Descripteur
Documents disponibles dans cette catégorie (3742)
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
Adjustment computation of HASM : a high-accuracy and high speed method / T. Yue in International journal of geographical information science IJGIS, vol 24 n°11-12 (december 2010)
[article]
Titre : Adjustment computation of HASM : a high-accuracy and high speed method Type de document : Article/Communication Auteurs : T. Yue, Auteur ; Shuo Wang, Auteur Année de publication : 2010 Article en page(s) : pp 1725 - 1743 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] compensation par modèles
[Termes IGN] Kansou (Chine)
[Termes IGN] modèle numérique de surface
[Termes IGN] modélisation 2D
[Termes IGN] Setchouan (Chine)
[Termes IGN] surface (géométrie)
[Termes IGN] test de performance
[Termes IGN] traitement de données localisées
[Termes IGN] Tsinghai (Chine)
[Termes IGN] visualisation simultanéeRésumé : (Auteur) We developed a method for high-accuracy surface modeling (HASM) in terms of the fundamental theorem of surfaces, which has theoretically found a solution for error problems. However, the computing speed of HASM was too slow to be widely applied in practice. Thus, adjustment computation of HASM (HASM-AC) is developed in this article. For comparatively testing HASM-AC accuracy, a mathematical surface is first selected so that the true value is able to be predetermined to avoid uncontrollable data errors. The numerical test indicates that HASM-AC has the highest accuracy and its accuracy is 20.67, 15.67, and 14.67 times higher than the inverse distance weighting (IDW), kriging, and spline, respectively. Then, a 0.4 km times 0.5 km rectangular area is used to test the effects of different spatial resolutions and sampling intervals on accuracy. This real-world test demonstrates that HASM-AC accuracy increases at a much better and stable pace as the spatial resolution becomes finer and sampling intervals get shorter, compared to the classic methods. Finally, the computing speed is tested in an area with 6000 times 6000 grid cells where Qinghai, Gansu, and Sichuan provinces meet. The computing speed of HASM-AC is 11, 8, and 563 times faster than IDW, spline, and kriging, respectively, which makes HASM-AC able to process data in a huge size and make real-time visualization realizable. In short, HASM-AC performs best in both the numerical and real-world tests. Numéro de notice : A2010-550 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810903569580 En ligne : https://doi.org/10.1080/13658810903569580 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30742
in International journal of geographical information science IJGIS > vol 24 n°11-12 (december 2010) . - pp 1725 - 1743[article]Réservation
Réserver ce documentExemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-2010071 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010072 RAB Revue Centre de documentation En réserve L003 Disponible Algorithms for automatic matching of polygons or closed curves derived from different images / Y. Avrahami in SaLIS Surveying and land information science, vol 70 n° 4 (Winter 2010)
[article]
Titre : Algorithms for automatic matching of polygons or closed curves derived from different images Type de document : Article/Communication Auteurs : Y. Avrahami, Auteur ; Y. Doytsher, Auteur Année de publication : 2010 Article en page(s) : pp 175 - 185 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] appariement d'images
[Termes IGN] appariement de formes
[Termes IGN] espace image
[Termes IGN] extraction de traits caractéristiques
[Termes IGN] itération
[Termes IGN] points homologues
[Termes IGN] polygone
[Termes IGN] reconstruction 3D
[Termes IGN] reconstruction d'objet
[Termes IGN] recouvrement d'imagesRésumé : (Auteur) Automation in 3-dimension (3D) object reconstruction is a relevant and challenging task, both from a practical and scientific point of view. This paper deals with two basic non-planar primitive objects—spatial polygons and 3D closed curves. To achieve 3D information from a pair of images, with known interior and exterior orientations, it is necessary to first extract t2D objects from each of the images separately, then match the objects to find homologues points between them, and finally reconstruct the 3D object. The matching problem between two objects derived from two different images, has a trivial solution: For each point in the first object the corresponding homologous point in the second object can be found by intersecting its epipolar line and the second object in the second image space. However, because extraction of objects in the image space is performed automatically, the process often fails. For example, when there are a number of intersections per point there is no intersection at all, or there are more points than those existing in the “real” 3D object. To overcome these difficulties, innovative algorithms designed to enable a maximal matching between polygons or closed curves and to find homologues points between them were developed. The algorithms are iterative and are based on the “overlapping criterion” between the objects. According to this criterion, projection of two polygons or closed curves from the image space to any planar surface