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Study on the polarimetric characteristics of the Lop Nur arid area using PolSAR data / Zhihong Gao in Journal of applied remote sensing, vol 8 (2014)
[article]
Titre : Study on the polarimetric characteristics of the Lop Nur arid area using PolSAR data Type de document : Article/Communication Auteurs : Zhihong Gao, Auteur ; Huaze Gong, Auteur ; Xu Zhou, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : 14 p. Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] caractérisation
[Termes IGN] décomposition spectrale
[Termes IGN] données polarimétriques
[Termes IGN] image ALOS-PALSAR
[Termes IGN] image radar moirée
[Termes IGN] lac
[Termes IGN] polarimétrie radar
[Termes IGN] Sinkiang (Chine)
[Termes IGN] zone arideRésumé : (auteur) The quantitative study of the arid Lop Nur lake basin is significant to investigate the environmental changes in the arid area of northwestern China and extremely arid areas of Eurasia in general. Synthetic aperture radar (SAR) imagery, with its penetration capability and advantages for studying geological phenomena on a large spatial scale, is very suitable for analyzing the subsurface of the Lop Nur area. Based on the full polarimetric ALOS PALSAR data and field investigation, it was found that the two-layer scattering mechanism of the dry sediments is very special and complex. The scattering mechanism in the bright strips is more complex than that in the gray strips according to the co-polarization correlation analysis. The experimental results show that the Cloude–Pottier decomposition method is more appropriate for this area. Moreover, the polarimetric characteristics and Cloude-Pottier decomposition results are very important for the study of the past climatic change in Lop Nur area. In conclusion, full polarimetric SAR data and target decomposition theory provide a new technique for obtaining information and quantitatively studying the subsurface characteristics of arid areas. Numéro de notice : A2014-701 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1117/1.JRS.8.083681 En ligne : http://remotesensing.spiedigitallibrary.org/article.aspx?articleid=1828549 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75390
in Journal of applied remote sensing > vol 8 (2014) . - 14 p.[article]Basal area and biomass estimates of loblolly pine stands using L-band UAVSAR / William L. Marks in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 1 (January 2014)
[article]
Titre : Basal area and biomass estimates of loblolly pine stands using L-band UAVSAR Type de document : Article/Communication Auteurs : William L. Marks, Auteur ; Ross S. Lunetta, Auteur ; John S. Iiames, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 33 - 42 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande L
[Termes IGN] biomasse
[Termes IGN] Caroline du Nord (Etats-Unis)
[Termes IGN] drone
[Termes IGN] forêt
[Termes IGN] image radar moirée
[Termes IGN] Pinus taeda
[Termes IGN] polarimétrie radarRésumé : (Auteur) Fully polarimetric L-band Synthetic Aperture Radar (SAR) backscatter was collected using NASA's Unmanned Aerial Vehicle (UAV) SAR and regressed with in situ measure-ments of basal area (BA) and above ground biomass (AGB) of mature Loblolly pine stands in North Carolina. Results found HH polarization consistently displayed the lowest correlations where HV andVV exhibited the highest correlations in all groups for both BA and AGB. When plantation stands were analyzed separately (plantation versus natural), correlation improved significantly for both BA (R2 = 0.65, hv) and AGB (R2 = 0.66, vv). Similarly, results improved when natural stands were analyzed separately resulting in the highest correlation for AGB (R2 = 0.63, HV and VV). Data decomposition using the Freeman 3-component model indicated that the relative low correlations were due to the saturation of the L-band backscatter across the majority of the study area. Numéro de notice : A2014-091 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.14358/PERS.80.1.33 En ligne : https://doi.org/10.14358/PERS.80.1.33 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32996
in Photogrammetric Engineering & Remote Sensing, PERS > vol 80 n° 1 (January 2014) . - pp 33 - 42[article]
Titre : Land applications of radar remote sensing Type de document : Monographie Auteurs : Damien Closson, Éditeur scientifique ; Francesco Holecz, Éditeur scientifique ; Paolo Pasquali, Éditeur scientifique ; et al., Auteur Editeur : London [UK] : IntechOpen Année de publication : 2014 Importance : 320 p. Format : 19 x 27 cm ISBN/ISSN/EAN : 978-953-51-4233-1 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] carte forestière
[Termes IGN] déformation de la croute terrestre
[Termes IGN] détection de changement
[Termes IGN] données polarimétriques
[Termes IGN] filtre de déchatoiement
[Termes IGN] occupation du sol
[Termes IGN] radargrammétrie
[Termes IGN] série temporelle
[Termes IGN] surveillance d'ouvrage
