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High resolution elevation data derived from stereoscopic CORONA imagery ground control: an approach using IKONOS and SRTM data / Nikolaos Galiatsatos in Photogrammetric Engineering & Remote Sensing, PERS, vol 74 n° 9 (September 2008)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 74 n° 9 (September 2008) . - pp 1093 - 1106 Titre : High resolution elevation data derived from stereoscopic CORONA imagery ground control: an approach using IKONOS and SRTM data Type de document : Article/Communication Auteurs : Nikolaos Galiatsatos, Auteur ; N.M. Donoghue, Auteur ; G. Philip, Auteur Année de publication : 2008 Article en page(s) : pp 1093 - 1106 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] contour [Termes IGN] correction géométrique [Termes IGN] distorsion d'image [Termes IGN] estimation de précision [Termes IGN] géométrie de l'image [Termes IGN] image Corona [Termes IGN] image Ikonos [Termes IGN] image SRTM [Termes IGN] MNS SRTM [Termes IGN] modèle numérique de surface [Termes IGN] modèle stéréoscopique [Termes IGN] radargrammétrie [Termes IGN] Syrie Résumé : (Auteur) The first space mission to provide stereoscopic imagery of the Earth’s surface was from the American CORONA spy satellite program from which it is possible to generate Digital Elevation Models (DEMs). CORONA imagery and derived DEMs are of most value in areas where conventional topographic maps are of poor quality, but the problem has been that until recently, it was difficult to assess their accuracy. This paper presents a methodology to create a high quality DEM from CORONA imagery using horizontal ground control derived from Ikonos space imagery and vertical ground control from map-based contour lines. Such DEMs can be produced without the need for field-based ground control measurements which is an advantage in many parts of world where ground surveying is difficult. Knowledge of CORONA image distortions, satellite geometry, ground resolution, and film scanning are important factors that can affect the DEM extraction process. A study area in Syria is used to demonstrate the method, and Shuttle Radar Topography Mission (SRTM) data is used to perform quantitative and qualitative accuracy assessment of the automatically extracted DEM. The SRTM data has enormous importance for validating the quality of CORONA DEMs, and so, unlocking the potential of a largely untapped part of the archive. We conclude that CORONA data can produce unbiased, high-resolution DEM data which may be valuable for researchers working in countries where topographic data is difficult to obtain. Copyright ASPRS Numéro de notice : A2008-346 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.74.9.1093 En ligne : https://doi.org/10.14358/PERS.74.9.1093 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29339 [article]

Channel migration studies in the middle Ganga basin, India, using remote sensing data / G. Philip in International Journal of Remote Sensing IJRS, vol 10 n° 6 (June 1989)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 10 n° 6 (June 1989) . - pp 1141 - 1149 Titre : Channel migration studies in the middle Ganga basin, India, using remote sensing data Type de document : Article/Communication Auteurs : G. Philip, Auteur ; Ravi P. Gupta, Auteur ; Atanu Bhattacharya, Auteur Année de publication : 1989 Article en page(s) : pp 1141 - 1149 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] fleuve [Termes IGN] image satellite [Termes IGN] migration humaine Numéro de notice : A1989-166 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431168908903953 En ligne : https://doi.org/10.1080/01431168908903953 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25126 [article]

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