Descripteur
Documents disponibles dans cette catégorie (713)
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
A review and analyses of plumb-line calibration / J.L. Lerma in Photogrammetric record, vol 22 n° 118 (June - August 2007)
[article]
Titre : A review and analyses of plumb-line calibration Type de document : Article/Communication Auteurs : J.L. Lerma, Auteur ; Miriam Cabrelles, Auteur Année de publication : 2007 Article en page(s) : pp 135 - 150 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] chambre non métrique
[Termes IGN] distorsion radiale
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] fil à plombRésumé : (Auteur) Radial and decentring distortion parameters have long been reported as fundamental elements in camera calibration, especially in digital close range photogrammetry. This paper reports on an investigation for the determination of both radial and decentring distortion parameters using analytical plumb-line calibration. Straight line patterns, ranging from 1, 2, 4, 10 and up to 20 lines, not strictly plumb, are examined on a set of distorted imagery. Additionally, not only the number of straight lines but also the linear image distribution is analysed. For that purpose, linear features have been distributed in different positions and orientations over the whole of the imagery. Furthermore, the relationship between the parameters mentioned and the location of the principal point is also analysed, and shows how sensitive they are to deviations from the centre of the sensor. The motivation for this paper is the measurement of the minimum number of linear features for proper calibration of non-metric digital cameras. Both radial and decentring distortion parameters are examined. Finally, some line patterns are recommended for making the plumb-line calibration technique a reliable, easy and fast procedure. Photogrammetrists could use it as a first step in the procedure of camera calibration; users who are not experts in photogrammetry could employ it as a final step. Copyright RS&PS + Blackwell Publishing Numéro de notice : A2007-364 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2007.00412.x En ligne : https://doi.org/10.1111/j.1477-9730.2007.00412.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28727
in Photogrammetric record > vol 22 n° 118 (June - August 2007) . - pp 135 - 150[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-07021 RAB Revue Centre de documentation En réserve L003 Disponible A six-camera digital video imaging system sensitive to visible, red edge, near-infrared, and mid-infrared wavelengths / R.S. Fletcher in Geocarto international, vol 22 n° 2 (June - August 2007)
[article]
Titre : A six-camera digital video imaging system sensitive to visible, red edge, near-infrared, and mid-infrared wavelengths Type de document : Article/Communication Auteurs : R.S. Fletcher, Auteur ; James H. Everitt, Auteur Année de publication : 2007 Article en page(s) : pp 75 - 86 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] capteur imageur
[Termes IGN] image multibande
[Termes IGN] image vidéo
[Termes IGN] rayonnement infrarouge
[Termes IGN] rayonnement lumineux
[Termes IGN] vidéo numériqueRésumé : (Auteur) This paper describes a six-camera multispectral digital video imaging system designed for natural resource assessment and shows its potential as a research tool. It has five visible to near-infrared light sensitive cameras, one near-infrared to mid-infrared light sensitive camera, a monitor, a computer with a multichannel digitizing board, a keyboard, a power distributor, an amplifier, and a mouse. Each camera is fitted with a narrowband interference filter, allowing the system to obtain imagery in the blue (447 - 455 nm), green (555 - 565 nm), red (625 - 635 nm), red edge (704 - 716 nm), near-infrared (814-826 nm), and mid-infrared (1631 - 1676 nm) regions of the electromagnetic spectrum. Analogue video acquired by this system is converted to digital format. Radiometric resolution of the imagery is 8-bit (pixel values range 0 - 255). Images obtained by the system can be evaluated individually and/or in combination with each other to assess natural resources. Copyright Taylor & Francis Numéro de notice : A2007-458 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040701201608 Date de publication en ligne : 18/06/2007 En ligne : https://doi.org/10.1080/10106040701201608 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28821
in Geocarto international > vol 22 n° 2 (June - August 2007) . - pp 75 - 86[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-07021 RAB Revue Centre de documentation En réserve L003 Disponible Ubiquitous positioning: Anyone, anything, anytime, anywhere / X. Meng in GPS world, vol 18 n° 6 (June 2007)
[article]