[Termes IGN] traitement d'image radarRésumé : (éditeur) The aim of this book is to demonstrate the use of SAR data in three application domains, i.e. land cover (Part II), topography (Part III), and land motion (Part IV). These are preceded by Part I, where an extensive and complete review on speckle and adaptive filtering is provided, essential for the understanding of SAR images. Part II is dedicated to land cover mapping. Part III is devoted to the generation of Digital Elevation Models based on radargrammetry and on a wise fusion (by considering sensor characteristic and acquisition geometry) of interferometric and photogrammetric elevation data. Part IV provides a contribution to three applications related to land motion. Note de contenu : 1- Adaptive speckle filtering in radar imagery
2- Large scale mapping of forests and land cover with synthetic aperture radar data
3- Estimation of cultivated areas using multi-temporal SAR data
4- Combining moderate-resolution time-series RS data from SAR and optical sources for rice crop characterisation: Examples from Bangladesh
5- Change detection and classification using high resolution SAR interferometry
6- High resolution radargrammetry – 3D terrain modeling
7- Fusion of interferometric SAR and photogrammetric elevation data
8- SAR data analysis in solid Earth geophysics: From science to risk management
9- Dikes stability monitoring versus sinkholes and subsidence, Dead Sea region, JordanNuméro de notice : 25939 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Recueil / ouvrage collectif DOI : 10.5772/55833 En ligne : https://doi.org/10.5772/55833 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96301 Unmixing polarimetric radar images based on land cover type before target decomposition / Sébastien Giordano (2014)
Titre : Unmixing polarimetric radar images based on land cover type before target decomposition Type de document : Article/Communication Auteurs : Sébastien Giordano , Auteur ; Grégoire Mercier, Auteur ; Jean-Paul Rudant , Auteur Editeur : New York : Institute of Electrical and Electronics Engineers IEEE Année de publication : 2014 Conférence : IGARSS 2014, International Geoscience And Remote Sensing Symposium 13/07/2014 18/07/2014 Québec Québec - Canada Proceedings IEEE Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] analyse des mélanges spectraux
[Termes IGN] image radar
[Termes IGN] matrice de covariance
[Termes IGN] polarimétrie radarRésumé : (auteur) A new method for unmixing radar polarimetric images with optical images is proposed. It was found that the polarimetric covariance matrix can be unmixed considering a linear model. As a result, this model is used to produce unmixed covariance matrices based on land cover types. We hope to prove that this unmixing of the polarimetric information produce greater information for land cover classification. Numéro de notice : C2014-043 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Thématique : IMAGERIE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1109/IGARSS.2014.6947055 Date de publication en ligne : 06/11/2014 En ligne : https://doi.org/10.1109/IGARSS.2014.6947055 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99588 Orthorectification of full-polarimetric radarsat-2 data using accurate LIDAR DSM / Thierry Toutin in IEEE Transactions on geoscience and remote sensing, vol 51 n° 12 (December 2013)
[article]
Titre : Orthorectification of full-polarimetric radarsat-2 data using accurate LIDAR DSM Type de document : Article/Communication Auteurs : Thierry Toutin , Auteur ; Huili Wang, Auteur ; Pierre Chomaz, Auteur ; Eric Pottier, Auteur Année de publication : 2013 Article en page(s) : pp 5252 - 5258 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] correction géométrique
[Termes IGN] données de terrain
[Termes IGN] données lidar
[Termes IGN] données polarimétriques
[Termes IGN] image radar moirée
[Termes IGN] image Radarsat
[Termes IGN] modèle numérique de surface
[Termes IGN] orthorectification automatique
[Termes IGN] polarimétrie radarRésumé : (Auteur) Orthorectification using digital terrain models is a key issue for full-polarimetric complex SAR data because resampling the complex data can corrupt the polarimetric phase, mainly in terrain with relief. This research thus compared two methods for the orthorectification of the complex SAR data: The polarimetric processing is performed before (image-space method) or after (ground-space method) the geometric processing. Radarsat-2 fine-quad data acquired with different look angles over a hilly relief study site were orthorectified using accurate light detection and ranging digital surface model. Quantitative evaluations between the two methods as a function of different geometric and radiometric parameters were thus performed to evaluate the impact during orthorectification. The results demonstrated that the look angles and the terrain slopes can potentially corrupt the polarimetric complex SAR data during its orthorectification with the ground-space method. In addition, general advice is provided to reduce these impacts to an acceptable level for the users and their polarimetric applications. Numéro de notice : A2013-695 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2233206 En ligne : https://doi.org/10.1109/TGRS.2012.2233206 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32831
in IEEE Transactions on geoscience and remote sensing > vol 51 n° 12 (December 2013) . - pp 5252 - 5258[article]Réservation
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