Descripteur
Termes IGN > sciences naturelles > physique > métrologie > étalonnage > étalonnage d'instrument > étalonnage de capteur (imagerie) > étalonnage radiométrique
étalonnage radiométrique |
Documents disponibles dans cette catégorie (119)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
The IGN CAMv2 system / Jean-Philippe Souchon in Photogrammetric record, vol 25 n° 132 (December 2010 - February 2011)
[article]
Titre : The IGN CAMv2 system Type de document : Article/Communication Auteurs : Jean-Philippe Souchon , Auteur ; Christian Thom , Auteur ; Christophe Meynard , Auteur ; Olivier Martin , Auteur ; Marc Pierrot-Deseilligny , Auteur Année de publication : 2010 Article en page(s) : pp 402 - 421 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] étalonnage géométrique
[Termes IGN] étalonnage radiométrique
[Termes IGN] image multibande
[Termes IGN] image RVB
[Termes IGN] instrumentation IGN
[Termes IGN] pansharpening (fusion d'images)
[Termes IGN] prise de vue aérienneRésumé : (Auteur) After 10 years of pioneering aerial digital camera development, IGN’s CAMv2 project began in 2006 with the main goal of upgrading the then current system. This had been used for research applications since 1996 in more than six different configurations and in production since 2003 configured with four coloured channels. The new system is still highly modular, enabling combinations of several “basic components”, each consisting of one digital camera head with its storage and control unit. The new camera head was developed around the Kodak KAF-39 000, 39-megapixel array sensor (7216 x 5412 pixels). The system is also very versatile thanks to the possible choice of more than 10 different lenses (from 35 mm up to 180 mm focal length) and interchangeable spectral filters. The mechanical and electronic designs have been reduced in size so as to permit many different configurations including multiple camera heads on the same gyro-stabilised mount. The combination of the performance of camera heads and control and storage units allows a frame rate of one image per 2 s with storage redundancy and 1 s without, leading to a minimum ground sample distance (GSD) of about 9 cm with 60% overlap at an airspeed of 100 m/s. In order to use the new system to best advantage, the adjustment and calibration processes had to be improved. During the summer of 2009, three systems configured for colour imagery, each using four nadir-viewing camera heads (RGB and NIR), were used to acquire images for IGN production work. In January 2009, an eight-camera-head configuration was tested in order to achieve 155-megapixel pan-sharpened images with a pan-sharpening ratio of 2 x 2, and a final swath width of about 14 400 pixels. At that time this configuration needed two windows in the aircraft, but it is now installed on a single, bigger mount. Numéro de notice : A2010-533 Affiliation des auteurs : LOEMI (1985-2011) Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2010.00601.x Date de publication en ligne : 22/12/2010 En ligne : https://doi.org/10.1111/j.1477-9730.2010.00601.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30725
in Photogrammetric record > vol 25 n° 132 (December 2010 - February 2011) . - pp 402 - 421[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-2010041 RAB Revue Centre de documentation En réserve L003 Disponible Radiometric calibration of small-footprint full-waveform airborne laser scanner measurements: Basic physical concepts / W. Wagner in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 6 (November - December 2010)
[article]
Titre : Radiometric calibration of small-footprint full-waveform airborne laser scanner measurements: Basic physical concepts Type de document : Article/Communication Auteurs : W. Wagner, Auteur Année de publication : 2010 Article en page(s) : pp 505 - 513 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] étalonnage d'instrument
[Termes IGN] étalonnage radiométrique
[Termes IGN] lidar à retour d'onde complète
