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Titre : Change detection from mobile laser scanning point clouds Titre original : Détection de changements à partir de nuages de points de cartographie mobile Type de document : Thèse/HDR Auteurs : Wen Xiao, Auteur ; Nicolas Paparoditis , Directeur de thèse ; Bruno Vallet , Encadrant Editeur : Champs/Marne : Université Paris-Est Marne-la-Vallée UPEM Année de publication : 2015 Importance : 110 p. Format : 21 x 30 cm Note générale : bibliographie
Thèse de doctorat présentée pour obtenir le grade de docteur Université Paris-Est, Ecole Doctorale MSTIC, spécialité Sciences et Technologies de l’Information GéographiqueLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] apprentissage dirigé
[Termes IGN] détection d'objet
[Termes IGN] détection de changement
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] instrumentation Riegl
[Termes IGN] objet mobile
[Termes IGN] semis de points
[Termes IGN] véhicule automobileMots-clés libres : occupancy-based method Index. décimale : THESE Thèses et HDR Résumé : (auteur) Mobile mapping systems are increasingly used for street environment mapping, especially mobile laser scanning technology enables precise street mapping, scene understanding, facade modelling, etc. In this research, the change detection from laser scanning point clouds is investigated. First of all, street environment change detection using RIEGL data is studied for the purpose of database updating and temporary object identification. An occupancy-based method is presented to overcome the challenges encountered by the conventional distance-based method, such as occlusion, anisotropic sampling. Occluded areas are identified by modelling the occupancy states within the laser scanning range. The gaps between points and scan lines are interpolated under the sensor reference framework, where the sampling density is isotropic. Even there are some conflicts on penetrable objects, e.g. trees, fences, the occupancy-based method is able to enhance the point-to-triangle distance-based method. The change detection method is also applied to data acquired by different laser scanners at different temporal-scales with the intention to have wider range of applications. The local sensor reference framework is adapted to Velodyne laser scanning geometry. The occupancy-based method is implemented to detection moving objects. Since the method detects the change of each point, moving objects are detect at point level. As the Velodyne scanner constantly scans the surroundings, the trajectories of moving objects can be detected. A simultaneous detection and tracking algorithm is proposed to recover the pedestrian trajectories in order to accurately estimate the traffic flow of pedestrian in public places. Changes can be detected not only at point level, but also at object level. The changes of cars parking on street sides at different times are detected to help regulate on-street car parking since the parking duration is limited. In this case, cars are detected in the first place, then they are compared with corresponding ones. Apart from car changes, parking positions and car types are also important information for parking management. All the processes are solved in a supervised learning framework. Furthermore, a model-based car reconstruction method is proposed to precisely locate cars. The model parameters are also treated as car features for better decision making. Moreover, the geometrically accurate models can be used for visualization purposes. Under the theme of change detection, related topics, e.g. tracking, classification, modelling, are also studied for the reason of practical applications. More importantly, the change detection methods are applied to different data acquisition geometries at multiple temporal-scales. Both bottom-up (point-based) and top-down (object-based) change detection strategies are investigated. Note de contenu : 1 Introduction
1.1 Motivation
1.1.1 Fine-scale change detection
1.1.2 Applications
1.2 Problems
1.3 Mobile mapping system and data
1.3.1 REIGL laser scanner
1.3.2 Velodyne laser scanner
1.4 Objectives
1.5 Structure
1.6 Contribution
2 State-of-the-art
2.1 Change detection methods
2.2 Change detection from imageries
2.3 Change detection from airborne lidar data
2.4 Change detection from terrestrial lidar data
2.5 Change detection in related domains
3 Street Environment Change Detection
3.1 Introduction
3.2 Contribution
3.3 Occupancy-based change detection
3.3.1 Laser Scanning Geometry
3.3.2 Occupancy modelling for an individual ray
3.3.3 Occupancy fusion and corresponding point retrieval
3.3.4 Consistency assessment between different epochs
3.4 Combination with distance-based change detection
3.5 Experiments and result
3.6 Evaluation and discussion
3.7 Conclusion
4 Simultaneous detection and tracking of pedestrian
4.1 Introduction
4.2 Related work
4.2.1 Pedestrian tracking in computer vision
4.2.2 Pedestrian tracking using laser scanning data
4.3 Methodology
