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The soil moisture and ocean salinity (SMOS) mission: first results and achievements / Yann H. Kerr in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 12 - 19 Titre : The soil moisture and ocean salinity (SMOS) mission: first results and achievements Type de document : Article/Communication Auteurs : Yann H. Kerr, Auteur ; P. Waldteufel, Auteur ; Jean-Pierre Wigneron, Auteur ; J. Boutin, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 12 - 19 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Missions spatiales [Termes IGN] aérosol [Termes IGN] bande L [Termes IGN] humidité du sol [Termes IGN] hydrosphère [Termes IGN] image SMOS [Termes IGN] océanographie spatiale [Termes IGN] salinité Résumé : (Auteur) The SMOS (Soil Moisture and Ocean Salinity) satellite was successfully launched in November 2009. This ESA led mission for Earth Observation is dedicated to providing soil moisture over continental surface (with an accuracy goal of 0.04 nf/nf) and ocean salinity (with a goal of 0.1 psu). These two geophysical features are important as they control the energy balance between the surface and the atmosphere. Their knowledge is of interest at global scales for climatic and weather research in particular for improving model forecasts. But it also has impact on various domains, ranging from hurricane monitoring to water resource management. The first six months after the launch, the so called commissioning phase, was dedicated to testing the functionalities of the spacecraft, the instrument and the ground segment including data processing. This phase was successfully completed in May 2010, and SMOS has since been in the routine operation phase, providing data products for the scientific community for over two years. The instrument performance and data quality fit the specifications. However, radio frequency interferences have been detected over large parts of Europe, China, Southern Asia, and the Middle East. The generation of Level 2 soil moisture and ocean salinity data is an on-going activity with continuously improved processings. Numéro de notice : A2012-563 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : 10.52638/rfpt.2012.57 En ligne : https://doi.org/10.52638/rfpt.2012.57 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32009 [article]

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HYPXIM, an innovative spectroimager for science, security and defence requirements / M.J. Lefevre-Fonollosa in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 20 - 27 Titre : HYPXIM, an innovative spectroimager for science, security and defence requirements Type de document : Article/Communication Auteurs : M.J. Lefevre-Fonollosa, Auteur ; S. Michel, Auteur ; S. Hosford, Auteur Année de publication : 2012 Article en page(s) : pp 20 - 27 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Missions spatiales [Termes IGN] acquisition d'images [Termes IGN] acquisition de données [Termes IGN] bande infrarouge [Termes IGN] HYPXIM [Termes IGN] image à haute résolution [Termes IGN] image hyperspectrale [Termes IGN] plateforme Résumé : (Auteur) This paper provides an overview of hyperspectral applications and data requirements gathered by an ad-hoc group of French scientists and Defence users. This group known by the acronym GSH (Groupe de Synthese sur I'Hyperspectral) has addressed clear and detailed technical requirements for a high spatial resolution hyperspectral mission on the following themes: study of vegetation, coastal and inland water ecosystems, geosciences, urban environment, atmospheric studies, security, and Defence. The synthesis of these requirements substantially helped to set up consolidated space-based system requirements (i.e. mission requirements) in terms of spectral domain, spectral resolution, signal-to-noise ratio, spatial resolution, swath and revisiting period, which revealed the main key drivers for the design of a very innovative hyperspectral space instrument. HYPXIM is a new-generation hyperspectral concept which meets the needs of a wide community of users in the world. During the phase 0, CNES with the support of industry (Astrium et Thales Alenia Space) has compared two different scenarii. The first scenario, named HYPXIM-C, aims at finding out the highest possible resolution level (15 m) achievable using a microsatellite platform, whereas the goals of the second scenario, called HYPXIM-P, are to reach a higher spatial resolution (8 m), and to provide a TIR hyperspectral capability. The HYPXIM phase A was recently decided and focused on the most performing concept, but without TIR capabilities. The challenges for the selected HYPXIM mission were to design an agil high resolution spectroimager on a mini-satellite. Preliminary studies with industrial support show that this challenge can be taken to space around 2020/21 depending on the development of critical technologies (like specific detectors). Expected lifetime in orbit is 10 years, including end-of-life operations. Numéro de notice : A2012-564 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : 10.52638/rfpt.2012.58 En ligne : https://doi.org/10.52638/rfpt.2012.58 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32010 [article]

