Descripteur
Termes IGN > imagerie > image numérique
image numériqueSynonyme(s)image en mode mailléVoir aussi |
Documents disponibles dans cette catégorie (2557)
![](./images/expand_all.gif)
![](./images/collapse_all.gif)
Etendre la recherche sur niveau(x) vers le bas
Remote sensing based detection of minefields / B.H. Maathuis in Geocarto international, vol 18 n° 1 (March - May 2003)
![]()
[article]
Titre : Remote sensing based detection of minefields Type de document : Article/Communication Auteurs : B.H. Maathuis, Auteur Année de publication : 2003 Article en page(s) : pp 51 - 60 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] armement
[Termes IGN] guerre
[Termes IGN] image à basse résolution
[Termes IGN] image multitemporelle
[Termes IGN] image satellite
[Termes IGN] photographie aérienne
[Termes IGN] risque majeur
[Termes IGN] ZimbabweRésumé : (Auteur) In this article the use of remote sensing techniques to locate minefields over a number of selected areas in Zimbabwe is discussed, representing different types of landmine deployment, climatic zones, natural environments, etc. In order to detect the minefields use is made of indirect indicators as the detail of the images did not allow direct identification of landmines. The work conducted is focussing on the suitability of multitemporal aerial photographs and satellite images for the detection of minefields together with ancillary (conflict) information. Analysis of the images acquired showed that, even at lower spatial resolutions, but through the use of multitemporal images, important minefield related indicators could be identified, providing important information for the mine action process. For validation of the interpretations use was made of a minefield map book that was available for these border minefields. Numéro de notice : A2003-105 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040308542263 En ligne : https://doi.org/10.1080/10106040308542263 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22401
in Geocarto international > vol 18 n° 1 (March - May 2003) . - pp 51 - 60[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-03011 RAB Revue Centre de documentation En réserve L003 Disponible AIRS-AMSU-HSB on the Aqua mission: design, science objectives, data products, and processing systems / H.H. Aumann in IEEE Transactions on geoscience and remote sensing, vol 41 n° 2 (February 2003)
![]()
[article]
Titre : AIRS-AMSU-HSB on the Aqua mission: design, science objectives, data products, and processing systems Type de document : Article/Communication Auteurs : H.H. Aumann, Auteur ; M. Chahine, Auteur ; Claude Gautier, Auteur ; et al., Auteur Année de publication : 2003 Article en page(s) : pp 253 - 264 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] Advanced Microwave Sounding Unit
[Termes IGN] Atmospheric Infrared Sounder
[Termes IGN] bande infrarouge
[Termes IGN] climat terrestre
[Termes IGN] EOS
[Termes IGN] gaz
[Termes IGN] Humidity Sounder for Brazil
[Termes IGN] hydrographie
[Termes IGN] image hyperspectrale
[Termes IGN] mission spatiale
[Termes IGN] océanographie spatiale
[Termes IGN] prévision météorologique
[Termes IGN] radiomètre à hyperfréquenceRésumé : (Auteur) The Atmospheric Infrared Sounder (AIRS), the Advanced Microwave Sounding Unit (AMSU), and the Humidity Sounder for Brazil (HSB) form an integrated cross-track scanning temperature and humidity sounding system on the Aqua satellite of the Earth Observing System (EOS). AIRS is an infrared spectrometer/radiometer that covers the 3.7-15.4 um spectral range with 2378 spectral channels. AMSU is a 15-channel microwave radiometer operating between 23 and 89 GHz. HSB is a four-channel microwave radiometer that makes measurements between 150 and 190 GHz. In addition to supporting the National Aeronautics and Space Administration's interest in process study and climate research, AIRS is the first hyperspectral infrared radiometer designed to support the operational requirements for medium-range weather forecasting of the National Ocean and Atmospheric Administration's National Centers for Environmental Prediction (NCEP) and other numerical weather forecasting centers. AIRS, together with the AMSU and HSB Wcrowave radiometers, will achieve global retrieval accuracy of better than 1 K in the lower troposphere under clear and partly cloudy conditions. This paper presents an overview of the science objectives, AIRS/AMSU/HSB data products, retrieval algorithms, and the ground-data processing concepts. The EOS Aqua was launched on May 4, 2002 from Vandenberg AFB, CA, into a 705 km-high, sun-synchronous orbit. Based on the excellent radiometric and spectral performance demonstrated by AIRS during prelaunch testing, which has by now been verified during on-orbit testing, we expect the assimilation of AIRS data into the numerical weather forecast to result in significant forecast range and reliability improvements. Numéro de notice : A2003-122 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2002.808356 En ligne : https://doi.org/10.1109/TGRS.2002.808356 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22418