Titre : Ubiquitous positioning: Anyone, anything, anytime, anywhere Type de document : Article/Communication Auteurs : X. Meng, Auteur ; A. Dodson, Auteur ; T. Moore, Auteur ; G. Roberts, Auteur Année de publication : 2007 Article en page(s) : pp 60 - 65 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] caméra numérique
[Termes IGN] GPS assisté pour la navigation (technologies)
[Termes IGN] GPS-INS
[Termes IGN] PDA
[Termes IGN] positionnement cinématique en temps réel
[Termes IGN] positionnement par GNSS
[Termes IGN] positionnement par GPS
[Termes IGN] récepteur GPS
[Termes IGN] téléphonie mobileRésumé : (Auteur) Mark Weiser is not exactly a household name. He was a chief technology officer at the Xerox Corporation's famous Palo Alto Research Center. This is the same outfit which brought us laser printing, Ethernet communications, the graphical user interface paradigm (including the mouse), and object-oriented programming. Like many of those who make a significant difference in technical fields, Mark Weiser's contributions are well known but his name is not. Dr. Weiser introduced the concept of "ubiquitous computing." He coined this term in 1988 to describe a new generation of the computer era, where the first two generations, that of the mainframe and the personal computer, would be superseded by one in which computers would disappear into the objects that surround us in our daily life both at the office and at home. He further posited that the best computer is a quiet, invisible servant whose "calm technology" informs us but doesn't demand our focus or attention. His idea, often tagged "UbiComp," has borne fruit and we now have smart coffee pots, smart printers, smart copy machines and the like, all connected via a wired or wireless network. Users of some of the smart devices in our UbiComp world, such as mobile telephones, personal digital assistants, cameras, and camcorders, would benefit by knowing their location wherever they might be - whether it's in an open field, on a street surrounded by skyscrapers, or inside an apartment building. As we all know, conventional GPS receivers don't always work where we would like them to. In order for a UbiComp device to know its position anywhere and anytime, we need "ubiquitous positioning" or UbiPos. And like UbiComp, UbiPos should inform us but not demand our focus or attention. In this month's column, we take a look at the available technologies that might be used to supplement conventional GPS positioning and some initial testing that will eventually lead to a UbiPos world, one in which we can locate anyone, anything, anytime, anywhere. Numéro de notice : A2007-249 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28612
in GPS world > vol 18 n° 6 (June 2007) . - pp 60 - 65[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 067-07061 RAB Revue Centre de documentation En réserve L003 Disponible Cloud mapping with ground-based photogrammetric cameras / G. Seiz in International Journal of Remote Sensing IJRS, vol 28 n° 9 (May 2007)
[article]
Titre : Cloud mapping with ground-based photogrammetric cameras Type de document : Article/Communication Auteurs : G. Seiz, Auteur ; J. Shields, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 2001 - 2032 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] caméra numérique
[Termes IGN] données météorologiques
[Termes IGN] étalonnage géométrique
[Termes IGN] étalonnage radiométrique
[Termes IGN] modèle stéréoscopique
[Termes IGN] nuage
[Termes IGN] visualisation 3DRésumé : (Auteur) Ground-based digital imager systems in the visible and near infrared region of the solar spectrum have the potential to nicely complement existing instruments and observation networks of National Weather Services with very accurate, high spatial and temporal resolution, 2D and 3D macroscopic cloud data such as cloud amount, cloud-base height and 3D cloud-base motion. This paper discusses two current approaches to ground-based cloud sensing: the prototype instrument used at ETH/MeteoSwiss within Cloudmap and Cloudmap2 for stereoscopy tests, and a Daylight Visible/NIR Whole Sky Imager (WSI) system developed and fielded by the Scripps Institution of Oceanography (SIO). The article includes descriptions of the radiometric and geometric calibration methods. Cloud amount, cloud-base height and cloud-base motion results from two ETH/MeteoSwiss measurement campaigns and from the operational WSI use at the German Weather Service (DWD) are shown. Finally, a case study with coincident satellite and ground data illustrates that ground-based digital imager systems are an interesting technique to validate satellite-based cloud-top heights and cloud-top motion winds of vertically thin clouds. Copyright Taylor & Francis Numéro de notice : A2007-279 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600641822 En ligne : https://doi.org/10.1080/01431160600641822 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28642
