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A three dimensional scatterer map extends the DEM information in urban areas / Nico Adam in Revue Française de Photogrammétrie et de Télédétection, n° 182 (Juin 2006)
[article]
Titre : A three dimensional scatterer map extends the DEM information in urban areas Type de document : Article/Communication Auteurs : Nico Adam, Auteur ; M. Eineder, Auteur Année de publication : 2006 Conférence : ISPRS 2006, Commission 1 Symposium, From sensors to imagery 03/07/2006 06/07/2006 Champs-sur-Marne [Paris Marne-la-Vallée] France OA ISPRS Archives Article en page(s) : pp 5 - 9 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] coin réflecteur
[Termes IGN] données polarimétriques
[Termes IGN] image radar moirée
[Termes IGN] image SRTM
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] MNS SRTM
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modèle numérique de surface
[Termes IGN] Munich
[Termes IGN] précision millimétrique
[Termes IGN] tomographie
[Termes IGN] zone urbaineRésumé : (Auteur) The generation of digital elevation models (DEMs) by space-born InSAR is a well-established remote sensing technique. Several application projects as for instance the shuttle radar topography mission (SRTM) have proven the outstanding capability to map the Earth's surface globally with great accuracy and constant resolution applying this technique. The short mission time of only eleven days guaranteed the homogenous quality of the generated DEM. The typical InSAR-DEM provides a snapshot of the terrain elevation at the time of acquisition including the vegetation cover. A limitation is that the Earth's cover is mapped only down to a mean radar penetration depth. Polarimetry can be applied to separate volume scattering from the double bounce effect on the ground in forested areas. But in urban areas this scattering model can not be applied. This is in contrast to the great interest in urban areas caused by the high population density and change. Nowadays, the permanent scatterer interferometry which has been invented at POLIMI is working operational and can provide supplementing information. It allows a monitoring of urban areas over time spans of more than ten years. E.g. the subsidence in such spots can be detected and monitored with millimetre accuracy. The separation of the orbit, atmosphere and topography phase effects form the basis for the extreme accuracy regarding the displacement measurement. Furthermore, the PS estimation results in a high precision DEM update at the PS position. The structure of the cities and the radar observation geometry are the reason that this simple elevation concept needs to be extended. It is very likely that more than one dominant scatterer is inside a resolution cell. Tomography can resolve this ambiguity and provides the reflectivity along cross slant range height. Consequently, a real but irregular sampled 3D map of the persistent radar scatterers can be generated which describes the city better. The dominant radar scatterers are related to buildings and other men made features. This is the reason the exact three-dimensional locations of the scatterers provide a lot of useful information on the area and the shape of the city and allowing various applications. Such a 3D map can be a better DEM input for each PS processing that allows an effective PS detection and optimal parameter estimation. A new parametric method for the detection and relative estimation of the two dominant scatterers configuration inside of a resolution cell has been developed. The developed method is more robust because it uses amplitude data only and complements the full tomography which includes the phase information. The city of Munich is one of DLR's testsite for the PS processing and the developed tomography algorithms. Examples for the generated data set and applications will be shown. The permanent scatterers are assessed in situ and the 3D position of the scatterers is checked and compared to the estimates. Copyright SFPT Numéro de notice : A2006-617 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/part1/Papers/T09-40.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28340
in Revue Française de Photogrammétrie et de Télédétection > n° 182 (Juin 2006) . - pp 5 - 9[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 018-06021 RAB Revue Centre de documentation En réserve L003 Disponible Polarimetric and interferometric characterization of coherent scatterers in urban areas / R.Z. Schneider in IEEE Transactions on geoscience and remote sensing, vol 44 n° 4 (April 2006)
[article]
Titre : Polarimetric and interferometric characterization of coherent scatterers in urban areas Type de document : Article/Communication Auteurs : R.Z. Schneider, Auteur ; K.P. Papathanassiou, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 971 - 984 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bande L
[Termes IGN] coin réflecteur
[Termes IGN] image aérienne
[Termes IGN] image radar moirée
