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Open-source software-operated CMOS camera for real-time mapping / Hervé Gontran in Revue Française de Photogrammétrie et de Télédétection, n° 185 (Mars 2007)
[article]
Titre : Open-source software-operated CMOS camera for real-time mapping Type de document : Article/Communication Auteurs : Hervé Gontran, Auteur ; Jan Skaloud, Auteur ; N. Janvier, Auteur Année de publication : 2007 Conférence : ISPRS 2006, Commission 1 Symposium, From sensors to imagery 03/07/2006 06/07/2006 Champs-sur-Marne [Paris Marne-la-Vallée] France OA ISPRS Archives Article en page(s) : pp 73 - 77 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] axe médian
[Termes IGN] chambre CMOS
[Termes IGN] extraction automatique
[Termes IGN] extraction du réseau routier
[Termes IGN] géoréférencement direct
[Termes IGN] image vidéo
[Termes IGN] logiciel libre
[Termes IGN] prise de vue terrestre
[Termes IGN] route
[Termes IGN] système de numérisation mobile
[Termes IGN] temps réelRésumé : (Auteur) Accurate time registration, georeferencing, and instantaneous feature extraction are important challenges for real-time mapping systems. The Geodetic Engineering Laboratory (TOPO) at the EPFL has designed a mobile platform to automatically determine the geometry of the road centerline: the Photobus. Our system fully exploits the concept of direct georeferencing by combining navigation data with video sequences grabbed by a downward-pointing camera. This paper presents the realization of the authors' vision of real-time mapping that encompasses a mobile acquisition platform dedicated for a well-defined task. To sustain the high performance requirements of such a data-critical application, the use of custom-made software based on open-source libraries is a preferred approach of implementation. In this context, we investigate the suitability of using a close-to-nadiral CMOS camera to extract the road geometry with a reliable and almost latency-free methodology. We will first focus on the frame-grabbing process for which an open-source approach guarantees the versatile integration of the camera into the mapping platform. The second part of the paper discusses the process of extracting and georeferencing features of interest in an automatic manner. To open perspectives, we will investigate an extension of the surveying capabilities of the Photobus with stereovision. Copyright SFPT Numéro de notice : A2007-401 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/part1/Papers/T10-42.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28764
in Revue Française de Photogrammétrie et de Télédétection > n° 185 (Mars 2007) . - pp 73 - 77[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 018-07011 RAB Revue Centre de documentation En réserve L003 Disponible Automated metric calibration of colour digital cameras / S. Cronk in Photogrammetric record, vol 21 n° 116 (December 2006 - February 2007)
[article]
Titre : Automated metric calibration of colour digital cameras Type de document : Article/Communication Auteurs : S. Cronk, Auteur ; Clive Simpson Fraser, Auteur ; H. Hanley, Auteur Année de publication : 2006 Article en page(s) : pp 355 - 372 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] aberration chromatique
[Termes IGN] automatisation
[Termes IGN] caméra numérique
[Termes IGN] compensation par faisceaux
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] image en couleur
[Termes IGN] image RVB
[Termes IGN] orientation externe
[Termes IGN] orientation relativeRésumé : (Auteur) Consumer-grade digital cameras have become commonplace and with calibration there is significant potential for their use in photogrammetric applications. This paper describes a new method for automatic camera calibration, which is suited to colour digital cameras. Two innovations are central to the developed process. The first is exploitation of RGB colour attributes in the design of automatically detected and identified coded targets. The second is a new approach to initial value determination for relative orientation, which then supports fully automatic initial network exterior orientation and subsequent bundle adjustment with self-calibration. Accuracy aspects are also touched upon and the impact of chromatic aberration is discussed. Finally, an example of the automatic calibration process, which is implemented in the iWitness system, is presented for the case of multiple zoom settings of a consumer-grade digital camera. Copyright RS&PS + Blackwell Publishing Numéro de notice : A2006-542 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2006.00380.x En ligne : https://doi.org/10.1111/j.1477-9730.2006.00380.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28265
in Photogrammetric record > vol 21 n° 116 (December 2006 - February 2007) . - pp 355 - 372[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-06041 RAB Revue Centre de documentation En réserve L003 Disponible Extracting 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)
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Titre : Extracting dynamic spatial data from airborne imaging sensors to support traffic flow estimation Type de document : Article/Communication Auteurs : Charles K. Toth, Auteur ; Dorota A. Grejner-Brzezinska, Auteur Année de publication : 2006 Article en page(s) : pp 137 - 148 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] caméra numérique
[Termes IGN] extraction automatique
[Termes IGN] image aérienne
[Termes IGN] information géographique
[Termes IGN] objet mobile