using the real depths leads to a maximal matching between the objects. The suggested process is based on the well known optimization model called “adjustment by conditions.” One of the 2D polygons or closed curves is chosen as the static object and the other is the dynamic object. The unknowns in this model are the real depths of each point in the dynamic object. The points in the dynamic object are assigned a previously calculated average depth. In each iteration, these depths are updated until the conditional equation is optimized. During the iterations the dynamic object “slides” in the direction of the epipolar line in the image space of the static object. The “slide” rate is not constant because it depends on the varying depths of each point. The iteration process stops when the maximum overlap between the static and dynamic objects is achieved in the image space of the static object. In this paper, the algorithms, the experiments, and the results are detailed. Numéro de notice : A2010-581 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83715
in SaLIS Surveying and land information science > vol 70 n° 4 (Winter 2010) . - pp 175 - 185[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 121-2010041 RAB Revue Centre de documentation En réserve L003 Disponible Epipolar arrangement of satellite imagery by projection trajectory simplification / M. Wang in Photogrammetric record, vol 25 n° 132 (December 2010 - February 2011)
[article]
Titre : Epipolar arrangement of satellite imagery by projection trajectory simplification Type de document : Article/Communication Auteurs : M. Wang, Auteur ; F. Hu, Auteur ; J. Li, Auteur Année de publication : 2010 Article en page(s) : pp 422 - 436 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] courbe épipolaire
[Termes IGN] image Ikonos
[Termes IGN] image IRS
[Termes IGN] image SPOT-HRG
[Termes IGN] linéarisation
[Termes IGN] lissage de courbe
[Termes IGN] méthode des moindres carrés
[Termes IGN] modèle stéréoscopique
[Termes IGN] orbitographie
[Termes IGN] parallaxe
[Termes IGN] trajectoire (véhicule non spatial)Résumé : (Auteur) This paper presents an efficient algorithm for approximate epipolar image generation from stereoscopic satellite images by projection trajectory simplification. In this algorithm, the original non-linear projection trajectory is simplified to a linear one by the least squares line fitting of sample points selected from the projection trajectory. The performance of the algorithm is evaluated using IRS-P5, SPOT5-HRG and IKONOS stereo-images acquired in different stereoscopic imaging modes over different terrain types. The results obtained indicate that the vertical parallax of each pair of conjugate image points on the epipolar images thus generated achieves accuracy at the sub-pixel level. Numéro de notice : A2010-534 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2010.00602.x Date de publication en ligne : 22/12/2010 En ligne : https://doi.org/10.1111/j.1477-9730.2010.00602.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30726
in Photogrammetric record > vol 25 n° 132 (December 2010 - February 2011) . - pp 422 - 436[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-2010041 RAB Revue Centre de documentation En réserve L003 Disponible High resolution topographic model of Panarea Island by fusion of photogrammetric, lidar and bathymetric digital terrain models / Massimo Fabris in Photogrammetric record, vol 25 n° 132 (December 2010 - February 2011)
[article]
Titre : High resolution topographic model of Panarea Island by fusion of photogrammetric, lidar and bathymetric digital terrain models Type de document : Article/Communication Auteurs : Massimo Fabris, Auteur ; P. Baldi, Auteur ; M. Anzidei, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 382 - 401 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] données bathymétriques
[Termes IGN] données lidar
[Termes IGN] fusion de données
[Termes IGN] lasergrammétrie
[Termes IGN] littoral
[Termes IGN] modèle numérique bathymétrique
[Termes IGN] modèle numérique de terrain
[Termes IGN] photogrammétrie aérienne
[Termes IGN] prévention des risques
[Termes IGN] risque naturel
[Termes IGN] Sicile
[Termes IGN] volcanRésumé : (Auteur) Aerial digital photogrammetry and laser scanning (lidar) and marine multibeam bathymetry can play a fundamental role in the generation of digital terrain models (DTMs) of land and submarine areas, respectively. Integrating these survey techniques is crucial for providing accurate and homogeneous DTMs along narrow coastal zones that often cannot be adequately surveyed owing to logistical limitations on collecting bathymetric data in shallow water. In this project, three aerial photogrammetric surveys, two multibeam bathymetric surveys and a lidar survey were analysed and integrated in the same reference system in order to generate the first 3D high resolution “digital terrain and marine model” (DTMM) of the volcanic island of Panarea (Aeolian Islands, Italy). This is a volcanically active area that underwent a submarine gas eruption in November 2002, and produced impacts on the environment as well as potential hazards for the local population. The DTMM shows the morphological features of this volcanic area with an average grid resolution of 1 m and a maximum elevation error of 1 m. This model will significantly improve geophysical and geomorphological studies of this volcanic island and assist in reducing future hazards. Numéro de notice : A2010-532 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2010.00600.x Date de publication en ligne : 22/12/2010 En ligne : https://doi.org/10.1111/j.1477-9730.2010.00600.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30724