[Termes IGN] signal laserRésumé : (Auteur) Small-footprint (0.2–2 m) airborne laser scanners are lidar instruments originally developed for topographic mapping. While the first airborne laser scanners only allowed determining the range from the sensor to the target, the latest sensor generation records the complete echo waveform. The waveform provides important information about the backscattering properties of the observed targets and may be useful for geophysical parameter retrieval and advanced geometric modelling. However, to fully utilise the potential of the waveform measurements in applications, it is necessary to perform a radiometric calibration. As there are not yet calibration standards, this paper reviews some basic physical concepts commonly used by the remote sensing community for modelling scattering and reflection processes. Based purely on theoretical arguments it is recommended to use the backscattering coefficient ?, which is the backscatter cross-section normalised relative to the laser footprint area, for the radiometric calibration of small-footprint full-waveform airborne laser scanners. The presented concepts are, with some limitations, also applicable to conventional airborne laser scanners that measure the range and intensity of multiple echoes. Numéro de notice : A2010-483 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2010.06.007 En ligne : https://doi.org/10.1016/j.isprsjprs.2010.06.007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30676
in ISPRS Journal of photogrammetry and remote sensing > vol 65 n° 6 (November - December 2010) . - pp 505 - 513[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-2010061 SL Revue Centre de documentation Revues en salle Disponible Spectroscopic calibration correlation of field and lab-sized fluorescence LIDAR systems / B. Déry in IEEE Transactions on geoscience and remote sensing, vol 48 n° 9 (September 2010)
[article]
Titre : Spectroscopic calibration correlation of field and lab-sized fluorescence LIDAR systems Type de document : Article/Communication Auteurs : B. Déry, Auteur ; S. Buteau, Auteur ; J.P. Simard, Auteur ; R. Vallée, Auteur Année de publication : 2010 Article en page(s) : pp 3580 - 3586 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] aérosol
[Termes IGN] étalonnage radiométrique
[Termes IGN] fluorescence
[Termes IGN] Lidar
[Termes IGN] réponse spectrale
[Termes IGN] signature spectraleRésumé : (Auteur) A method has been developed to correlate spectral signatures obtained with various fluorescence LIght Detection And Ranging (LIDAR) systems. A calibrated fluorescence reference target was used to calibrate the spectral response of the LIDAR transmitter channels and obtain their transfer functions. Two LIDAR systems have been spectrally characterized, and corrected signatures for two bioaerosols are presented. The first LIDAR system is the Standoff Integrated Bioserosol Active Hyperspectral Detection field LIDAR developed by Defence R&D Canada. This standoff system uses a 351-nm pulsed laser in a monoaxial design. The second system is a lab-sized aerosol chamber designed to characterize fluorescent aerosols under controlled environmental conditions. The chamber was designed according to classical short-range biaxial LIDAR principles, with the purpose of duplicating the results obtained with field LIDAR systems. Aerosols generated within the chamber are probed by a 355-nm pulsed laser, and autofluorescence spectra are measured with a spectrometer and an intensified charge-coupled device camera. This chamber is used to collect the reference spectra of various fluorescing aerosols and simulants of biological agents. One of the main objectives in using this chamber is to produce and compile a library of instrument-free fluorescing spectra that can be transferred to other LIDAR-based bioaerosol sensors with known optical transfer functions. Numéro de notice : A2010-573 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2010.2046906 En ligne : https://doi.org/10.1109/TGRS.2010.2046906 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30764
in IEEE Transactions on geoscience and remote sensing > vol 48 n° 9 (September 2010) . - pp 3580 - 3586[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-2010091 RAB Revue Centre de documentation En réserve L003 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)
[article]
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]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-2010041 SL Revue Centre de documentation Revues en salle Disponible
