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Improving Cartosat-1 DEM accuracy using synthetic stereo pair and triplet / D. Giribabu in ISPRS Journal of photogrammetry and remote sensing, vol 77 (March 2013)
[article]
Titre : Improving Cartosat-1 DEM accuracy using synthetic stereo pair and triplet Type de document : Article/Communication Auteurs : D. Giribabu, Auteur ; S. Srinivasa Rao, Auteur ; Y.V.N. Krishna Murthy, Auteur Année de publication : 2013 Article en page(s) : pp 31 - 43 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] couple stéréoscopique
[Termes IGN] Himalaya
[Termes IGN] image Cartosat-1
[Termes IGN] image tri-stéréoscopique
[Termes IGN] modèle numérique de surface
[Termes IGN] modèle stéréoscopique
[Termes IGN] montagneRésumé : (Auteur) Cartosat–1 is the first Indian Remote Sensing Satellite capable of providing along-track stereo images. Cartosat–1 provides forward stereo images with look angles +26° and -5° with respect to nadir for generating Digital Elevation Models (DEMs), Orthoimages and value added products for various applications. A pitch bias of -21° to the satellite resulted in giving reverse tilt mode stereo pair with look angles of +5° and -26° with respect to nadir. This paper compares DEMs generated using forward, reverse and other possible synthetic stereo pairs for two different types of topographies. Stereo triplet was used to generate DEM for Himalayan mountain topography to overcome the problem of occlusions. For flat to undulating topography it was shown that using Cartosat-1 synthetic stereo pair with look angles of -26° and +26° will produce improved version of DEM. Planimetric and height accuracy (Root Mean Square Error (RMSE)) of less than 2.5 m and 2.95 m respectively were obtained and qualitative analysis shows finer details in comparison with other DEMs. For rugged terrain and steep slopes of Himalayan mountain topography simple stereo pairs may not provide reliable accuracies in DEMs due to occlusions and shadows. Stereo triplet from Cartosat-1 was used to generate DEM for mountainous topography. This DEM shows better reconstruction of elevation model even at occluded region when compared with simple stereo pair based DEM. Planimetric and height accuracy (RMSE) of nearly 3 m were obtained and qualitative analysis shows reduction of outliers at occluded region. Numéro de notice : A2013-113 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.12.005 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.12.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32251
in ISPRS Journal of photogrammetry and remote sensing > vol 77 (March 2013) . - pp 31 - 43[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2013031 RAB Revue Centre de documentation En réserve L003 Disponible Photogrammetric techniques for the determination of spatio-temporal velocity fields at glaciar San Rafael, Chile / Hans-Gerd Maas in Photogrammetric Engineering & Remote Sensing, PERS, vol 79 n° 3 (March 2013)
[article]
Titre : Photogrammetric techniques for the determination of spatio-temporal velocity fields at glaciar San Rafael, Chile Type de document : Article/Communication Auteurs : Hans-Gerd Maas, Auteur ; G. Casasa, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 299 - 306 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse spatio-temporelle
[Termes IGN] champ de vitesse
[Termes IGN] Chili
[Termes IGN] géoréférencement
[Termes IGN] glacier
[Termes IGN] image terrestre
[Termes IGN] Patagonie
[Termes IGN] positionnement par GPS
[Termes IGN] séquence d'imagesRésumé : (Auteur) Glaciar San Rafael in the Northern Patagonia Icefield, with a length of 46 km and an ice area of 722 km2, is the lowest latitude tidewater outlet glacier in the world and one of the fastest and most productive glaciers in southern South America in terms of iceberg flux. Spatio-temporal velocity fields in the region of the glacier front were determined from monoscopic terrestrial image sequences recorded by an inter-vallometer mode high-resolution digital camera over several days. In these image sequences, a large number of glacier surface points were tracked by subpixel accuracy feature tracking techniques. Scaling and georeferencing of the trajectories obtained from image space tracking was performed using a multi-station GPS-supported photogrammetric net-work. The technique allows for tracking hundreds of glacier surface points at a measurement accuracy in the order of one decimeter, for typical glacier movement rates, and an almost arbitrarily high temporal resolution. The results show velocities of up to 16 meters per day. Numéro de notice : A2013-106 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.79.3.299 En ligne : https://doi.org/10.14358/PERS.79.3.299 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32244