4.3.1 Moving object detection
4.3.2 Simultaneous detection and tracking of pedestrian
4.3.3 Optimization
4.4 Experiments and results
4.4.1 Moving object detection
4.4.2 Pedestrian tracking
4.5 Discussions
4.6 Conclusion
5 Street-side car detection, classification and change detection
5.1 Introduction
5.2 Related work
5.2.1 Vehicle detection
5.2.2 Vehicle modelling
5.3 Methodology
5.3.1 Segmentation and feature extraction
5.3.2 Car modelling
5.3.3 Car recognition and localization
5.3.4 Car classification
5.3.5 Change detection
5.4 Experiments and results
5.4.1 Segmentation
5.4.2 Car modelling
5.4.3 Car recognition
5.4.4 Car classification
5.4.5 Change detection
5.5 Conclusion
6 Conclusion and perspectives
6.1 Summary
6.2 Conclusion
6.3 PerspectivesNuméro de notice : 17339 Affiliation des auteurs : LASTIG MATIS (2012-2019) Thématique : IMAGERIE/INFORMATIQUE Nature : Thèse française Note de thèse : Thèse de doctorat : Sciences et Technologies de l’Information Géographique : Paris-Est : 2015 Organisme de stage : MATIS (IGN) nature-HAL : Thèse DOI : sans En ligne : https://theses.hal.science/tel-01373359 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83191 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 Further adventures in aviation / Lewis Graham in GEO: Geoconnexion international, vol 14 n° 1 (January 2015)
[article]
Titre : Further adventures in aviation Type de document : Article/Communication Auteurs : Lewis Graham, Auteur Année de publication : 2015 Article en page(s) : pp 26 - 27 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] droneRésumé : (auteur) Getting a UAV in the air is one thing - acquering accurate and useful data is quite another. Lewis Graham explains the difficulties not only in choosing a camera but in getting it to take pictures. Numéro de notice : A2015-046 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75227
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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)
Kite-borne photogrammetry for decimetric 3D mapping of several square kilometres areas / Denis Feurer (2015)
Titre : Kite-borne photogrammetry for decimetric 3D mapping of several square kilometres areas Type de document : Article/Communication Auteurs : Denis Feurer, Auteur ; Mohamed A. El Maaoui, Auteur ; Olivier Planchon, Auteur ; Mohamed-Rached Boussema, Auteur ; Marc Pierrot-Deseilligny , Auteur Editeur : New York : Institute of Electrical and Electronics Engineers IEEE Année de publication : 2015 Conférence : IGARSS 2015, International Geoscience And Remote Sensing Symposium 26/07/2015 31/07/2015 Milan Italie Proceedings IEEE Importance : pp 3858 - 3861 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] cerf-volant
[Termes IGN] modèle numérique de surface
[Termes IGN] orthoimageRésumé : (auteur) This paper presents a new methodology for the calculation of a digital elevation model (DEM) and the corresponding orthophotography at very high resolution (20 cm for the DEM, 10 cm for the orthophotography) on a large surface (more than 3 km2). Image acquisition was done with an off-the-shelf camera (Sony NEX-5N) attached to a delta kite. Developing the most accessible methodology being one of the goals of this study, the overall cost of the apparatus is limited to less than 1500 euros. This method has been developed to form an alternative with acquisitions from small Unmanned Aerial Vehicles (UAV). In particular, kite as payload carrier is seen as being complementary to lightweight multicopters, which are increasingly used for remote sensing applications. Kite is of a strong interest when the use of radio-controlled and motorized systems is hampered by local regulation and/or when too strong winds keep these lightweight devices on ground. Numéro de notice : C2015-057 Affiliation des auteurs : LASTIG LOEMI+Ext (2012-2019) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1109/IGARSS.2015.7326666 Date de publication en ligne : 12/11/2015 En ligne : http://dx.doi.org/10.1109/IGARSS.2015.7326666 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91803 PermalinkMétrologie par photogrammétrie aéroportée légère : application au suivi d'évolution de digues / Vincent Tournadre (2015)PermalinkPermalinkPhotogrammétrie et modélisation 3D à partir d'images drone au sein de TPLM-3D / Thibaut Dudka (2015)PermalinkPermalinkVisualization, statistical analysis, and mining of historical vessel data / Sabarish Senthilnathan Muthu (2015)PermalinkAcquisition par drone pour les relevés topographiques / Marie Grob in XYZ, n° 141 (décembre 2014 - février 2015)PermalinkDrones : quels usages pour la topographie ? / Guy Houin in XYZ, n° 141 (décembre 2014 - février 2015)PermalinkLes drones révolutionnent l'administration foncière, une cartographie sur mesure / Kathrine Kelm in XYZ, n° 141 (décembre 2014 - février 2015)PermalinkEvaluating tree detection and segmentation routines on very high resolution UAV LiDAR data / Luke Wallace in IEEE Transactions on geoscience and remote sensing, vol 52 n° 12 (December 2014)Permalink