Détail d'une collection
Documents disponibles dans la collection (162)
![](./images/expand_all.gif)
![](./images/collapse_all.gif)
![Tris disponibles](./images/orderby_az.gif)
Exterior orientation of hyperspectral frame images collected with UAV for forest applications / Adilson Berveglieri (2015)
![]()
Titre : Exterior orientation of hyperspectral frame images collected with UAV for forest applications Type de document : Article/Communication Auteurs : Adilson Berveglieri, Auteur ; Antonio Maria Garcia Tommaselli, Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2015 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 40-3/W4 Conférence : EuroCOW 2016, the European Calibration and Orientation Workshop 10/02/2016 12/02/2016 Lausanne Suisse ISPRS OA Archives Importance : pp 45 - 50 Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] Brésil
[Termes IGN] compensation par faisceaux
[Termes IGN] drone
[Termes IGN] forêt tropicale
[Termes IGN] image hyperspectrale
[Termes IGN] orientation externe
[Termes IGN] point d'appui
[Termes IGN] récepteur bifréquenceRésumé : (auteur) This paper describes a preliminary study on the image orientation acquired by a hyperspectral frame camera for applications in small tropical forest areas with dense vegetation. Since access to the interior of forests is complicated and Ground Control Points (GCPs) are not available, this study conducts an assessment of the altimetry accuracy provided by control targets installed on one border of an image block, simulating it outside a forest. A lightweight Unmanned Aerial Vehicle (UAV) was equipped with a hyperspectral camera and a dual-frequency GNSS receiver to collect images at two flying strips covering a vegetation area. The assessment experiments were based on Bundle Block Adjustment (BBA) with images of two spectral bands (from two sensors) using several weighted constraints in the camera position. Trials with GCPs (presignalized targets) positioned only on one side of the image block were compared with trials using GCPs in the corners. Analyses were performed on altimetry discrepancies obtained from altimetry checkpoints. The results showed a discrepancy in Z coordinate of approximately 40 cm using the proposed technique, which is sufficient for applications in forests. Numéro de notice : C2016-002 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Communication En ligne : http://dx.doi.org/10.5194/isprs-archives-XL-3-W4-45-2016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80321 Extraction of optimal spectral bands using hierarchical band merging out of hyperspectral data / Arnaud Le Bris (2015)
![]()
Titre : Extraction of optimal spectral bands using hierarchical band merging out of hyperspectral data Type de document : Article/Communication Auteurs : Arnaud Le Bris , Auteur ; Nesrine Chehata
, Auteur ; Xavier Briottet
, Auteur ; Nicolas Paparoditis
, Auteur
Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2015 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 40-3/W3 Projets : HYEP / Weber, Christiane Conférence : ISPRS 2015, Geospatial Week : Laserscanning, ISSDQ, CMRT, ISA, GeoVIS, GeoBigData 28/09/2015 03/10/2015 La Grande Motte France ISPRS OA Archives Importance : pp 459 - 465 Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] fusion de données
[Termes IGN] image hyperspectraleRésumé : (auteur) Spectral optimization consists in identifying the most relevant band subset for a specific application. It is a way to reduce hyperspectral data huge dimensionality and can be applied to design specific superspectral sensors dedicated to specific land cover applications. Spectral optimization includes both band selection and band extraction. On the one hand, band selection aims at selecting an optimal band subset (according to a relevance criterion) among the bands of a hyperspectral data set, using automatic feature selection algorithms. On the other hand, band extraction defines the most relevant spectral bands optimizing both their position along the spectrum and their width. The approach presented in this paper first builds a hierarchy of groups of adjacent bands, according to a relevance criterion to decide which adjacent bands must be merged. Then, band selection is performed at the different levels of this hierarchy. Two approaches were proposed to achieve this task : a greedy one and a new adaptation of an incremental feature selection algorithm to this hierarchy of merged bands. Numéro de notice : C2015-007 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/isprsarchives-XL-3-W3-459-2015 Date de publication en ligne : 20/08/2015 En ligne : http://dx.doi.org/10.5194/isprsarchives-XL-3-W3-459-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80297 Homogeneous geovisualization of coastal areas from heterogeneous spatio-temporal data / Antoine Masse (2015)