in Photogrammetric Engineering & Remote Sensing, PERS > vol 79 n° 3 (March 2013) . - pp 299 - 306[article]Virtual worlds for photogrammetric image-based simulation and learning / Eduardo J. Piatti in Photogrammetric record, vol 28 n° 141 (March - May 2013)
[article]
Titre : Virtual worlds for photogrammetric image-based simulation and learning Type de document : Article/Communication Auteurs : Eduardo J. Piatti, Auteur ; José Luis Lerma, Auteur Année de publication : 2013 Article en page(s) : pp 27 - 42 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] données localisées 3D
[Termes IGN] image aérienne
[Termes IGN] image virtuelle
[Termes IGN] monde virtuel
[Termes IGN] restitution
[Termes IGN] simulation
[Termes IGN] visualisation 3DRésumé : (Auteur) Simulation is a common activity in many fields and pursuits, not only for teaching but also for learning, training, monitoring, research and entertainment, among others. This paper presents the criteria used to develop virtual scenarios for photogrammetric simulation based on both synthetic objects and synthetic images. The workflow used to generate three-dimensional (3D) virtual worlds is presented together with the subsequent reconstruction of the metric perspective images (synthetic scenes) emulating any type of frame camera in any kind of terrestrial or aerial set-up, the latter with an aeroplane, helicopter or unmanned aerial vehicle (UAV). A simulator can be used to create 3D virtual worlds in order to improve an understanding of mission planning, generate synthetic image sequences with suitable overlaps, as well as optimising image data acquisition before undertaking expensive photogrammetric surveys in the field. Numéro de notice : A2013-150 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/phor.12001 Date de publication en ligne : 29/01/2013 En ligne : https://doi.org/10.1111/phor.12001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32288
in Photogrammetric record > vol 28 n° 141 (March - May 2013) . - pp 27 - 42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-2013011 RAB Revue Centre de documentation En réserve L003 Disponible Automatic orientation and 3D modelling from markerless rock art imagery / J. Lerma in ISPRS Journal of photogrammetry and remote sensing, vol 76 (February 2013)
[article]
Titre : Automatic orientation and 3D modelling from markerless rock art imagery Type de document : Article/Communication Auteurs : J. Lerma, Auteur ; S. Navarro, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 64 - 75 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] appariement d'images
[Termes IGN] art rupestre
[Termes IGN] compensation par bloc
[Termes IGN] compensation par faisceaux
[Termes IGN] corrélation croisée normalisée
[Termes IGN] image terrestre
[Termes IGN] modélisation 3D
[Termes IGN] orientation d'image
[Termes IGN] SIFT (algorithme)
[Termes IGN] télémétrie laser terrestreRésumé : (Auteur) This paper investigates the use of two detectors and descriptors on image pyramids for automatic image orientation and generation of 3D models. The detectors and descriptors replace manual measurements and are used to detect, extract and match features across multiple imagery. The Scale-Invariant Feature Transform (SIFT) and the Speeded Up Robust Features (SURF) will be assessed based on speed, number of features, matched features, and precision in image and object space depending on the adopted hierarchical matching scheme. The influence of applying in addition Area Based Matching (ABM) with normalised cross-correlation (NCC) and least squares matching (LSM) is also investigated. The pipeline makes use of photogrammetric and computer vision algorithms aiming minimum interaction and maximum accuracy from a calibrated camera. Both the exterior orientation parameters and the 3D coordinates in object space are sequentially estimated combining relative orientation, single space resection and bundle adjustment. The fully automatic image-based pipeline presented herein to automate the image orientation step of a sequence of terrestrial markerless imagery is compared with manual bundle block adjustment and terrestrial laser scanning (TLS) which serves as ground truth. The benefits of applying ABM after FBM will be assessed both in image and object space for the 3D modelling of a complex rock art shelter. Numéro de notice : A2013-093 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.08.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.08.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32231
