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The EuroSDR project "radiometric aspects of digital photogrammetric images" : results of the empirical phase / Eija Honkavaara (01/06/2011)
Titre : The EuroSDR project "radiometric aspects of digital photogrammetric images" : results of the empirical phase Type de document : Article/Communication Auteurs : Eija Honkavaara, Auteur ; Roman Arbiol, Auteur ; Lauri Markelin, Auteur ; Lucas Martinez, Auteur ; Mathieu Brédif , Auteur ; Laure Chandelier , Auteur ; Lâmân Lelégard , Auteur ; et al., Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 01/06/2011 Conférence : ISPRS 2011, High-Resolution Earth Imaging for Geospatial Information workshop 14/06/2011 17/06/2011 Hanovre Allemagne OA ISPRS Archives Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] ADS40
[Termes IGN] DMC
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] étalonnage géométrique
[Termes IGN] étalonnage radiométrique
[Termes IGN] réflectance
[Termes IGN] uniformisation d'histogrammeRésumé : (Auteur) This article presents the empirical research carried out in the context of the multi-site EuroSDR project “Radiometric aspects of digital photogrammetric images” and provides highlights of the results. The investigations have considered the vicarious radiometric and spatial resolution validation and calibration of the sensor system, radiometric processing of the image blocks either by performing relative radiometric block equalization or into absolutely reflectance calibrated products, and finally aspects of practical applications on NDVI layer generation and tree species classification. The data sets were provided by Leica Geosystems ADS40 and Intergraph DMC and the participants represented stakeholders in National Mapping Authorities, software development and research. The investigations proved the stability and quality of evaluated imaging systems with respect to radiometry and optical system. The first new-generation methods for reflectance calibration and equalization of photogrammetric image block data provided promising accuracy and were also functional from the productivity and usability points of view. The reflectance calibration methods provided up to 5% accuracy without any ground reference. Application oriented results indicated that automatic interpretation methods will benefit from the optimal use of radiometrically accurate multi-view photogrammetric imagery. Numéro de notice : C2011-054 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE Nature : Communication DOI : 10.5194/isprsarchives-XXXVIII-4-W19-123-2011 Date de publication en ligne : 07/09/2012 En ligne : http://dx.doi.org/10.5194/isprsarchives-XXXVIII-4-W19-123-2011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64373 Aerial surveying at airports: STI's two recent projects / Matteo Luccio in Geoinformatics, vol 14 n° 1 (01/01/2011)
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Titre : Aerial surveying at airports: STI's two recent projects Type de document : Article/Communication Auteurs : Matteo Luccio, Auteur Année de publication : 2011 Article en page(s) : pp 24 - 26 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aéroport
[Termes IGN] image aérienne
[Termes IGN] image numérique
[Termes IGN] restitution
[Termes IGN] UltraCamRésumé : (Auteur) Société Topographie Informatique (STI) - based in Evry, near Paris, France - specializes in topography, photogrammetry, and aerial photography. After purchasing the UltraCamL, STI won a contract to fly Charles de Gaulle and Orly airports in Paris. Its success with the two challenging airport projects helped the company establish a reputation in the industry that is leading to more business and has positioned it a key player in the aerial survey market. Numéro de notice : A2011-020 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30802
in Geoinformatics > vol 14 n° 1 (01/01/2011) . - pp 24 - 26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-2011011 SL Revue Centre de documentation Revues en salle Disponible A low-cost multi-sensoral mobile mapping system and its feasibility for tree measurements / Anttoni Jaakkola in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 6 (November - December 2010)
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Titre : A low-cost multi-sensoral mobile mapping system and its feasibility for tree measurements Type de document : Article/Communication Auteurs : Anttoni Jaakkola, Auteur ; Antero Kukko, Auteur ; X. Yu, Auteur ; Juha Hyyppä, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 514 - 522 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] arbre (flore)
[Termes IGN] capteur aérien
[Termes IGN] chambre DTC
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] drone
[Termes IGN] géoréférencement direct
[Termes IGN] GPS-INS
[Termes IGN] lasergrammétrie
[Termes IGN] lidar topographique
[Termes IGN] rayonnement infrarouge thermique
[Termes IGN] semis de points
[Termes IGN] spectromètre
[Termes IGN] système de numérisation mobile
[Termes IGN] télémètre laser aéroporté
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) This paper presents a novel low-cost mini-UAV-based laser scanning system, which is also capable of performing car-based mobile mapping. The quality of the system and its feasibility for tree measurements was tested using the system’s laser scanner. The system was constructed as a modular measurement system consisting of a number of measurement instruments: a GPS/IMU positioning system, two laser scanners, a CCD camera, a spectrometer and a thermal camera. An Ibeo Lux and a Sick LMS151 profile laser were integrated into the system to provide dense point clouds; intensities of the reflected echoes can also be obtained with the Sick LMS. In our tests, when using a car as a platform, the pole-type object extraction algorithm which was developed resulted in 90% completeness and 86% correctness. The heights of pole-type objects were obtained with