[Termes IGN] polarimétrie
[Termes IGN] zone urbaineRésumé : (Auteur) In this paper, the concept of point-like coherent scatterers (CSs) in urban areas is introduced. The detection of CSs in single and quad-polarized images is addressed and applied on polarimetric and interferometric high-resolution airborne SAR data at L-band. For the detection of CSs two different approaches are proposed and their individual performance is analyzed. The properties of the detected CSs and their polarimetric and interferometric characteristics are assessed. The role of polarimetry on the detection of the CSs is evaluated and the potential of extracting the orientation and dielectric properties of individual CSs is finally addressed. Copyright IEEE Numéro de notice : A2006-212 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2005.860950 En ligne : https://doi.org/10.1109/TGRS.2005.860950 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27939
in IEEE Transactions on geoscience and remote sensing > vol 44 n° 4 (April 2006) . - pp 971 - 984[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-06041 RAB Revue Centre de documentation En réserve L003 Disponible Time-space modelling with terrestrial Lidar: monitoring ice cliff evolution of the glacier, Italy with ILRS-3D / A. Tamburini in GIM international, vol 19 n° 11 (November 2005)
[article]
Titre : Time-space modelling with terrestrial Lidar: monitoring ice cliff evolution of the glacier, Italy with ILRS-3D Type de document : Article/Communication Auteurs : A. Tamburini, Auteur ; P. Deline, Auteur ; G. Mortara, Auteur Année de publication : 2005 Article en page(s) : pp 31 - 33 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse spatio-temporelle
[Termes IGN] données lidar
[Termes IGN] géoréférencement
[Termes IGN] glacier
[Termes IGN] GPS en mode statique
[Termes IGN] Italie
[Termes IGN] modèle conceptuel de données spatio-temporelles
[Termes IGN] modèle numérique de terrain
[Termes IGN] Mont-Blanc, massif du
[Termes IGN] points homologues
[Termes IGN] réflecteur
[Termes IGN] surveillance hydrologique
[Termes IGN] Triangulated Irregular Network
[Termes IGN] visualisation 3DRésumé : (Editeur) The Miage Glacier at Mont-Blanc Massif, with an area totalling 11km2 is the third largest glacier in Italy. Time-space modelling of the lakebed and glacier walls carried out with terrestrial Lidar revealed that the ice cliff had retreated more than 45m between july 2003 and september 2004. Numéro de notice : A2005-429 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27565
in GIM international > vol 19 n° 11 (November 2005) . - pp 31 - 33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 061-05111 RAB Revue Centre de documentation Revues en salle Disponible GPS and GIS assisted radar interferometry / Linlin Ge in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 10 (October 2004)
[article]
Titre : GPS and GIS assisted radar interferometry Type de document : Article/Communication Auteurs : Linlin Ge, Auteur ; X. Li, Auteur ; Chris Rizos, Auteur ; M. Omura, Auteur Année de publication : 2004 Article en page(s) : pp 1173 - 1177 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] carrière souterraine
[Termes IGN] géoréférencement
[Termes IGN] image radar moirée
[Termes IGN] interferométrie différentielle
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] mine
[Termes IGN] positionnement par GPS
[Termes IGN] réflecteur
[Termes IGN] subsidence
[Termes IGN] surveillance géologique
[Termes IGN] Sydney (Nouvelle-Galles du Sud)Résumé : (Auteur) Error in radar satellite orbit determination is a common problem in radar interferometry (INSAR). For example, when we try to locate a radar test site with known geographic coordinates using the geocoding information in SLC (the latitude and longitude of the four image corners), the location is well away from the true position. Another example is when there is a significant disturbance in the differential INSAR result, we sometimes are not sure whether it is from ground deformation or atmospheric heterogeneity. Even after these are corrected, we need to export the INSAR results to a GIS format so that they can be overlaid as layers over orthophotos and mine plans (in the case of mining subsidence) in order to interpret the results. Therefore, it is proposed to use both GPS and GIS to assist radar interferometry. Results are presented with an application to monitoring subsidence due to underground mining southwest of Sydney, Australia. Numéro de notice : A2004-365 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.70.10.1173 En ligne : https://doi.org/10.14358/PERS.70.10.1173 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26892
in Photogrammetric Engineering & Remote Sensing, PERS > vol 70 n° 10 (October 2004) . - pp 1173 - 1177[article]Landslide monitoring in the Three Gorges area using D-InSAR and corner reflectors / Y. Xia in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 10 (October 2004)
[article]
