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instrument de mesureSynonyme(s)instrument de mesurage ;appareil de mesure appareil de mesurageVoir aussi |
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Le marégraphe de Marseille : patrimoine et modernité / Alain Coulomb in XYZ, n° 118 (mars - mai 2009)
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[article]
Titre : Le marégraphe de Marseille : patrimoine et modernité Type de document : Article/Communication Auteurs : Alain Coulomb , Auteur
Année de publication : 2009 Article en page(s) : pp 17 - 24 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Termes IGN] histoire de la cartographie
[Termes IGN] instrument de nivellement
[Termes IGN] marégraphe
[Termes IGN] Marseille
[Termes IGN] médimarémètre
[Termes IGN] monument historique
[Termes IGN] niveau moyen des mers
[Termes IGN] Nivellement Général de la France
[Termes IGN] réseau géodésique
[Termes IGN] station GNSS
[Termes IGN] station GPS
[Vedettes matières IGN] AltimétrieRésumé : (Auteur) Le Marégraphe de Marseille, construit en 1884, présente un tel intérêt patrimonial qu'il a été classé en 2002 parmi les monuments historiques. Mais ce site magnifique abrite aussi un observatoire moderne, équipé d'appareils sophistiqués, et intégré dans plusieurs réseaux géodésiques ou programmes d'observation du niveau des mers. Copyright AFT Numéro de notice : A2009-067 Affiliation des auteurs : IGN (1940-2011) Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29697
in XYZ > n° 118 (mars - mai 2009) . - pp 17 - 24[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 112-09011 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Documents numériques
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Le marégraphe de Marseille : patrimoine et modernité - pdf éditeurAdobe Acrobat PDFA photogrammetric surveying method for field applications / D. Rieke-Zapp in Photogrammetric record, vol 24 n° 125 (March - May 2009)
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[article]
Titre : A photogrammetric surveying method for field applications Type de document : Article/Communication Auteurs : D. Rieke-Zapp, Auteur ; R. Rosenbauer, Auteur ; F. Schlunegger, Auteur Année de publication : 2009 Article en page(s) : pp 5 - 22 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] acquisition d'images
[Termes IGN] erreur de mesure
[Termes IGN] précision du positionnement
[Termes IGN] restitution
[Termes IGN] rocher
[Termes IGN] tachéomètre électroniqueRésumé : (Auteur) A photogrammetric method is presented for mapping rock outcrops and other objects in the field. Special attention was paid to simplifying the workflow and to minimising extra bulk and weight of the required equipment while maximising the accuracy of the survey. The minimum equipment needed for the surveys added less than 0·5 kg to the backpack of a field scientist, or as little as 0·2 kg assuming that a suitable camera was already part of the typical equipment carried in the field. Data acquisition in the field took less than 15 min, while image orientation and preparation for stereoviewing took less than 30 min even for a user with little training. Best results were accomplished taking two convergent images as well as three images parallel to the object of interest. Two test sites were surveyed with the method, covering volumes of 3·5 * 5 * 3 m3 and 18 * 20 * 5 m3, to identify the most accurate adjustment method. The maximum length measurement error (LME) was calculated for 28 and 78 distances in the smaller and larger volume, respectively, based on a comparison of the photogrammetric survey with an independent total station survey of the same signalised points. The maximum LME ranged between 0·005 and 0·002 m for the first test site where three cameras were tested, and was 0·021 m for the larger test site where only one camera was tested. The rmse values of the LMEs ranged between 0·003 and 0·001 m for the first and 0·010 m for the second test site, respectively. The smallest and lightest camera, a Ricoh GR Digital, yielded the most accurate results in object space when interior orientation was calibrated on the job. The Sigma SD14 did not require on-the-job calibration for accurate results and was the camera with the best geometric stability. The third camera evaluated, a Rollei d7 metric5, also yielded good results, but could not deliver the extra value that would be expected from a metric camera designed for photogrammetric surveys. Copyright RS&PS + Blackwell Publishing Numéro de notice : A2009-100 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2008.00515.x En ligne : https://doi.org/10.1111/j.1477-9730.2008.00515.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29730
in Photogrammetric record > vol 24 n° 125 (March - May 2009) . - pp 5 - 22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-09011 RAB Revue Centre de documentation En réserve L003 Disponible Radiometric 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)
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[article]
Titre : Radiometric Calibration of LIDAR Intensity With Commercially Available Reference Targets Type de document : Article/Communication Auteurs : S. Kaasalainen, Auteur ; Juha Hyyppä, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 588 - 598 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] détection de cible
[Termes IGN] données lidar
[Termes IGN] étalonnage radiométrique
[Termes IGN] intensité lumineuse
[Termes IGN] Lidar
[Termes IGN] luminance lumineuse
[Termes IGN] objet géographique ponctuel
[Termes IGN] réflectance
[Termes IGN] rétrodiffusionRésumé : (Auteur) We present a new approach for radiometric calibration of light detection and ranging (LIDAR) intensity data and demonstrate an application of this method to natural targets. The method is based on 1) using commercially available sand and gravel as reference targets and 2) the calibration of these reference targets in the laboratory conditions to know their backscatter properties. We have investigated the target properties crucial for accurate and consistent reflectance calibration and present a set of ideal targets easily available for calibration purposes. The first results from LIDAR-based brightness measurement of grass and sand show that the gravel-based calibration approach works in practice, is cost effective, and produces statistically meaningful results: Comparison of results from two separate airborne laser scanning campaigns shows that the relative calibration produces repeatable reflectance values. Copyright IEEE Numéro de notice : A2009-023 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2008.2003351 En ligne : https://doi.org/10.1109/TGRS.2008.2003351 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29653