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 2 (February 2003) . - pp 253 - 264[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-03021 RAB Revue Centre de documentation En réserve L003 Disponible Class-guided building extraction from imagery / D. Scott Lee in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 2 (February /2003)
![]()
[article]
Titre : Class-guided building extraction from imagery Type de document : Article/Communication Auteurs : D. Scott Lee, Auteur ; Shan Jie, Auteur ; J. Bethel, Auteur Année de publication : 2003 Article en page(s) : pp 143 - 150 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] classification non dirigée
[Termes IGN] détection de contours
[Termes IGN] détection du bâti
[Termes IGN] extraction automatique
[Termes IGN] image à résolution métrique
[Termes IGN] image Ikonos
[Termes IGN] image panchromatique
[Termes IGN] milieu urbain
[Termes IGN] reconstruction 2D du bâti
[Termes IGN] transformation de HoughRésumé : (Auteur) Recent high resolution satellite images provide a valuable new data source for geospatial information acquisition. This paper addresses building extraction from Ikonos images in urban areas. The proposed approach uses the classification results of Ikonos multispectral images to provide approximate location and shape for candidate building objects. Their fine extraction is then carried out in the corresponding panchromatic image through segmentation and squaring. The ECHO classifier is used for supervised classification while the ISODATA algorithm is used for unsupervised classification and subsequent image segmentation. The classification performance is evaluated using the classification confusion matrix, while the final building extraction results are assessed based on the manually delineated results. A building squaring approach based on the Hough transformation is developed that detects and forms the rectilinear building boundaries. A number of sample results are presented to illustrate the approach and demonstrate its efficiency. It is shown that about 64.4 percent of the buildings can be detected, extracted, and accurately formed through this process. Remaining difficulties are high percentage false alarm errors caused by the misclassification of road and building classes as well as occlusion and shadows that may mislead the extraction process. Numéro de notice : A2003-011 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.2.143 En ligne : https://doi.org/10.14358/PERS.69.2.143 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22309
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 2 (February /2003) . - pp 143 - 150[article]An integrated spatial information system for the development of the archeological site of Mycenae / C. Ioannidis (2003)
![]()
Titre : An integrated spatial information system for the development of the archeological site of Mycenae Type de document : Article/Communication Auteurs : C. Ioannidis, Auteur ; Chryssy Potsiou, Auteur ; S. Soile, Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2003 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 34-5/W10 Conférence : ISPRS 2003, WG V/6 International Workshop Visualization and animation of reality-based 3D Models 24/02/2003 27/02/2003 Tarasp-Vulpera Suisse OA proceedings Importance : 8 p. Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] archéologie
[Termes IGN] diffusion de données
[Termes IGN] données localisées
[Termes IGN] données vectorielles
[Termes IGN] image numérique
[Termes IGN] orthophotographie
[Termes IGN] photographie aérienne
[Termes IGN] photographie terrestre
[Termes IGN] réalité virtuelle
[Termes IGN] site archéologique
[Termes IGN] site web
[Termes IGN] système d'information géographique
[Termes IGN] visualisation 3DRésumé : (Auteur) Digital and automated photogrammetric methods and procedures developed for the collection and management of spatial data have been well introduced on archaeological applications. The use of terrestrial laser scanning systems provides new capabilities for 3D visualization of the present situation of a site. Recently, special tools in Spatial Information Systems (SIS) and management systems of virtual world models (VR) have been developed. Their combination can provide relevant scientists and users with a variety of possibilities for the creation of integrated systems capable for documentation, restoration and cultural development of archaeological monuments and sites, with: the detailed 3D documentation of the present condition of the site, the development