![]()
Titre : Homogeneous geovisualization of coastal areas from heterogeneous spatio-temporal data Type de document : Article/Communication Auteurs : Antoine Masse , Auteur ; Sidonie Christophe
, Auteur
Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2015 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 40-3/W3 Conférence : ISPRS 2015, Geospatial Week : Laserscanning, ISSDQ, CMRT, ISA, GeoVIS, GeoBigData 28/09/2015 03/10/2015 La Grande Motte France ISPRS OA Archives Importance : pp 509 - 516 Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] données hétérogènes
[Termes IGN] données localisées
[Termes IGN] données spatiotemporelles
[Termes IGN] estran
[Termes IGN] géovisualisation
[Termes IGN] imprécision des données
[Termes IGN] intégration de données
[Termes IGN] littoral
[Termes IGN] profondeur
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) On coastal areas, recent increase in production of open-access high-quality data over large areas reflects high interests in modeling and geovisualization, especially for applications of sea level rise prediction, ship traffic security and ecological protection. Research interests are due to tricky challenges from the intrinsic nature of the coastal area, which is composed of complex geographical objects of which spatial extents vary in time, especially in the intertidal zone (tides, sands, etc.). Another interest is the complex modeling of this area based on imprecise cartographic objects (coastline, highest/lowest water level, etc.). The challenge of visualizing such specific area comes thus from 3D+t information, i.e. spatio-temporal data, and their visual integration.
In this paper, we present a methodology for geovisualization issues over coastal areas. The first challenge consists in integrating multi-source heterogeneous data, i.e. raster and vector, terrestrial and hydrographic data often coming from various ‘paradigms’, while providing a homogeneous geovisualization of the coastal area and in particular the phenomenon of the water depth. The second challenge consists in finding various possibilities to geovisualize this dynamic geographical phenomenon in controlling the level of photorealism in hybrid visualizations. Our approach is based on the use of a high-resolution Digital Terrain Model (DTM) coming from high resolution LiDAR data point cloud, tidal and topographic data. We present and discuss homogeneous hybrid visualizations, based on LiDAR and map, and on, LiDAR and orthoimagery, in order to enhance the realism while considering the water depth.Numéro de notice : C2015-006 Affiliation des auteurs : LASTIG COGIT (2012-2019) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/isprsarchives-XL-3-W3-509-2015 Date de publication en ligne : 19/08/2015 En ligne : http://dx.doi.org/10.5194/isprsarchives-XL-3-W3-509-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80296
Titre : ISPRS Geospatial Week 2015 : Proceedings Type de document : Actes de congrès Auteurs : Clément Mallet , Éditeur scientifique ; Nicolas Paparoditis
, Éditeur scientifique ; Ian J. Dowman, Éditeur scientifique ; Sander J. Oude Elberink, Éditeur scientifique ; Ana-Maria Raimond
, Éditeur scientifique ; George Sithole, Éditeur scientifique ; G. Rabatel, Éditeur scientifique ; Franz Rottensteiner, Éditeur scientifique ; Xavier Briottet
, Éditeur scientifique ; Sidonie Christophe
, Éditeur scientifique ; Arzu Çöltekin, Éditeur scientifique ; G. Patanè, Éditeur scientifique
Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2015 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 40-3/W3 Conférence : ISPRS 2015, Geospatial Week : Laserscanning, ISSDQ, CMRT, ISA, GeoVIS, GeoBigData 28/09/2015 03/10/2015 La Grande Motte France ISPRS OA Archives Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse spatiale
[Termes IGN] cartographie d'urgence
[Termes IGN] données localisées
[Termes IGN] données massives
[Termes IGN] drone
[Termes IGN] géovisualisation
[Termes IGN] image hyperspectrale
[Termes IGN] lasergrammétrie
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] qualité des donnéesNote de contenu : - Laserscanning [Traitement de données lidar]
- ISSDQ, International Symposium on Spatial Data Quality [Qualité des données géospatiales]
- CMRT, City Models, Roads and Traffics [Modèles de villes, de routes et de trafic]
- Gi4DM, Geoinformation for Disaster management [Cartographie d'urgence]