[Termes IGN] réseau routier
[Termes IGN] télémétrie laser aéroporté
[Termes IGN] trafic routierRésumé : (Auteur) The recent transition from analog to totally digital data acquisition and processing techniques in airborne surveying represents a major milestone in the evolution of spatial information science and practice. On one hand, the improved quality of the primary sensor data can provide the foundation for better automation of the information extraction processes. This phenomenon is also strongly supported by continuously expanding computer technology, which offers almost unlimited processing power. On the other hand, the variety of the data, including rich information content and better temporal characteristics, acquired by the new digital sensors and coupled with rapidly advancing processing techniques, is broadening the applications of airborne surveying. One of these new application areas is traffic flow extraction aimed at supporting better traffic monitoring and management. Transportation mapping has always represented a significant segment of civilian mapping and is mainly concerned with road corridor mapping for design and engineering purposes, infrastructure mapping and facility management, and more recently, environmental mapping. In all these cases, the objective of the mapping is to extract the static features of the object space, such as man-made and natural objects, typically along the road network. In contrast, the traffic moving in the transportation network represents a very dynamic environment, which complicates the spatial data extraction processes as the signals of moving vehicles should be identified and removed. Rather than removing and discarding the signals, however, they can be turned into traffic flow information. This paper reviews initial research efforts to extract traffic flow information from laserscanner and digital camera sensors installed in airborne platforms. Copyright ISPRS Numéro de notice : A2006-602 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.09.010 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.09.010 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28325
in ISPRS Journal of photogrammetry and remote sensing > vol 61 n° 3-4 (December 2006) . - pp 137 - 148[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-06091 RAB Atlas / Beau livre Centre de documentation En réserve L003 Exclu du prêt IGI'S airborne systems: an expanded product range! / Gordon Petrie in Geoinformatics, vol 9 n° 7 (01/11/2006)
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Titre : IGI'S airborne systems: an expanded product range! Type de document : Article/Communication Auteurs : Gordon Petrie, Auteur Année de publication : 2006 Article en page(s) : pp 36 - 41 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] capteur aérien
[Termes IGN] GPS-INS
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) IGI is a small but innovative German high-technology company that, for over twenty years, has been in the forefront of the development of computer-based flight navigation, guidance and management systems for use in airborne survey and mapping missions. However, recently the company has extended its activities into the development of airborne digital cameras and airborne and ground-based laser scanning systems. The products resulting from this development have started to make a significant impact within these fields, while, at the same time, the company has retained its major presence in the area of in-flight positioning, navigation, guidance and sensor management systems. Copyright GEOinformatics Numéro de notice : A2006-480 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28204
in Geoinformatics > vol 9 n° 7 (01/11/2006) . - pp 36 - 41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-06071 SL Revue Centre de documentation Revues en salle Disponible Calibration and validation of digital airborne cameras / P. Boccardo in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)
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Titre : Calibration and validation of digital airborne cameras Type de document : Article/Communication Auteurs : P. Boccardo, Auteur ; Michael Cramer, Auteur Année de publication : 2006 Article en page(s) : pp 50 - 55 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] assurance qualité
[Termes IGN] caméra numérique
[Termes IGN] capteur aérien
[Termes IGN] capteur imageur
[Termes IGN] certification
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] image aérienneRésumé : (Auteur) With the growing use of digital airborne imagers in daily operational data acquisition and processing the need for the development of guidelines and procedures for quality assurance and quality control is clearly obvious. Several national and international organizations are dealing with those topics, where focus is laid on the calibration, validation and certification of the new sensors. As an example the activities from USGS (United States) and EuroSDR (Europe) are presented within this article. Since both projects are still under current processing, only an overview and snap-shot of the status and preliminary results are given. Copyright SFPT Numéro de notice : A2006-629 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28352
in Revue Française de Photogrammétrie et de Télédétection > n° 183 (Septembre 2006) . - pp 50 - 55[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 018-06031 RAB Revue Centre de documentation En réserve L003 Disponible Evaluation 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)Permalink