a bias of -1.6 cm and standard deviation of 5.4 cm. Using a mini-UAV as the platform, the standard deviation of individual tree heights was about 30 cm. Also, a digital elevation model extraction was tested with the UAV data, resulting in a height offset of about 3.1 cm and a standard deviation of 9.2 cm. With a multitemporal point cloud, we demonstrated a method to derive the biomass change of a coniferous tree with an R2 value of 0.92. The proposed system is capable of not only recording point cloud data giving the geometry of the objects, but also simultaneously collecting image data, including overlapping images and the intensity of laser backscatter, as well as hyperspectral and thermal data. Therefore we believe that the system is feasible for new algorithm and concept development and for basic research, especially when data is recorded multitemporally. Numéro de notice : A2010-484 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2010.08.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2010.08.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30677
in ISPRS Journal of photogrammetry and remote sensing > vol 65 n° 6 (November - December 2010) . - pp 514 - 522[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2010061 SL Revue Centre de documentation Revues en salle Disponible Digital imagery for coastal monitoring / M. Cotchin in GEO: Geoconnexion international, vol 9 n° 8 (september 2010)
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Titre : Digital imagery for coastal monitoring Type de document : Article/Communication Auteurs : M. Cotchin, Auteur Année de publication : 2010 Article en page(s) : pp 44 - 45 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse diachronique
[Termes IGN] érosion côtière
[Termes IGN] habitat (urbanisme)
[Termes IGN] image aérienne
[Termes IGN] rayonnement proche infrarouge
[Termes IGN] risque naturel
[Termes IGN] Royaume-Uni
[Termes IGN] surveillance du littoral
[Termes IGN] UltraCamRésumé : (Auteur) Innovative use of digital camera technology provides the UK environment agency with additional datasets for habitat mapping. Numéro de notice : A2010-343 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30537
in GEO: Geoconnexion international > vol 9 n° 8 (september 2010) . - pp 44 - 45[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 062-2010081 SL Revue Centre de documentation Revues en salle Disponible Radiometric stability assessment of an airborne photogrammetric sensor in a test field / Lauri Markelin in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 4 (July - August 2010)
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Titre : Radiometric stability assessment of an airborne photogrammetric sensor in a test field Type de document : Article/Communication Auteurs : Lauri Markelin, Auteur ; Eija Honkavaara, Auteur ; Teemu Hakala, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 409 - 421 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] capteur aérien
[Termes IGN] chambre métrique
[Termes IGN] DMC
[Termes IGN] étalonnage radiométriqueRésumé : (Auteur) Radiometric stability is a desired property of digital photogrammetric large-format sensors. This article presents a methodology for determining the radiometric stability of airborne imaging sensors in operational conditions in a test field and the results of stability evaluation of a large-format photogrammetric frame sensor DMC, from Intergraph. The imagery was collected in two days using nine different exposure settings, and images collected with variable exposure time and aperture were compared. The results showed promising stability in many cases, up to a level of 2% of the radiance, but less favorable results also appeared. Possible reasons for the unfavorable results could be the limitations of the experimental set-up or the instability of the sensor. DMC showed high radiometric performance potential, but high sensitivity to the exposure settings. Based on the results, recommendations for the future test field calibration and validation procedures were given. One limitation of the analysis was the insufficient information about the sensor stability potential; proposals were given to sensor manufacturers concerning the necessary information. Numéro de notice : A2010-300 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2010.05.003 En ligne : https://doi.org/10.1016/j.isprsjprs.2010.05.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30494
in ISPRS Journal of photogrammetry and remote sensing > vol 65 n° 4 (July - August 2010) . - pp 409 - 421[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2010041 SL Revue Centre de documentation Revues en salle Disponible The Intergraph DMC 2 camera range: new large-format airborne digital frame cameras / Gordon Petrie in Geoinformatics, vol 13 n° 5 (01/07/2010)PermalinkDie Entwicklung photogrammetrischer Verfahren und Instrumente bei Carl Zeiss in Oberkochen / Dierk Hobbie (2010)PermalinkPermalinkTesting aerial digital cameras / R. Kathofer in GIM international, vol 24 n° 1 (January 2010)PermalinkSensor modelling and validation for linear array aerial and satellite imagery / Sultan Aksakal Kocaman (2009)PermalinkDMC geometry analysis and virtual image characterisation / R. Alamus in Photogrammetric record, vol 23 n° 124 (December 2008 - February 2009)PermalinkRadiometric calibration and characterization of large-format digital photogrammetric sensors in a test field / Lauri Markelin in Photogrammetric Engineering & Remote Sensing, PERS, vol 74 n° 12 (December 2008)PermalinkVexcel imaging's ultramap platform / A. Wiechert in Geoinformatics, vol 11 n° 4 (01/06/2008)PermalinkIn-flight geometric calibration of different cameras of IRS-P6 using a physical sensor model / P. Radhadevi in Photogrammetric record, vol 23 n° 121 (March - May 2008)PermalinkEléments de physique pour l'imagerie aérienne et spatiale et la géodésie [diaporama pour le master PPMD] / Michel Kasser (2008)Permalink