Titre : Commission 1: Performance of medium format digital airborne cameras Type de document : Chapitre/Contribution Auteurs : Görres Grenzdorffer, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2010 Collection : EuroSDR official publication, ISSN 0257-0505 num. 58 Importance : pp 233 - 266 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] chambre à moyen format
[Termes IGN] étalonnage géométrique
[Termes IGN] étalonnage radiométrique
[Termes IGN] instrument aéroportéRésumé : (auteur) The report describes digital medium format cameras as professional systems, used for airborne mapping applications. In the last two years, the term "medium format" does not stand for a single camera, equipped with a CCD-chip fitting in the former 6 * 6 cm medium format camera bodies anymore. The newly introduced "medium format" systems from Microsoft and Z/I generate images of nearly the same footprint as the first generation large format cameras. Also multi head medium format systems provide the same footprint of a large format camera system. Therefore a new category has to be introduced: the intermediate systems. Nevertheless the key advantages of medium format systems, compared to large format systems is a lower price and a big plus in terms of flexibility due to low weight and interchangeable lenses. Due to their flexibility medium format system are used for a wide range of applications. Medium format systems are most successful for local projects as well as for oblique imagery. The largest proportion of medium format cameras are used as a sub-system of integrated airborne data acquisition platforms consisting of laser scanners. Nowadays digital medium format camera systems are mature airborne systems with high reliability. With the increasing demand of “near-online” digital aerial data these systems will become even more popular in the future. Note de contenu : 1. INTRODUCTION
1.1 Objectives of this report
2. CATEGORIZATION OF DIGITAL MEDIUM FORMAT CAMERA SYSTEMS
2.1 Developments of medium format cameras in the last two years
3. COMPARISON OF MEDIUM FORMAT CAMERAS TO LARGE FORMAT CAMERAS
3.1 Geometric Potential
3.2 Minimum GSD of medium format cameras
3.3 Image motion
4. GEOMETRIC AND RADIOMETRIC CALIBRATION
4.1 Geometric calibration
4.2 Geometric performance of medium format - Results of the DGPF-Testbed
4.3 Radiometric accuracy and calibration
5. STANDARDIZATION
6. APPLICATION DOMAINS
7. MARKET SURVEY OF MEDIUM FORMAT CAMERA SYSTEMS
7.1 RMK-D
7.2 Trimble / Applanix DSS ? 439
7.3 Trimble AIC
7.4 DigiCAM- (H39 / H50 / H60)
7.5 DiMAC - (Digital Modular Aerial Camera)
7.6 Leicas RCD medium format cameras
7.7 UltraCamLp
8.1 CURRENT TRENDS AND OUTLOOK FOR MEDIUM FORMAT CAMERA SYSTEMS
8. Rapid processing .
8.2 Multi head systems
8.3 Forward-motion compensation (FMC)
8.4 Oblique Images
8.5 Increase in image size
9. ACKNOWLEDGMENTS
10. REFERENCESNuméro de notice : H2010-004 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Chapître / contribution Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86302 Documents numériques
en open access
H2010-004_Commission 1: Performance of medium format digital airborne camerasAdobe Acrobat PDF A procedure for radiometric recalibration of Landsat 5 TM reflective-band data / Gyanesh Chander in IEEE Transactions on geoscience and remote sensing, vol 48 n° 1 Tome 2 (January 2010)PermalinkCalibration of PRISM and AVNIR-2 onboard ALOS Daichi / T. Tadono in IEEE Transactions on geoscience and remote sensing, vol 47 n° 12 Tome 1 (December 2009)PermalinkPALSAR radiometric and geometric calibration / M. Shimada in IEEE Transactions on geoscience and remote sensing, vol 47 n° 12 Tome 1 (December 2009)PermalinkRadiometric Calibration of LIDAR Intensity With Commercially Available Reference Targets / S. Kaasalainen in IEEE Transactions on geoscience and remote sensing, vol 47 n° 2 (February 2009)PermalinkDigital photogrammetry / W. Linder (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)PermalinkImagerie spatiale / P. Lier (2008)PermalinkBidirectional reflectance spectrometry of gravel at the Sjökulla test field / J. Peltoniemi in ISPRS Journal of photogrammetry and remote sensing, vol 62 n° 6 (November-December 2007)PermalinkThe impact of relative radiometric calibration on the accuracy of kNN-predictions of forest attributes / T. Koukal in Remote sensing of environment, vol 110 n° 4 (30/10/2007)PermalinkSentinel-1, the radar mission for GMES operational land and sea services / E. Attema in ESA bulletin, n° 131 (August 2007)Permalink