in IEEE Transactions on geoscience and remote sensing > vol 47 n° 2 (February 2009) . - pp 588 - 598[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-09021 RAB Revue Centre de documentation En réserve L003 Disponible Airborne lidar feature selection for urban classification using random forests / Nesrine Chehata (2009)
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contenu dans ISPRS Workshop Laserscanning'09, Paris, France, September 1-2, 2009 / Frédéric Bretar (2009)
Titre : Airborne lidar feature selection for urban classification using random forests Type de document : Article/Communication Auteurs : Nesrine Chehata , Auteur ; Li Guo, Auteur ; Clément Mallet
, Auteur
Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2009 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 38-3/W8 Conférence : ISPRS 2009, Workshop LaserScanning 01/09/2009 02/09/2009 Paris France OA Archives proceedings Importance : pp 207 - 212 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] classification dirigée
[Termes IGN] classification par forêts d'arbres décisionnels
[Termes IGN] données lidar
[Termes IGN] lidar à retour d'onde complèteRésumé : (Auteur) Various multi-echo and Full-waveform (FW) lidar features can be processed. In this paper, multiple classifers are applied to lidar feature selection for urban scene classification. Random forests are used since they provide an accurate classification and run efficiently on large datasets. Moreover, they return measures of variable importance for each class. The feature selection is obtained by backward elimination of features depending on their importance. This is crucial to analyze the relevance of each lidar feature for the classification of urban scenes. The Random Forests classification using selected variables provide an overall accuracy of 94.35%. Numéro de notice : C2009-005 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : FORET/IMAGERIE Nature : Communication DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVIII/3-W8/papers/207_laserscanning09.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=65045 Bundle adjustment and pose estimation of images of a multiframe panoramic camera / Bertrand Cannelle (2009)
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Titre : Bundle adjustment and pose estimation of images of a multiframe panoramic camera Type de document : Article/Communication Auteurs : Bertrand Cannelle , Auteur ; Daniela Craciun
, Auteur ; Didier Boldo
, Auteur ; Nicolas Paparoditis
, Auteur
Editeur : Saint-Mandé : Institut Géographique National - IGN (2008-2011) Année de publication : 2009 Conférence : O3DMT 2009, 9th Optical 3-D Measurement Techniques Conference 01/07/2009 03/07/2009 Vienne Autriche OA Archives proceedings Importance : 6 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] appariement d'images
[Termes IGN] compensation par faisceaux
[Termes IGN] image panoramique
[Termes IGN] image terrestre
[Termes IGN] orientation d'image
[Termes IGN] orientation relative
[Termes IGN] photothéodolite
[Termes IGN] SIFT (algorithme)
[Termes IGN] StéréopolisRésumé : (Auteur) The STEREOPOLIS mobile mapping system, developed in the MATIS laboratory of IGN for city modelling and multimedia applications, integrates a panoramic head composed of 10 full HD cameras very accurately synchronised. For each pose, a panoramic image is generated from the set of corresponding but poorly overlapping images. In this paper, we evaluate the performance of a three-step method developed in Craciun that computes the relative pose between the different frame camera images composing the panoramic frame. A phototheodolite, i.e. a theodolite coupled with a digital camera, is used to construct a reference data set with a ground truth which is sufficiently accurate (to some extent) to evaluate by comparison the results of our pose estimation process. We present the different steps to compute, then we present the algorithm which is used as well as mathematic concept and finally results are commented the results of our pose estimation process will also be compared with an off-the-shelf high quality software using SIFT-based corresponding points and bundle adjustment, i.e. Autopano. Numéro de notice : 13847 Affiliation des auteurs : MATIS (1993-2011) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64283 Documents numériques
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13847_commu_optical3d2009_cannelle_et_al.pdfAdobe Acrobat PDFFull-waveform topographic lidar: State-of-the-art / Frédéric Bretar in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 1 (January - February 2009)
PermalinkFullanalyze : a research tool for handling, processing and analyzing full-waveform Lidar data / Adrien Chauve (2009)
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PermalinkIFSAR and LIDAR: the best of both worlds / Intermap technologies in GEO: Geoconnexion international, vol 8 n° 1 (january 2009)
PermalinkPermalinkMulti-band test robotic total stations: Trimble VX, Part 4 / L. Van Der Poel in Geoinformatics, vol 12 n° 1 (01/01/2009)
PermalinkPrecise point positioning with GPS: A new approach for positioning, atmospheric studies, and signal analysis / Rodrigo Figueiredo Leandro (2009)
PermalinkTaking LIDAR data to the next level / A. Denniss in GEO: Geoconnexion international, vol 8 n° 1 (january 2009)
PermalinkThe international Doris service, IDS activity report, January 2006 - December 2008 / Pierre Tavernier (2009)
PermalinkMulti-band test robotic total stations: Leica TPS 1200+, part 3 / L. Van Der Poel in Geoinformatics, vol 11 n° 8 (01/12/2008)
PermalinkTide gauge datum continuity at Brest since 1711: France's longest sea-level record / Guy Wöppelmann in Geophysical research letters, vol 35 n° 22 (28/11/2008)
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