in Photogrammetric record > vol 25 n° 132 (December 2010 - February 2011) . - pp 382 - 401[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-2010041 RAB Revue Centre de documentation En réserve L003 Disponible Orientation and 3D modelling from markerless terrestrial images : combining accuracy with automation / Luigi Barazzetti in Photogrammetric record, vol 25 n° 132 (December 2010 - February 2011)
[article]
Titre : Orientation and 3D modelling from markerless terrestrial images : combining accuracy with automation Type de document : Article/Communication Auteurs : Luigi Barazzetti, Auteur ; Marco Scaioni, Auteur ; Fabio Remondino, Auteur Année de publication : 2010 Article en page(s) : pp 356 - 381 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] appariement d'images
[Termes IGN] appariement de réseaux
[Termes IGN] compensation par faisceaux
[Termes IGN] données lidar
[Termes IGN] élément d'orientation externe
[Termes IGN] image terrestre
[Termes IGN] modélisation 3D
[Termes IGN] orientation externe
[Termes IGN] reconstruction 3D
[Termes IGN] semis de pointsRésumé : (Auteur) In this paper an automated methodology is presented (i) to orient a set of close-range images captured with a calibrated camera, and (ii) to extract dense and accurate point clouds starting from the estimated orientation parameters. The whole procedure combines different algorithms and techniques in order to obtain accurate 3D reconstructions in an automatic way. The exterior orientation parameters are estimated using a photogrammetric bundle adjustment with the image correspondences detected using area- and feature-based matching algorithms. Surface measurements are then performed using advanced multi-image matching techniques based on multiple image primitives. To demonstrate the reliability, precision and robustness of the procedure, several tests on different kinds of free-form objects are illustrated and discussed in the paper. Three-dimensional comparisons with range-based data are also carried out. Numéro de notice : A2010-531 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2010.00599.x Date de publication en ligne : 22/12/2010 En ligne : https://doi.org/10.1111/j.1477-9730.2010.00599.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30723
in Photogrammetric record > vol 25 n° 132 (December 2010 - February 2011) . - pp 356 - 381[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-2010041 RAB Revue Centre de documentation En réserve L003 Disponible Use of high-resolution satellite imagery in an integrated model to predict the distribution of shade coffee tree hybrid zones / C. Gomez in Remote sensing of environment, vol 114 n° 11 (15/11/2010)PermalinkAn update on automatic 3D building reconstruction / Norbert Haala in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 6 (November - December 2010)PermalinkClose range photogrammetry for industrial applications / T. Luhmann in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 6 (November - December 2010)PermalinkConnaître les besoins avant les relevés / Raphaële Heno in Géomètre, n° 2075 (novembre 2010)PermalinkDTM generalisation : handling large volumes of data for multi-scale mapping / O. Chaudry in Cartographic journal (the), vol 47 n° 4 (November 2010)PermalinkGeometric rectification of satellite imagery with ground control using space oblique mercator projection theory / L. Ren in Cartography and Geographic Information Science, vol 37 n° 4 (October 2010)PermalinkMaking photogrammetry efficient: SimActive's Correlator3D software / P. Simard in Geoinformatics, vol 13 n° 7 (01/10/2010)PermalinkPoint clouds : Lidar versus 3D vision / A. Irschara in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 10 (October 2010)PermalinkRegistration of terrestrial photogrammetric data using natural surfaces as control / S. Levin in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 10 (October 2010)Permalink3D ichnology-recovering digital 3D models of dinosaur footprints / Fabio Remondino in Photogrammetric record, vol 25 n° 131 (September - November 2010)PermalinkApplying close range digital photogrammetry in soil erosion studies / B. Heng in Photogrammetric record, vol 25 n° 131 (September - November 2010)PermalinkAssessment of erosion, deposition and rill development on irregular soil surfaces using close range digital photogrammetry / G. Gessesse in Photogrammetric record, vol 25 n° 131 (September - November 2010)PermalinkCartographie héliportée avec un système Lidar photogrammétrique portable à la main : expériences pratiques en montagne, analyse des performances et de la phase de calibration / Jacques Vallet in Revue Française de Photogrammétrie et de Télédétection, n° 192 (Septembre 2010)PermalinkClose-range imaging & measuring techniques: a report in the ISPRS commission 5, 2010 symposium / Gordon Petrie in Geoinformatics, vol 13 n° 6 (01/09/2010)PermalinkComparison of matching algorithms for DSM generation in urban areas from ikonos imagery / A. Alobeid in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 9 (September 2010)PermalinkDGPF projec t: evaluation of digital photogrammetric aerial-based imaging systems: overview and results from the pilot center / Michael Cramer in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 9 (September 2010)PermalinkA digital medium-format camera for metric applications: Alpa 12 metric / D. Rieke-Zapp in Photogrammetric record, vol 25 n° 131 (September - November 2010)PermalinkPhotogrammetric modeling of underwater environments / G. Telem in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 5 (September - October 2010)PermalinkRecalage de relevés laser fixes et mobiles sur MNS pour la cartographie numérique 3D / T. Ridene in Revue Française de Photogrammétrie et de Télédétection, n° 192 (Septembre 2010)PermalinkRelevé routier à très haute résolution par système LIDAR-photogrammétrique héliporté / Jacques Vallet in Géomatique suisse, vol 108 n° 9 (01/09/2010)Permalinkvol 25 n° 131 - September - November 2010 - Special issue : ISPRS working group conference 2009 close range morphological measurement for the Earth sciences (Bulletin de Photogrammetric record) / Remote sensing and photogrammetry societyPermalinkA unified approach to self-calibration of terrestrial laser scanners / Yuriy Reshetyuk in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 5 (September - October 2010)Permalink2D building change detection from high resolution satellite imagery: A two-step hierarchical method based on 3D invariant primitives / Nicolas Champion in Pattern recognition letters, vol 31 n° 10 (15 July 2010)Permalink3D road marking reconstruction from street-level calibrated stereo pairs / Bahman Soheilian in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 4 (July - August 2010)PermalinkAn application-driven approach to terrain model construction / A. Darnell in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)PermalinkAn efficient stochastic approach for building footprint extraction from digital elevation models / Olivier Tournaire in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 4 (July - August 2010)PermalinkAn integrated bundle adjustment approach to range camera geometric self-calibration / Derek D. Lichti in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 4 (July - August 2010)PermalinkRadarsat-2 data: automated high accuracy geometric correction and mosaicking without ground control points / Penggen Cheng in Geoinformatics, vol 13 n° 5 (01/07/2010)PermalinkVertical accuracy of digital elevation model from Shuttle Radar Topographic Mission: a case study / Ashu Sharma in Geocarto international, vol 25 n° 4 (July 2010)PermalinkCamera calibration with baseline distance constraints / J. Lerma in Photogrammetric record, vol 25 n° 130 (June - August 2010)PermalinkConvergence CAO/SIG, état des lieux (partie 1) / Anonyme in Géomatique expert, n° 75 (01/06/2010)PermalinkDefinition of ICESat selection criteria for their use as height references for TanDEM-X / J. Gonzalez in IEEE Transactions on geoscience and remote sensing, vol 48 n° 6 (June 2010)PermalinkIntegration of historical geographic data into current georeferenced frameworks: A user-centred approach / Eric Grosso in e-Perimetron, vol 5 n° 3 ([01/06/2010])PermalinkModalités intégrées de relevés et représentations de bâtiments historiques / G. Bezoari in Géomatique suisse, vol 108 n° 6 (01/06/2010)PermalinkOrientation relative à partir de 3 points homologues et de la direction verticale : Une approche directe / Mahzad Kalantari in Traitement du signal, vol 27 n° 3 (2010-3)PermalinkSuperresolution enhancement of hyperspectral CHRIS/Proba images with a thin-plate spline nonrigid transform model / J. Chan in IEEE Transactions on geoscience and remote sensing, vol 48 n° 6 (June 2010)PermalinkAn automatic mosaicking method for building facade texture mapping using a monocular close-range image sequence / Z. Kang in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 3 (May - June 2010)PermalinkLa manipulation d'une maquette 3D à portée de main / Michel Ravelet in Géomètre, n° 2070 (mai 2010)PermalinkObtaining high fidelity triangular Regular Network from only DEM points / T. Gökgöz in Cartographic journal (the), vol 47 n° 2 (May 2010)PermalinkPositional Accuracy Evaluation of Declassified Hexagon KH-9 Mapping Camera Imagery / A. Surazakov in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 5 (May 2010)PermalinkAcquisition de nuages de points denses par photogrammétrie terrestre : Application à la mission d'archéologie de Kilwa, Arabie Saoudite / J.F. Hullo in XYZ, n° 122 (mars - mai 2010)PermalinkMNT, MNE, MNS : de quoi parle-t-on ? / Françoise de Blomac in SIG la lettre, n° 116 (avril 2010)PermalinkMNT et MNE sur étagère / Françoise de Blomac in SIG la lettre, n° 116 (avril 2010)PermalinkProblèmes de calage de la carte historique de Rome (1908) à l'échelle 1:5 000 / Valerio Baiocchi in Géomatique expert, n° 74 (01/04/2010)PermalinkQualité, résolution, précision... Bienvenue dans un monde imparfait / Françoise de Blomac in SIG la lettre, n° 116 (avril 2010)Permalink