 2012)  

Public [article]  inGeocarto international > vol 27 n° 2 (March 2012) . - pp 139 - 151 Titre : Evaluation of modified four-component scattering power decomposition method over highly rugged glaciated terrain Type de document : Article/Communication Auteurs : G. Singh, Auteur ; Yasushi Yamaguchi, Auteur ; S. Park, Auteur ; R. Avtar, Auteur Année de publication : 2012 Article en page(s) : pp 139 - 151 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] décomposition d'image [Termes IGN] décomposition spectrale [Termes IGN] glace [Termes IGN] Himalaya [Termes IGN] image radar moirée [Termes IGN] polarimétrie radar Résumé : (Auteur) In recent years, there has been increased utilization of fully polarimetric synthetic aperture radar (POLSAR) data to study glaciated terrain features for glaciological and climate change modelling. This article is concerned with more accurate results and appropriate analysis of POLSAR data over a highly rugged glaciated area in Himalayan region. For this purpose, the modified Yamaguchi four-component scattering power decomposition (4-CSPD) method with a rotation concept of 3 x 3 coherency matrix [T] about line of sight is evaluated. It has been found that the modified Yamaguchi 4-CSPD method significantly improved the decomposition results as compared with the original 4-CSPD by minimizing the cross-polarized Horizontal-Vertical (HV) components. This modified 4-CSPD leads to enhancement in the double bounce scattering and surface scattering components and also avoids the overestimation problem in the volume scattering component as compared with the original 4-CSPD from the sloped terrain. The significant reductions of the negative power occurrence in the surface scattering (3.9%) and the double bounce scattering (19.7%) components have also been noticed as compared with the original 4-CSPD method over the glaciated area in this part of the Indian Himalaya. Numéro de notice : A2012-127 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2011.626082 Date de publication en ligne : 20/10/2011 En ligne : https://doi.org/10.1080/10106049.2011.626082 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31575 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2012021	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Analysis of urban heat-island effect using ASTER and ETM+ data: separation of anthropogenic heat discharge and natural heat radiation from sensible heat flux / S. Katowski in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  

Public [article]  inRemote sensing of environment > vol 99 n° 1-2 (15 November 2005) . - pp 44 - 54 Titre : Analysis of urban heat-island effect using ASTER and ETM+ data: separation of anthropogenic heat discharge and natural heat radiation from sensible heat flux Type de document : Article/Communication Auteurs : S. Katowski, Auteur ; Yasushi Yamaguchi, Auteur Année de publication : 2005 Article en page(s) : pp 44 - 54 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] analyse diachronique [Termes IGN] données météorologiques [Termes IGN] énergie [Termes IGN] ilot thermique urbain [Termes IGN] image Landsat-ETM+ [Termes IGN] image Terra-ASTER [Termes IGN] Japon [Termes IGN] milieu urbain [Termes IGN] rayonnement solaire Résumé : (Auteur) The urban heat-island effect occurs as a result of increased sensible heat flux from the land surface to the atmosphere near cities. Sensible heat flux consists of two components: exhausted anthropogenic heat, and heat radiation due to solar input. The latter may be enhanced by changes in the usage of artificial land surface. The authors have developed a new method to separate the anthropogenically discharged heat and natural heat radiation from the sensible heat flux, based on a heat-balance model using satellite remote sensing and ground meteorological data. This method was applied to ASTER and ETM+ data for the daytime during spring, summer and winter and for the nighttime during autumn in Nagoya, Japan. The increased sensible heat flux was approximately 100 W/m2 in the central part of the city during the summer. Sensible heat flux at night during autumn was approximately 0 W/m2 except in urban areas and over bodies of water. During the winter, anthropogenic heat accounted for almost all of the sensible heat flux in urban areas. The contribution of anthropogenic heat to sensible heat flux in spring was lower than the contributions in summer and winter. The anthropogenic heat flux was high in industrial areas throughout the year. These results are consistent with the fact that anthropogenic energy consumption is high in summer and winter and low in spring and autumn. Numéro de notice : A2005-440 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2005.04.026 En ligne : https://doi.org/10.1016/j.rse.2005.04.026 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27576 [article]

vol 99 n° 1-2 - 15 November 2005 - Scientific Results from ASTER (Bulletin de Remote sensing of environment) / Alan Gillespie  

Public [n° ou bulletin]  Titre : vol 99 n° 1-2 - 15 November 2005 - Scientific Results from ASTER Type de document : Périodique Auteurs : Alan Gillespie, Éditeur scientifique ; Michael Abrams, Éditeur scientifique ; Yasushi Yamaguchi, Éditeur scientifique Année de publication : 2005 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] image infrarouge [Termes IGN] image Terra-ASTER [Termes IGN] radiomètre Numéro de notice : 110-0419 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Numéro de périodique En ligne : http://www.sciencedirect.com/science/journal/00344257/99/1-2?sdc=2 Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=21470 [n° ou bulletin]

Contient

• Assessment of ASTER land cover and MODIS data at multiple scales for ecological characterization of an arid urban center / W.L. Stefanov in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  
• Analysis of urban heat-island effect using ASTER and ETM+ data: separation of anthropogenic heat discharge and natural heat radiation from sensible heat flux / S. Katowski in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  
• Estimating sub-pixel surface roughness using remotely sensed stereoscopic data / A. Mushkin in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  
• 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)  

Detection of a landslide movement as geometric misregistration in image matching of SPOT HRV data of two different dates / Yasushi Yamaguchi in International Journal of Remote Sensing IJRS, vol 24 n° 18 (September 2003)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 24 n° 18 (September 2003) . - pp 3523 - 3534 Titre : Detection of a landslide movement as geometric misregistration in image matching of SPOT HRV data of two different dates Type de document : Article/Communication Auteurs : Yasushi Yamaguchi, Auteur ; S. Tanaka, Auteur ; T. Odajima, Auteur ; T. Kamai, Auteur ; S. Tsuchida, Auteur Année de publication : 2003 Article en page(s) : pp 3523 - 3534 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] analyse diachronique [Termes IGN] effondrement de terrain [Termes IGN] GPS en mode différentiel [Termes IGN] image multitemporelle [Termes IGN] image panchromatique [Termes IGN] image SPOT-HRV [Termes IGN] Japon [Termes IGN] mouvement de terrain [Termes IGN] positionnement par GPS Résumé : (Auteur) A landslide movement was detected as geometric misregistration in image matching between two SPOT HRV panchromatic image data of different acquisition dates. The test site is an active landslide in Itaya area, Yamagata Prefecture, northern Japan. The average rate of the landslide movement is approximately 1 cm per day based upon differential GPS measurements. Pixel level and subpixel level image matching was applied to an HRV image pair obtained on I November 1987 and 29 October 1993. As a result, the landslide movement was successfully detected as misregistration vectors between the two HRV scenes. The displacement is approximately 20m to 30m over the 6-year period between 1987 and 1993 and is consistent with the landslide movement inferred from the GPS measurements. Numéro de notice : A2003-261 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160110111063 En ligne : https://doi.org/10.1080/01431160110111063 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22556 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-03181	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Overview of advanced spaceborne thermal emission and reflection radiometer (ASTER) / Yasushi Yamaguchi in IEEE Transactions on geoscience and remote sensing, vol 36 n° 4 (July 1998)  

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Possible techniques for lithologic discrimination using the short-wavelength-infrared bands of the Japanese ERS-1 / Yasushi Yamaguchi in Remote sensing of environment, vol 23 n° 1 (01/10/1987)  

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