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Orthophoto generation using Ikonos imagery and high-resolution DEM: a case study on volcanic hazard monitoring of Nysoros island (Greece) / S. Vassilopoulou in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 24 - 38 Titre : Orthophoto generation using Ikonos imagery and high-resolution DEM: a case study on volcanic hazard monitoring of Nysoros island (Greece) Type de document : Article/Communication Auteurs : S. Vassilopoulou, Auteur ; V. Dietrich, Auteur ; Emmanuel P. Baltsavias, Auteur ; Maria Pateraki, Auteur ; E. Lagios, Auteur ; I. Pacharidis, Auteur ; Lorenz Hurni, Auteur Année de publication : 2002 Article en page(s) : pp 24 - 38 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Orthophotographie, orthoimage [Termes IGN] cartographie des risques [Termes IGN] erreur moyenne quadratique [Termes IGN] GPS en mode cinématique [Termes IGN] Grèce [Termes IGN] image à résolution métrique [Termes IGN] image Ikonos [Termes IGN] modèle numérique de surface [Termes IGN] orthoimage [Termes IGN] orthorectification [Termes IGN] point d'appui [Termes IGN] point de vérification [Termes IGN] risque naturel [Termes IGN] surveillance géologique [Termes IGN] visualisation cartographique [Termes IGN] volcan [Termes IGN] zone à risque Résumé : (Auteur) Georeferenced highresolution satellite images can be used for acquisition of topographic information, navigation and visualisation for various environmental studies. The present study is part of the multidisciplinary EU project GEOWARN related to monitoring, warning and emergency planning for volcanic hazards in the island of Nisyros, Greece. Here, the main aim was the orthorectification of a 1m resolution pansharpened IKONOS Geo image of Nisyros island. For the orthorectification, a digital elevation model (DEM) with a cell size of 2 m and an RMS accuracy of ca. 3.5 m was used, as well as 38 selected ground control points (GCPs) measured with differential GPS. An objecttopixel space transformation using the ground control points was computed using two different models, a reliefcorrected affine transformation and the polynomial mapping functions of Kratky. These transformations were used for orthorectification and the orthopboto accuracy was evaluated using GCPs as check points. Postprocessing for radiometric improvement of the orthophotos was applied. The ortbophoto and the DEM served as basic tools for subsequent base mapping and visualisation. Copyright ISPRS Numéro de notice : A2002-281 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00126-0 En ligne : https://doi.org/10.1016/S0924-2716(02)00126-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22192 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-02042	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-02041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Photogrammetric and GIS techniques for the development of vegetation databases of mountainous areas: Great smoky mountains national Park / R. Welch in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 53 - 68 Titre : Photogrammetric and GIS techniques for the development of vegetation databases of mountainous areas: Great smoky mountains national Park Type de document : Article/Communication Auteurs : R. Welch, Auteur ; T. Jordan, Auteur ; Marguerite Madden, Auteur Année de publication : 2002 Article en page(s) : pp 53 - 68 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] base de données thématiques [Termes IGN] carte de la végétation [Termes IGN] Etats-Unis [Termes IGN] flore locale [Termes IGN] incendie de forêt [Termes IGN] montagne [Termes IGN] parc naturel national [Termes IGN] photo-interprétation [Termes IGN] photogrammétrie numérique [Termes IGN] photographie infrarouge couleur [Termes IGN] réalité de terrain [Termes IGN] système d'information géographique Résumé : (Auteur) Detailed vegetation databases and associated maps of the Great Smoky Mountains National Park, a rugged, forested area of more than 2000 km2, were constructed to support resource management activities of the U.S. National Park Service (NPS). These detailed vegetation databases and associated maps have a terrain relief exceeding 1700 m and a continuous forest cover over 95% of the Park. The requirement to use 1:12,000 and 1:40,000scale color infrared aerial photographs as the primary data source for mapping overstory and understory vegetation, respectively, necessitated the integration of analog photointerpretation with both digital softcopy photogrammetry and geographic information system (GIS) procedures to overcome problems associated with excessive terrain relief and a lack of ground control. Applications of the vegetation database and associated largescale maps include assessments of vegetation patterns related to management activities and quantification of forest fire fuels. Copyright ISPRS Numéro de notice : A2002-282 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00118-1 En ligne : https://doi.org/10.1016/S0924-2716(02)00118-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22193 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-02042	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-02041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

DEM generation method from contour lines based on the steepest slope segment chain and a monotone interpolation function / P.O. Adriansyah in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 86 - 101 Titre : DEM generation method from contour lines based on the steepest slope segment chain and a monotone interpolation function Type de document : Article/Communication Auteurs : P.O. Adriansyah, Auteur ; R. Yokoyama, Auteur Année de publication : 2002 Article en page(s) : pp 86 - 101 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Orthophotographie, orthoimage [Termes IGN] contour [Termes IGN] interpolation [Termes IGN] méthode [Termes IGN] modèle numérique de surface [Termes IGN] pente [Termes IGN] segment de droite Résumé : (Auteur) In this paper, a method to generate a digital elevation model (DEM) from contour lines is proposed. The method is characterized by 16 search directions to find the steepest slope direction from a grid point to the nearest and second nearest contour lines, an interpolation along the steepest slope segment chain, an improved identification of slope grid points, and a monotone interpolation provided by a simple cubic Hermit function to interpolate slope grid points. Noticeable improvements are achieved in