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The Pleiades system: High resolution capability suited to users needs / P. Kubik in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 28 - 35 Titre : The Pleiades system: High resolution capability suited to users needs Type de document : Article/Communication Auteurs : P. Kubik, Auteur ; H. Boissezon, Auteur ; Claire Tinel, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 28 - 35 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Missions spatiales [Termes IGN] image à haute résolution [Termes IGN] image à résolution métrique [Termes IGN] image Pléiades-HR [Termes IGN] observation de la Terre [Termes IGN] Pleiades-HR [Termes IGN] satellite agile [Termes IGN] stéréoscopie Résumé : (Auteur) The successful launch of Pleiades 1A on the night of 16th to 17th December 2011 is a long-awaited milestone for the users of satellite images. This satellite is operated in a dual-purpose Earth observation system providing high resolution optical images to satisfy the new mission requirements of both defence users and civilian stakeholders (institutions, scientists, etc.). The optical mission consists in Earth optical observation composed of 0.7 m nadir resolution for the panchromatic band and 2.8 m nadir resolution for the four multi-spectral bands. The image swath is about 20 km. The system is based on the use of a set of newly developed European technologies to feature the satellite. Thanks to the huge satellite agility obtained with control momentum gyros as actuators, the optical system also delivers instantaneous stereo images, under different stereoscopic conditions, and mosaic images, issued from along the track thus enlarging the field of view. The system commissioning phase that ran from the launch until march 2012 was dedicated to checking every single piece of equipment in the satellite and every system function, in order to characterize, tune and calibrate all the models that are required to assess the expected behaviour and performances. The thematic assessment of Pleiades data had been prepared since 2007 in the framework of the ORFEO program, gathering many user organisations (IGN, BRGM, INRA, CNRS, Cemagref, CIRAD) and service providers (Astrium Geo-lnformation Services, ACRI, SERTIT). Numéro de notice : A2012-565 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : 10.52638/rfpt.2012.59 Date de publication en ligne : 19/04/2014 En ligne : https://doi.org/10.52638/rfpt.2012.59 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32011 [article]

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The SETHI remote sensing airborne platform and the related science activities / Pascal Fernandez in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 36 - 47 Titre : The SETHI remote sensing airborne platform and the related science activities Type de document : Article/Communication Auteurs : Pascal Fernandez, Auteur ; O. Ruault Du Duplessis, Auteur ; A. Arnaubec, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 36 - 47 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] bande P [Termes IGN] bande X [Termes IGN] biomasse [Termes IGN] biomasse (combustible) [Termes IGN] instrument aéroporté [Termes IGN] radar à antenne synthétique [Termes IGN] visée oblique [Termes IGN] visée verticale Résumé : (Auteur) ONERA, the French Aerospace Lab, has been designing airborne radar for more than two decades for Defence oriented applications, as well as for science applications. In the past six years, the SETHI instrument, hosted on board a Falcon 20 aircraft, has been developed with a main focus on science applications. In this paper, the philosophy of this development is highlighted together with a detailed description of the instruments. The SETHI instrument includes three SAR systems at P, L and X bands, one context camera in the visible domain, with a side looking geometry matching the radar field of view, and a hyperspectral camera with standard nadir geometry. The paper then summarises the latest SETHI campaigns in the context of two spaceborne mission preparations. The first is the ESA BIOMASS mission with a P-Band SAR instrument for global forest biomass mapping. The second one is a maritime surveillance mission, including an X-band SAR system. For each campaign, the main objectives are listed, the references to the dedicated papers are provided and the major results are highlighted. Finally the paper then provides a preview for the future developments around the SETHI system, for studies dedicated to the optical/radar data fusion. Numéro de notice : A2012-566 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.52638/rfpt.2012.60 Date de publication en ligne : 19/04/2014 En ligne : https://doi.org/10.52638/rfpt.2012.60 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32012 [article]

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A large format camera for national mapping purposes / Jean-Philippe Souchon in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 48 - 53 Titre : A large format camera for national mapping purposes Type de document : Article/Communication Auteurs : Jean-Philippe Souchon , Auteur ; Christian Thom , Auteur ; Christophe Meynard , Auteur ; Olivier Martin , Auteur Année de publication : 2012 Projets : CAMNU / Article en page(s) : pp 48 - 53 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] caméra numérique [Termes IGN] colorimétrie [Termes IGN] géoréférencement direct [Termes IGN] longueur focale Résumé : (Auteur) IGN CAMv2 project started in 2006 and is composed of two main steps. At first, a four-channel medium format camera system was developed. The basic element of this new system is a camera head built around the Kodak KAF-39 000, 39 mega-pixel array sensor (7,216 x 5,412 pixels). Three systems in this medium format colour configuration, with four nadir-viewing camera heads (RGB and Near-lnfrared-NIR), operated for IGN national orthophotography production, during the summer 2009. Thanks to the versatile and modular aspect of the new camera system, the second step of our project was reachable: gathering eight camera heads on the same gyro-stabilised mount in order to achieve 155 megapixels pan-sharpened images with a pan-sharpening ratio of 2 x 2, and a final swath width of about 14,400 pixels. This large format configuration has been designed with two combinations of focal lengths. A 45-90 mm version allows 3D city models acquisition, and a 60-120 mm version for orthophotography acquisition. Good realistic colorimetric quality is obtained with this camera system thanks to specially designed colour filters. This system can be linked to a FMS/INS in order to obtain a direct geo-referencing of images, and the user friendliness for the operators of a state-of-the-art flight management software. Numéro de notice : A2012-567 Affiliation des auteurs : LASTIG LOEMI (2012-2019) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : 10.52638/rfpt.2012.61 Date de publication en ligne : 19/04/2014 En ligne : https://doi.org/10.52638/rfpt.2012.61 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32013 [article]