in ISPRS Journal of photogrammetry and remote sensing > vol 76 (February 2013) . - pp 64 - 75[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2013021 RAB Revue Centre de documentation En réserve L003 Disponible Combining terrestrial stereophotogrammetry, DGPS and GIS-based 3D voxel modelling in the volumetric recording of archaeological features / H. Orengo in ISPRS Journal of photogrammetry and remote sensing, vol 76 (February 2013)
[article]
Titre : Combining terrestrial stereophotogrammetry, DGPS and GIS-based 3D voxel modelling in the volumetric recording of archaeological features Type de document : Article/Communication Auteurs : H. Orengo, Auteur Année de publication : 2013 Article en page(s) : pp 49 - 55 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] acquisition d'images
[Termes IGN] archéométrie
[Termes IGN] géoréférencement indirect
[Termes IGN] GPS en mode différentiel
[Termes IGN] grotte
[Termes IGN] modélisation 3D
[Termes IGN] orthoimage
[Termes IGN] photogrammétrie métrologique
[Termes IGN] système d'information géographique
[Termes IGN] voxelRésumé : (Auteur) Archaeological recording of structures and excavations in high mountain areas is greatly hindered by the scarce availability of both space, to transport material, and time. The Madriu-Perafita-Claror, InterAmbAr and PCR Mont Lozère high mountain projects have documented hundreds of archaeological structures and carried out many archaeological excavations. These projects required the development of a technique which could record both structures and the process of an archaeological excavation in a fast and reliable manner. The combination of DGPS, close-range terrestrial stereophotogrammetry and voxel based GIS modelling offered a perfect solution since it helped in developing a strategy which would obtain all the required data on-site fast and with a high degree of precision. These data are treated off-site to obtain georeferenced orthoimages covering both the structures and the excavation process from which site and excavation plans can be created. The proposed workflow outputs also include digital surface models and volumetric models of the excavated areas from which topography and archaeological profiles were obtained by voxel-based GIS procedures. In this way, all the graphic recording required by standard archaeological practices was met. Numéro de notice : A2013-091 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.07.005 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.07.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32229
in ISPRS Journal of photogrammetry and remote sensing > vol 76 (February 2013) . - pp 49 - 55[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2013021 RAB Revue Centre de documentation En réserve L003 Disponible From LiDAR data to forest representation on multi-scale / Freiderike Schwarzbach in Cartographic journal (the), vol 50 n° 1 (February 2013)Permalinkn° 201 - Janvier 2013 (Bulletin de Revue Française de Photogrammétrie et de Télédétection) / Société française de photogrammétrie et de télédétectionPermalinkLa citerne El-Nabih à Alexandrie : un exemple d'utilisation de la photogrammétrie, de la lasergrammétrie et du modèle 3D sur un chantier de fouille archéologique / Laurent Borel in Revue Française de Photogrammétrie et de Télédétection, n° 201 (Janvier 2013)PermalinkPermalinkPermalinkPermalinkEvaluation absolue de méthodes de localisation et de reconstruction panoramique et photogrammétrique d'un tunnel à partir d'un nuage de points de référence appliquée au tunnel-canal de Niderviller / Paul Chavant (2013)PermalinkPermalinkPermalinkImpact of scale and quality of Digital Terrain Models on predictability of seabed terrain types / Lars Erikstad in Marine geodesy, vol 36 n° 1 (January - March 2013)PermalinkIntegrating radar and laser-based remote sensing techniques for monitoring structural deformation of archaeological monuments / Deodato Tapete in Journal of archaeological science, vol 40 n° 1 (January 2013)PermalinkLasergrammétrie et photogrammétrie appliquées à l'étude archéologique des châteaux médiévaux : Le programme Franco-Italien Aver - des montagnes de châteaux / L. 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