the generated DEM from the proposed method against the DEM produced by the Geological Survey Institute (GSI) of Japan. Copyright ISPRS Numéro de notice : A2002-283 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00117-X En ligne : https://doi.org/10.1016/S0924-2716(02)00117-X Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22194 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-02042	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-02041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Remote sensing for environmental protection of the eastern Mediterranean rugged mountainous areas, Lebanon / M. Khawlie in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 13 - 23 Titre : Remote sensing for environmental protection of the eastern Mediterranean rugged mountainous areas, Lebanon Type de document : Article/Communication Auteurs : M. Khawlie, Auteur ; M. Awad, Auteur ; A. Shaban, Auteur ; et al., Auteur Année de publication : 2002 Article en page(s) : pp 13 - 23 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] eau potable [Termes IGN] ERDAS Imagine [Termes IGN] érosion [Termes IGN] image ERS-SAR [Termes IGN] image Landsat-TM [Termes IGN] karst [Termes IGN] Liban [Termes IGN] modèle numérique de terrain [Termes IGN] montagne [Termes IGN] pollution des eaux [Termes IGN] protection des eaux [Termes IGN] système d'information géographique Numéro de notice : A2002-361 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00115-6 En ligne : https://doi.org/10.1016/S0924-2716(02)00115-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22272 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-02042	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-02041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Real time volcano activity mapping using ground-based digital imagery / K. Honda in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 159 - 168 Titre : Real time volcano activity mapping using ground-based digital imagery Type de document : Article/Communication Auteurs : K. Honda, Auteur ; M. Nagai, Auteur Année de publication : 2002 Article en page(s) : pp 159 - 168 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] caméra numérique [Termes IGN] cartographie des risques [Termes IGN] chambre métrique [Termes IGN] éruption volcanique [Termes IGN] modèle numérique de surface [Termes IGN] orthoimage [Termes IGN] risque naturel [Termes IGN] surveillance géologique [Termes IGN] système d'information géographique [Termes IGN] temps réel [Termes IGN] thermographie [Termes IGN] volcan Résumé : (Auteur) The mapping of volcanic activity such as lava and pyroclastic flows and mudflows on a real-time basis during eruptions is very important for event monitoring and prediction for disaster mitigation. These events are usually dynamic and of short duration. In this paper, a real-time volcanic activity mapping system utilizing a single ground-based digital camera is described. This automatic system, which produces ortho-images as a final output from digital landscape images, is designed for real-time monitoring. Each recorded image is first rectified to a reference image generated from a DEM of the volcano. This produces a textured image of known location and orientation. The rectification is carried out by matching between the common skyline edge that appears both in the digital landscape image and in the reference image. The rectified landscape image is then converted to an ortho-image map using the same DEM of the volcano. Through this system, ortho-image maps showing volcanic activity are automatically generated in real-time. This helps chronological short-term change analysis of volcanic activity. Also, volcanic activities mapped by the system can be analysed by volcanologists to assist in any disaster prevention associated with a volcanic eruption. Copyright ISPRS Numéro de notice : A2002-362 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00112-0 En ligne : https://doi.org/10.1016/S0924-2716(02)00112-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22273 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-02042	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-02041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

High-resolution 3D modelling and visualization of Mount Everest / Armin W. Gruen in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 102 - 113 Titre : High-resolution 3D modelling and visualization of Mount Everest Type de document : Article/Communication Auteurs : Armin W. Gruen, Auteur ; S. Murai, Auteur Année de publication : 2002 Article en page(s) : pp 102 - 113 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] ERDAS Imagine [Termes IGN] Everest [Termes IGN] image à haute résolution [Termes IGN] image aérienne [Termes IGN] modèle numérique de terrain [Termes IGN] modélisation 3D [Termes IGN] montagne [Termes IGN] mosaïque d'images [Termes IGN] orthoimage [Termes IGN] rendu réaliste [Termes IGN] texturage [Termes IGN] texture d'image [Termes IGN] visualisation 3D [Termes IGN] vue 3D Résumé : (Auteur) In the year 1988, a new topographical map 1:50,000 of the Mount Everest region was published by the National Geographic Society. The full map content was derived from aerial images of scale 1:35,000, acquired in a 1984 photogrammetric flight. This highly acclaimed topographical map, produced with Swiss photogrammetric and cartographic know-how, serves until nowadays as an important work of reference. We took the analogue data (images, contours), converted them into digital form through scanning, and produced a texture-mapped 3D computer model. With a DTM of 10 m grid-size and natural texture pixel-size of 1 m this model is currently the best dataset available for an area of 25 by 25 km around the summit of Mount Everest. This paper reports about the production procedure of the model and shows some high-resolution photorealistic visualization results. The dataset has been used in the meantime by cartographers and animation experts for the production of new map-related visualization products and is much sought after by scientists of various disciplines. Copyright ISPRS Numéro de notice : A2002-386 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00111-9 En ligne : https://doi.org/10.1016/S0924-2716(02)00111-9 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26410 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-02042	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-02041	RAB	Revue	Centre de documentation	En réserve L003	Disponible