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Airborne lidar for natural environments: research and applications in France / C. Puech in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 54 - 68 Titre : Airborne lidar for natural environments: research and applications in France Type de document : Article/Communication Auteurs : C. Puech, Auteur ; Sylvie Durrieu, Auteur ; Jean-Stéphane Bailly, Auteur Année de publication : 2012 Article en page(s) : pp 54 - 68 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] géomorphologie [Termes IGN] Lidar [Termes IGN] lidar à retour d'onde complète [Termes IGN] modèle numérique de surface [Termes IGN] télémètre laser aéroporté [Termes IGN] traitement du signal [Termes IGN] végétation Résumé : (Auteur) This paper is a review of various research works in France on airborne LiDAR applied to the monitoring of natural environment. Firstly, it presents applications based on the use of very high-resolution digital surface models derived from LiDAR data. The use of such models is quickly expanding on all the fields related to the environment. This article also discusses more specific research on signal processing and accuracy. Part of this work summarizes papers that were published in the "Revue Française de Photogrammétrie et de Télédétection (RFPT)", the French Journal of Photogrammetry and Remote Sensing, following two national conferences organized in Montpellier (2006) and Le Mans (2009) in order to invite researchers using LiDAR in several fields of application to initiate technical and scientific exchanges. We also provide an update on ongoing research and instrument developments in France. Numéro de notice : A2012-568 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.52638/rfpt.2012.62 Date de publication en ligne : 19/04/2014 En ligne : https://doi.org/10.52638/rfpt.2012.62 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32014 [article]

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Stereopolis 2: A multi-purpose and multi-sensor 3D mobile mapping system for street visualisation and 3D metrology / Nicolas Paparoditis in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 69 - 79 Titre : Stereopolis 2: A multi-purpose and multi-sensor 3D mobile mapping system for street visualisation and 3D metrology Type de document : Article/Communication Auteurs : Nicolas Paparoditis , Auteur ; Jean-Pierre Papelard , Auteur ; Bertrand Cannelle , Auteur ; Alexandre Devaux , Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 69 - 79 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] chambre à grand format [Termes IGN] données localisées 3D [Termes IGN] données multicapteurs [Termes IGN] étalonnage de capteur (imagerie) [Termes IGN] lasergrammétrie [Termes IGN] stéréoscopie [Termes IGN] système de numérisation mobile Résumé : (Auteur) In this paper, we present a hybrid image/laser multi-sensor mobile mapping system allowing to capture a spatial data infrastructure which is compliant with several applications ranging from multimedia immersive visualisation to 3D metrology across the web. We detail the design of the system, its sensors, its architecture, and its calibration. We also present a web-based service on the acquired data that allows immersive street navigations but also 3D plotting tools that can allow a client to enrich his own databases. We also address some data processing issues related to privacy, i.e. pedestrian and car plate detection and blurring, that are mandatory for the dissemination of data through web-based consumer applications. Numéro de notice : A2012-569 Affiliation des auteurs : MATIS (1993-2011) Thématique : IMAGERIE Nature : Article DOI : 10.52638/rfpt.2012.63 Date de publication en ligne : 19/04/2014 En ligne : https://doi.org/10.52638/rfpt.2012.63 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32015 [article]

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An overview of close-range photogrammetry in France / Raphaële Heno in Revue Française de Photogrammétrie et de Télédétection, n° 200 (Novembre 2012)  

Public [article]  inRevue Française de Photogrammétrie et de Télédétection > n° 200 (Novembre 2012) . - pp 80 - 87 Titre : An overview of close-range photogrammetry in France Type de document : Article/Communication Auteurs : Raphaële Heno , Auteur ; Yves Egels , Auteur ; Christian Heipke, Auteur ; Pierre Grussenmeyer, Auteur Année de publication : 2012 Article en page(s) : pp 80 - 87 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre [Termes IGN] histoire de la cartographie [Termes IGN] lasergrammétrie [Termes IGN] patrimoine culturel [Termes IGN] patrimoine immobilier [Termes IGN] photogrammétrie métrologique [Termes IGN] photographie terrestre Résumé : (Auteur) There are several approaches which can be adopted to present close-range photogrammetry in France: historical, eco-nomic, technical, or by field of application. The paper starts with a short account of the history of close-range photogram-metry. It then presents notable technical progress and its impact on users (the digital era, the laser scanners, and recently the fully automatic tools), and it finally shows the democratization of photogrammetry. The whole paper is mainly focused on cultural heritage applications. Numéro de notice : A2012-570 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : IMAGERIE Nature : Article DOI : 10.52638/rfpt.2012.64 Date de publication en ligne : 19/04/2014 En ligne : https://doi.org/10.52638/rfpt.2012.64 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32016 [article]

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