of a multi-purpose SIS and the introduction of modern digital products at a local museum, such as 3D representations, creation of virtual environment, Web applications. Application of these techniques and systems was made to the archaeological site of the Mycenae, one of the most important sites worldwide. Photogrammetric procedures and laser scanning were used for the data collection. Airphotos were taken by helicopter and a large number of terrestrial photos by analogue and digital cameras. Orthophoto production for the site and detailed 3D vector restitutions, horizontal plans, facades and sections were made. In addition 3D views of vector data and textural scenes were produced by automated procedures. The development of the SIS is based not only on the data and products of the photogrammetric processing, but also on various other data sources, as the structure of the system contains historic, archaeological, architectural and technical information, with texts, digital images (recent and old pictures, old graphic representations etc.), video, 2D or 3D views plans, 3D representations of particular parts of the site, visualization of tour paths. The establishing of a local museum at the Mycenae is one more challenge for applying phorogrammetric procedures, object modelling techniques with laser scanning, texture mapping, 3D representations, VR applications and Web-related issues. The paper investigates all these possibilities in relation with the data of the particular archaeological site concerning the information supply, the difficulty in demonstrating moveable findings of great value, which are exposed in other museums, and also the knowhow and the financial parameters. Numéro de notice : C2003-033 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Communication En ligne : https://www.isprs.org/proceedings/XXXIV/5-W10/papers/ioannidi.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64384
Titre : Automatic bridge detection in high-resolution satellite images Type de document : Article/Communication Auteurs : Roger Trias-Sanz , Auteur ; Nicolas Lomenie, Auteur
Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2003 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 2626 Conférence : ICVS 2003, 3rd International Conference Computer Vision Systems 01/04/2003 03/04/2003 Graz Autriche Proceedings Springer Importance : pp 172 - 181 Note générale : bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] classification par réseau neuronal
[Termes IGN] détection d'objet
[Termes IGN] extraction de traits caractéristiques
[Termes IGN] image à haute résolution
[Termes IGN] image panchromatiqueRésumé : (auteur) A set of methodologies and techniques for automatic detection of bridges in pan-chromatic, high-resolution satellite images is presented. These methods rely on (a) radiometric features and neural networks to classify each pixel into several terrain types, and (b) fixed rules to find bridges in this classification. They can be easily extended to other kinds of geographical objects, and integrated with existing techniques using geometric features. The proposed method has been tested in a number of experiments. Numéro de notice : C2003-046 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/3-540-36592-3_17 Date de publication en ligne : 14/03/2003 En ligne : https://doi.org/10.1007/3-540-36592-3_17 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101126 PermalinkLa chaine de fusion des données SPOT 5 / Christophe Latry in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 169 (Janvier 2003)
PermalinkConception et mise en place d'un polygone d'étalonnage des caméras numériques sur le site de l'école nationale des sciences géographiques / S. Oueslati (2003)
PermalinkDevelopment and calibration of the airborne three-line scanner (TLS) imaging system / Tianen Chen in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 1 (January 2003)
PermalinkPermalinkEvaluations thématiques et statistiques de cinq algorithmes de fusion P-XS sur des simulations d'images Pléiades-HR / H. De Boissezon in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 169 (Janvier 2003)
PermalinkEvolution et amélioration du traitement géométrique des produits Spot 1 à 4 / Laure Chandelier (2003)
PermalinkExploitation des images RSO multi-temporelles et multi-incidences dans une zone urbaine / A. Boudyaf (2003)
PermalinkExtracting 3D free-form surface boundaries of man-made objects from multiple calibrated images : a robust, accurate and high resolving power edgel matching and chaining approach / Franck Jung (2003)
![]()
PermalinkFusion de données multi résolution et multi temporelle par la pyramide morphologique : application à la fusion SPOT 4 HRVIR - Végétation / Florence Laporterie-Dejean in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 169 (Janvier 2003)
Permalink