Titre : Landslide monitoring in the Three Gorges area using D-InSAR and corner reflectors Type de document : Article/Communication Auteurs : Y. Xia, Auteur ; H. Kaufmann, Auteur ; X.F. Guo, Auteur Année de publication : 2004 Article en page(s) : pp 1167 - 1172 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] Chine
[Termes IGN] coin réflecteur
[Termes IGN] image radar moirée
[Termes IGN] interferométrie différentielle
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] mouvement de terrain
[Termes IGN] précision centimétrique
[Termes IGN] surveillance géologique
[Termes IGN] Trois Gorges, barrage desRésumé : (Auteur) The differential INSAR technique has the potential for monitoring centimeter-scale ground motion in an accurate and cost-effective manner. Probably the most important limiting factor in the application of INSAR is temporal change in the complex reflectivity of the ground surface during the period between radar acquisitions. This can be due to changes in such parameters as moisture content or vegetation. The stable artificial corner reflectors can be identified from long temporal series of interferometric SAR images even with large baselines, and therefore decrease the risk of image decorrelation. This paper will discuss the following questions: 1) how to obtain the true phase of a corner reflector in a SAR complex image; 2) how to co-register the corner reflector pixels when the coherence of its surrounding area is extremely low; 3) how to select the interpolation kernel to resample the SAR image; and, 4) how to compute the interferometric phase of two co-registered corner reflectors without flat earth term and corners' height contribution. In order to demonstrate the results, a practical example of landslide monitoring in the Three Gorges area in China is presented. Numéro de notice : A2004-364 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.70.10.1167 En ligne : https://doi.org/10.14358/PERS.70.10.1167 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26891
in Photogrammetric Engineering & Remote Sensing, PERS > vol 70 n° 10 (October 2004) . - pp 1167 - 1172[article]Mise en évidence de phénomène de subsidence sur la ville d'Athènes (Grèce) lié à la construction du métro par la méthode des points stables en interférométrie radar / S. Van Gorp (2004)PermalinkSAR monitoring of progressive and seasonal ground deformation using the permanent scatterers technique / C. Colesanti in IEEE Transactions on geoscience and remote sensing, vol 41 n° 7 (July 2003)PermalinkThe Advanced Microwave Scanning Radiometer for the Earth observing system (AMSR-E), NASDA's contribution to the EOS for global energy and water cycle / T. Kawanishi in IEEE Transactions on geoscience and remote sensing, vol 41 n° 2 (February 2003)PermalinkEtude de sites instables sur la ville de Paris par interférométrie radar (technique "permanent scatterers") / E. Pajot (2003)PermalinkWide-angle airborne laser range data analysis for relative height determination of ground-based benchmarks / Olivier Bock in Journal of geodesy, vol 76 n° 6-7 (July 2002)PermalinkSub-cm subsidence measurements with the Wide-angle Airborne Laser ranging system / Olivier Bock in Surveys in Geophysics, vol 22 n° 5-6 (September 2001)PermalinkResults of the first aircraft experiment with the wide-angle airborne laser ranging system / Olivier Bock in European physical journal : applied physics, vol 10 n° 1 (April 2000)PermalinkPractical influences of geometric and radiometric image quality provided by different digital camera systems / S. Robson in Photogrammetric record, vol 16 n° 92 (October 1998 - March 1999)PermalinkSpace geodesy techniques / R.T.K. Jaldehag (1995)PermalinkRadar cross section analysis and control / A.K. Bhattacharya (1991)PermalinkElectronic distance measurement / J.M. Rueger (1990)PermalinkField reflectance calibration with grey standard reflectors / W.R. Philipson in International Journal of Remote Sensing IJRS, vol 10 n° 6 (June 1989)PermalinkSIR-B image calibration by corner reflector array / M. Fujita in International Journal of Remote Sensing IJRS, vol 9 n° 5 (May 1988)PermalinkLageos orbit decay due to infrared radiation from Earth / D.P. Rubincam (1987)PermalinkPorte-réflecteur tachéométrique permettant de déterminer la position de points déportés / G. Henriet in Géomètre, vol 1986 n° 11 (novembre 1986)PermalinkSystemanalyse der Laserentfernungsmessung / D. Egger (1985)PermalinkUne méthode d'avenir, le nivellement indirect de précision motorisé (Nipremo) / Michel Kasser in Bulletin d'information de l'Institut géographique national, n° 50 (juillet 1984)PermalinkLe terramètre / V. Poutier (1984)PermalinkOndes métriques et centimétriques / P.F. Combes (1982)PermalinkGeodetic results from ISAGEX [International Satellite Geodesy Experiment] data / J.G. Marsh (1974)PermalinkContrôle photogrammétrique des grands réflecteurs d'ondes par profils lumineux : congrès de Lausanne, 1968, commission 5 / A. Bernin in Bulletin [Société Française de Photogrammétrie], n° 31 (Juillet 1968)Permalink