in International Journal of Remote Sensing IJRS > vol 28 n° 9 (May 2007) . - pp 2001 - 2032[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-07051 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Developments in South & East Asia: Space image acquisition for geospatial intelligence / Gordon Petrie in Geoinformatics, vol 10 n° 3 (01/04/2007)
[article]
Titre : Developments in South & East Asia: Space image acquisition for geospatial intelligence Type de document : Article/Communication Auteurs : Gordon Petrie, Auteur Année de publication : 2007 Article en page(s) : pp 38 - 45 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] acquisition d'images
[Termes IGN] ALOS
[Termes IGN] CARTOSAT
[Termes IGN] CBERS
[Termes IGN] Chine
[Termes IGN] Corée du sud
[Termes IGN] image satellite
[Termes IGN] Inde
[Termes IGN] Japon
[Termes IGN] KOMPSAT
[Termes IGN] Malaisie
[Termes IGN] Panchromatic Remote Sensing Instrument for Stereo Mapping
[Termes IGN] ROCSAT
[Termes IGN] Taïwan
[Termes IGN] Thaïlande
[Termes IGN] THEOS
[Termes IGN] Tsinghua (microsatellite)Résumé : (Auteur) By far the biggest source of the data needed for geospatial intelligence purposes comes from the high resolution imagery acquired from spaceborne and airborne platforms. In the specific context of South and East Asia, where there are numerous concerns about national security and threats from neighbours, the primary source for this type of intelligence is spaceborne imagery. Indeed the defence and security agencies in the larger countries in this part of Asia have all been large consumers of the high-resolution space imagery provided, by commercial suppliers such as GeoEye, DigitalGlobe, SPOT Image and ImageSat International. However, recently, nearly all of these Asian countries have either acquired or they are creating their own national capabilities to acquire this type of imagery to overcome the actual or potential restrictions and the delays that occur with the supply of space imagery from sources out with their control. The situation has already been discussed in a preliminary manner in an article published in Geolnformatics by the present writer three years ago (in the March 2004 issue) as part of his world wide survey of high-resolution imaging from space. This new article will concentrate on the many new developments that have taken place in the region since then. Copyright GeoInformatics Numéro de notice : A2007-197 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28560
in Geoinformatics > vol 10 n° 3 (01/04/2007) . - pp 38 - 45[article]A rigorous laboratory calibration method for interior orientation of an airborne linear push-broom camera / Tianen Chen in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 4 (April 2007)PermalinkOpen-source software-operated CMOS camera for real-time mapping / Hervé Gontran in Revue Française de Photogrammétrie et de Télédétection, n° 185 (Mars 2007)PermalinkMERIS in-flight spectral calibration / S. Delwart in International Journal of Remote Sensing IJRS, vol 28 n°3-4 (February 2007)PermalinkRadiometric correction of hemispherical images / A. Kuusk in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 6 (February 2007)PermalinkMonitoring spatio-temporal dynamics of photosynthesis with a portable hyperspectral imaging system / U. Rascher in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 1 (January 2007)PermalinkPerformance analysis of integrated sensor orientation / A. Ip in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 1 (January 2007)PermalinkAnalysis of rigorous orientation models for pushbroom sensors: applications with Quickbird / M. Crespi in Revue Française de Photogrammétrie et de Télédétection, n° 184 (Décembre 2006)PermalinkAutomated metric calibration of colour digital cameras / S. Cronk in Photogrammetric record, vol 21 n° 116 (December 2006 - February 2007)PermalinkExtracting dynamic spatial data from airborne imaging sensors to support traffic flow estimation / Charles K. Toth in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 3-4 (December 2006)PermalinkIGI'S airborne systems: an expanded product range! / Gordon Petrie in Geoinformatics, vol 9 n° 7 (01/11/2006)PermalinkCalibration and validation of digital airborne cameras / P. Boccardo in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)PermalinkEvaluation of hyperspectral data for geological mapping / Muneendra Kumar in Geoinformatics, vol 9 n° 6 (01/09/2006)PermalinkEvaluation of resolving power and MTF of DMC / Eija Honkavaara in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)PermalinkGeometric test field calibration of digital photogrammetric sensors / Eija Honkavaara in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 6 (September 2006)PermalinkGeometric validation of imagery and products from a high performance airborne digital sensor / Jon P. Mills in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)PermalinkHigh-end aerial digital cameras and their impact on the automation