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Termes IGN > sciences naturelles > physique > optique > optique physique
optique physiqueSynonyme(s)optique ondulatoire |
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Shoreline extraction from RADARSAT-2 intensity imagery using a narrow band level set segmentation approach / Y. Shu in Marine geodesy, vol 33 n° 2-3 (April - September 2010)
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Titre : Shoreline extraction from RADARSAT-2 intensity imagery using a narrow band level set segmentation approach Type de document : Article/Communication Auteurs : Y. Shu, Auteur ; J. Li, Auteur ; G. Gomes, Auteur Année de publication : 2010 Article en page(s) : pp 187 - 203 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] bande spectrale
[Termes IGN] extraction de traits caractéristiques
[Termes IGN] image Radarsat
[Termes IGN] segmentation d'image
[Termes IGN] seuillage d'image
[Termes IGN] trait de côteRésumé : (Auteur) This paper presents a semi-automated method for shoreline extraction from RADARSAT-2 intensity imagery. First, a preprocessing is applied to enhance the contrast of the SAR image. Second, thresholding combined with morphological filtering is employed to segment the SAR image into the land and the sea. Third, narrow band level set segmentation is implemented to refine the segmentation result. In the last step, morphological filters are utilized to eliminate any remaining spurious segments. Boundaries between the land and the sea are delineated into shorelines based on the segmentation result. Experiment on RADARSAT-2 intensity images demonstrates that the proposed method is promising. Numéro de notice : A2010-557 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/01490419.2010.496681 Date de publication en ligne : 28/04/2010 En ligne : https://doi.org/10.1080/01490419.2010.496681 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30749
in Marine geodesy > vol 33 n° 2-3 (April - September 2010) . - pp 187 - 203[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 230-2010021 RAB Revue Centre de documentation En réserve L003 Disponible Uncertainty within satellite LiDAR estimations of vegetation and topography / J. Rosette in International Journal of Remote Sensing IJRS, vol 31 n° 5 (March 2010)
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Titre : Uncertainty within satellite LiDAR estimations of vegetation and topography Type de document : Article/Communication Auteurs : J. Rosette, Auteur ; P. North, Auteur ; J. Suarez, Auteur ; S. Los, Auteur Année de publication : 2010 Conférence : Silvilaser 2008, 8th international conference on Lidar applications in forest assessment and inventory 17/09/2008 19/09/2008 Edimbourg Royaume-Uni Proceedings Taylor&Francis Article en page(s) : pp 1325 - 1342 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] altimétrie satellitaire par laser
[Termes IGN] canopée
[Termes IGN] décomposition de Gauss
[Termes IGN] données ICEsat
[Termes IGN] forme d'onde
[Termes IGN] hauteur des arbres
[Termes IGN] modèle de transfert radiatif
[Termes IGN] modèle numérique de surface
[Termes IGN] pente
[Termes IGN] reliefRésumé : (Auteur) This paper demonstrates the ability to identify representative ground elevation and vegetation height estimates within the Ice, Cloud and land Elevation Satellite/Geoscience Laser Altimeter System (ICESat/GLAS) waveforms for an area of mixed vegetation and varied topography. Estimating vegetation height within large-footprint Light Detection and Ranging (LiDAR) waveforms relies on the ability to estimate the uppermost canopy surface (signal beginning) and an elevation representing the ground surface, both of which are influenced by vegetation properties and topographic slope. We examined sources of uncertainty for vegetation height estimation from ICESat/GLAS data using airborne LiDAR data, field measurements and the FLIGHT radiative transfer model. In comparison with an independent 10-m resolution digital terrain model (DTM), a method using Gaussian decomposition of the satellite waveform produced a mean bias of -0.10 m when estimating ground elevation. A second method of estimating vegetation height using waveform extent and a terrain index effectively removed slope as an error source but produced a greater ground surface offset (-0.83 m). The two methods of estimating vegetation height compared well with airborne LiDAR estimates (correlation coefficient (R2) = 0.68, root mean square error (RMSE) = 4.4 m and R2 = 0.61, RMSE = 4.9 m, respectively). However, the complex interplay of the structural and optical properties of the intercepted vegetation and slope requires further understanding. A tool such as FLIGHT provides a useful means to explore the sensitivity of the waveform to both vegetation properties and topographic slope. Numéro de notice : A2010-253 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160903380631 En ligne : https://doi.org/10.1080/01431160903380631 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30447
in International Journal of Remote Sensing IJRS > vol 31 n° 5 (March 2010) . - pp 1325 - 1342[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-2010031 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Digital camera performance where spatial resolution is determined by the optical component / G.H. Thomson in Photogrammetric record, vol 25 n° 129 (March - May 2010)
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Titre : Digital camera performance where spatial resolution is determined by the optical component Type de document : Article/Communication Auteurs : G.H. Thomson, Auteur Année de publication : 2010 Article en page(s) : pp 42 - 46 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] caméra numérique
[Termes IGN] capteur spatial
[Termes IGN] diffraction
[Termes IGN] pouvoir de résolution géométrique
[Termes IGN] système optique