- GeoUAV, civil Unmanned Aerial Vehicles for geospatial data acquisition [Drônes civils pour l'acquisition de données géospatiales]
- GeoHyper, Geospatial Hyperspectral [Acquisition et traitement de données hyperspectrales]
- GeoVIS, Geospatial data Visualization [Visualisation de données géospatiales hétérogènes]
- GeoBigData, [Management, traitement et visualisation de données géospatiales massives]
- Geospatial Analysis [Analyse géospatiale]Numéro de notice : 17115 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Thématique : IMAGERIE Nature : Actes nature-HAL : DirectOuvrColl/Actes DOI : sans Date de publication en ligne : 19/10/2015 En ligne : http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3-W3/index.htm [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79912 Contient
- Distributed dimensonality-based rendering of lidar point clouds / Mathieu Brédif (2015)
- 3D octree based watertight mesh generation from ubiquitous data / Laurent Caraffa (2015)
- Homogeneous geovisualization of coastal areas from heterogeneous spatio-temporal data / Antoine Masse (2015)
- Extraction of optimal spectral bands using hierarchical band merging out of hyperspectral data / Arnaud Le Bris (2015)
- UAV linear photogrammetry / Vincent Tournadre (2015)
- Generalisation and data quality / Nicolas Regnauld (2015)
- UAV onboard photogrammetry and GPS positioning for earthworks / Mehdi Daakir (2015)
- Coastal digital surface model on low contrast images / Ana-Maria Rosu (2015)
Titre : UAV linear photogrammetry Type de document : Article/Communication Auteurs : Vincent Tournadre , Auteur ; Marc Pierrot-Deseilligny
, Auteur ; Paul-Henri Faure, Auteur
Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2015 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 40-3/W3 Conférence : ISPRS 2015, Geospatial Week : Laserscanning, ISSDQ, CMRT, ISA, GeoVIS, GeoBigData 28/09/2015 03/10/2015 La Grande Motte France ISPRS OA Archives Importance : pp 327 - 333 Format : 21 x 30 cm Note générale : bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] compensation par faisceaux
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] image oblique
[Termes IGN] MicMac
[Termes IGN] module d'extensionRésumé : (auteur) The photogrammetric treatment of images acquired on a linear axis is a problematic case. Such tricky configurations often leads to bended 3D models, described as a bowl effect, which requires ground measurements to be fixed. This article presents different solutions to overcome that problem. All solutions have been implemented into the free open-source photogrammetric suite MicMac. The article presents the lasts evolutions of MicMac's bundle adjustment core, as well as some extended calibration models and how they fit for the camera evaluated. The acquisition process is optimized by presenting how oblique images can improve the accuracy of the orientations, while the 3D models accuracies are assessed by producing a millimeter accurate ground truth from terrestrial photogrammetry. Numéro de notice : C2015-008 Affiliation des auteurs : LASTIG LOEMI+Ext (2012-2019) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/isprsarchives-XL-3-W3-327-2015 Date de publication en ligne : 19/08/2015 En ligne : http://dx.doi.org/10.5194/isprsarchives-XL-3-W3-327-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80298 PermalinkUAV photogrammetry to monitor dykes-calibration and comparaison to terrestrial Lidar / Vincent Tournadre (2014)
PermalinkPermalinkFirst, do no harm : Eliminating systematic error in analytical results of GIS applications / Nicholas Chrisman (2013)
PermalinkPermalinkPhotographer-friendly work-flows for imaged-based modelling of heritage artefacts / Nicolas Martin-Beaumont (2013)
PermalinkQuality evaluation of 3D city building models with automatic error diagnosis / Jean-Christophe Michelin (2013)
PermalinkExtracting precise and affordable DEMs despite of the clouds. Ajax: the joining of radar and optical strengths / Laurent Cunin (2012)
PermalinkProceedings, Commission 1, XXII ISPRS Congress, 25 August – 01 September 2012, Melbourne, Australia / M. Shortis (2012)
PermalinkProceedings, Commission 3, XXII ISPRS Congress, 25 August – 01 September 2012, Melbourne, Australia / M. Shortis (2012)
Permalink
Archives ISSN Number: 1682-1750 for hard copy (Print)
Archives ISSN Number: 1682-1777 for soft copy (CD-ROM)
The ISPRS Archives is the series of proceedings for publications accepted after abstract review. ... Both are listed in the ISI Conference Proceedings Citation Index (CPCI) of the Web of Science, SCOPUS, and DOAJ.
au moins à partir de 2003