and quality of the production workflow / Nicolas Paparoditis in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 6 (September 2006)PermalinkImage restoration for resolution improvement of digital aerial images: a comparison of large format digital cameras / S. Becker in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)PermalinkIs there an ideal digital aerial camera? / Jean-Philippe Souchon in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)PermalinkRéalisation d'un système de stéréovision mobile routier / N. Janvier in XYZ, n° 108 (septembre - novembre 2006)PermalinkStudies on DMC geometry / R. Alamus in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 6 (September 2006)PermalinkTests and performance evaluation of DMC images and new methods for their processing / Li Zhang in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)PermalinkThe ADS40 Vaihingen/Enz geometric performance test / Michael Cramer in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 6 (September 2006)PermalinkVery large scale aerial photography for rangeland monitoring / D.T. Booth in Geocarto international, vol 21 n° 3 (September - November 2006)PermalinkZoom-dependent camera calibration in digital close-range photogrammetry / Clive Simpson Fraser in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 9 (September 2006)PermalinkComparison of spectral indices obtained using multiple spectroradiometers / K.L. Castro-Esau in Remote sensing of environment, vol 103 n° 3 (15 August 2006)PermalinkAutomated techniques for environmental monitoring and change analyses for ultra high resolution remote sensing data / Manfred Ehlers in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 7 (July 2006)PermalinkFurther advances in airborne digital imaging: several new imagers introduced at ASPRS / Gordon Petrie in Geoinformatics, vol 9 n° 5 (01/07/2006)PermalinkCalibration of the optech ALTM-3100 laser scanner intensity data using brightness targets / E. Ahokas in Revue Française de Photogrammétrie et de Télédétection, n° 182 (Juin 2006)PermalinkComparison of two physical sensor models for satellite images: position-rotation model and orbit-attitude model / T. Kim in Photogrammetric record, vol 21 n° 114 (June - August 2006)PermalinkGround-based aerial photography: spectacular growth in recent years / Gordon Petrie in Geoinformatics, vol 9 n° 4 (01/06/2006)PermalinkPlatoon, roll! Robots test sensor combos / S. Crawford in GPS world, vol 17 n° 6 (June 2006)PermalinkAccuracy analysis for DSM and orthoimages derived from SPOT HRS stereo data using direct georeferencing / Peter Reinartz in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 3 (May 2006)PermalinkCameras numériques, point de vue d'un avionneur / Anonyme in Géomatique expert, n° 50 (01/05/2006)PermalinkFirst images from Japan's Daichi, Advanced Land Observing Satellite / Mathias Lemmens in GIM international, vol 20 n° 5 (May 2006)PermalinkMulti-image matching for DSM generation from Ikonos imagery / Li Zhang in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 3 (May 2006)PermalinkPhotogrammètre en France aujourd'hui : espoirs et difficultés / Françoise de Blomac in SIG la lettre, n° 77 (mai 2006)PermalinkUpdating topographic mapping in Great Britain using imagery from high-resolution satellite sensors / David A. Holland in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 3 (May 2006)PermalinkDetermination and improvement of spatial resolution of the CCD-line-scanner system ADS40 / R. Reulke in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 2 (April 2006)PermalinkAbsolute spectroradiometric calibration of the ADS40 sensor / U. Beisl in Revue Française de Photogrammétrie et de Télédétection, n° 181 (Mars 2006)PermalinkApplications pratiques du géoréférencement direct / R. Schroth in Géomatique expert, n° 49 (01/03/2006)Permalinkn° 181 - Mars 2006 - Des capteurs à l'imagerie : symposium ISPRS Commission technique 1, [Actes], Marne la Vallée, 3 - 6 juillet 2006. WG 1/1 standards calibration and validation (Bulletin de Revue Française de Photogrammétrie et de Télédétection) / Société française de photogrammétrie et de télédétectionPermalinkNear infrared photography for craniofacial anthropometric landmark measurement / A.K. Chong in Photogrammetric record, vol 21 n° 113 (March - May 2006)PermalinkPermanent validation of the geometric calibration as a complement to MISR data production system / V. Jovanovic in Revue Française de Photogrammétrie et de Télédétection, n° 181 (Mars 2006)PermalinkRequirements for an orientation and calibration standard for digital aerial cameras and related sensors / W. Kresse in Revue Française de Photogrammétrie et de Télédétection, n° 181 (Mars 2006)PermalinkStability analysis of low-cost digital cameras for aerial mapping using different georeferencing techniques / A. Habib in Photogrammetric record, vol 21 n° 113 (March - May 2006)Permalink