[Termes IGN] test de performanceRésumé : (Auteur) The spatial resolution attributed to digital cameras is usually based on the number or size of the pixels in the sensor. On closer examination it can often be shown that the real limit to the level of detail recorded by a camera will in practice be due to the performance of the optical system. An example of how this happens is given with a comparison between two satellite camera systems. Copyright RS&PS + Blackwell Publishing Numéro de notice : A2010-062 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2009.00566.x Date de publication en ligne : 11/03/2010 En ligne : https://doi.org/10.1111/j.1477-9730.2009.00566.x Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30258
in Photogrammetric record > vol 25 n° 129 (March - May 2010) . - pp 42 - 46[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-2010011 RAB Revue Centre de documentation En réserve L003 Disponible Homogeneous zenith total delay parameter estimation from European permanent GNSS sites / Wolfgang Söhne in Bulletin of geodesy and geomatics BGG, vol 69 n° 1 (March 2010)
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Titre : Homogeneous zenith total delay parameter estimation from European permanent GNSS sites Type de document : Article/Communication Auteurs : Wolfgang Söhne, Auteur ; Mariusz Figurski, Auteur ; K. Szafranek, Auteur Année de publication : 2010 Article en page(s) : pp 11 - 20 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] estimation statistique
[Termes IGN] propagation troposphérique
[Termes IGN] réseau permanent EUREF
[Termes IGN] rotation de la Terre
[Termes IGN] station GNSS
[Termes IGN] traitement de données GNSSRésumé : (Auteur) Starting in 2001 the EUREF Permanent Network (EPN) Local Analysis Centres (LAC) are delivering Zenith Total Delay (ZTD) parameters which were combined at the BKG (Bundesamt für Kartographie und Geodäsie, Germany) combination facility. The results have been step-by-step improved, depending on several changes of the processing scheme, leading to an internal precision of 2-3 mm ZTD. The availability of a set of homogeneously processed GPS satellite orbits, clocks and Earth Rotation Parameters (ERP) covering a period of more than a decade (the so-called Potsdam-Dresden reprocessing) motivated MUT (Military University of Technology, Poland) to the all-in-one processing of the EPN stations for the same period. The applied strategy thereby followed the guidelines for EPN processing. While the improvement in coordinate estimation has been recently demonstrated, this paper investigates the quality of the ZTD parameters estimated together with the coordinates. Comparisons with the existing EUREF combined solution, with IGS solutions and with radiosonde data will be presented to evaluate the possible improvement in ZTD estimation by reprocessing activities. Numéro de notice : A2010-588 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=77986
in Bulletin of geodesy and geomatics BGG > vol 69 n° 1 (March 2010) . - pp 11 - 20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013-2010011 RAB Revue Centre de documentation En réserve L003 Disponible
[article]
Titre : Solar atlas of Berlin Type de document : Article/Communication Auteurs : D. Ludwig, Auteur ; L. Mckinley, Auteur Année de publication : 2010 Article en page(s) : pp 17 - 21 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] atlas numérique
[Termes IGN] Berlin
[Termes IGN] énergie solaire
[Termes IGN] ensoleillement
[Termes IGN] géomatique web
[Termes IGN] site web
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Airborne has yet to become as ubiquitous as aerial imagery for GIS application. But one important use has recently been identified. An online atlas of potential solar energy yield was created for the city of Berlin by measuring parameters such as roof area and slop, taking into account shadowing from vertical objects such as chimneys and masts. The atlas is freely accessible to home and business owners and the hope is that will create more demand for photovoltaic and solar thermal panels. Copyright Reed Business Numéro de notice : A2010-058 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30254
in GIM international > vol 24 n° 3 (March 2010) . - pp 17 - 21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 061-2010031 RAB Revue Centre de documentation En réserve L003 Disponible Wide-area RTK: high precision positioning on a continental scale / Manuel Hernández-Pajares in Inside GNSS, vol 5 n° 2 (March - April 2010)
PermalinkEvaluation of Terrasar-X observations for wetland INSAR application / S.H. Hong in IEEE Transactions on geoscience and remote sensing, vol 48 n° 2 (February 2010)
PermalinkGlobal 4DVAR assimilation and forecast experiments using AMSU observations over land. Part II: Impacts of assimilating surface-sensitive channels on the African monsoon during AMMA / Fatima Karbou in Weather and Forecasting, vol 25 n° 1 (February 2010)
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PermalinkTerrasar-X instrument operations rooted in the system engineering and calibration projet / U. Steinbrecher in IEEE Transactions on geoscience and remote sensing, vol 48 n° 2 (February 2010)
PermalinkAnalyse combinée de données GPS et lidar Raman acquises lors de la campagne COPS pour l'amélioration du positionnement vertical par GPS / Martin Blocquaux (2010)
PermalinkAnalyse de données lidar à retour d'onde complète pour la classification en milieu urbain = Analysis of Full-Waveform lidar data for urban area mapping / Clément Mallet (2010)
PermalinkCoupling polarimetric L-Band insar and airborne lidar to characterize the geomorphological deformations in the piton de la fournaise volcano / Essam Heggy (2010)
PermalinkFactors influencing pulse width of small footprint, full wave form airborne laser scanning data / Y.C. Lin in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 1 (January 2010)
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