| Titre : |
Métrologie 100% automatique par photogrammétrie aéroportée légère et GPS de précision permanent et embarqué, application au suivi de digues |
| Type de document : |
Thèse/HDR |
| Auteurs : |
Yilin Zhou, Auteur ; Marc Pierrot-Deseilligny  , Directeur de thèse |
| Editeur : |
Champs/Marne : Université Paris-Est Marne-la-Vallée UPEM |
| Année de publication : |
2019 |
| Importance : |
181 p. |
| Format : |
21 x 30 cm |
| Note générale : |
bibliographie
Thèse de Doctorat de l'Université Paris-Est, Spécialité : Sciences et Technologies de l'Information Géographique |
| Langues : |
Anglais (eng) |
| Descripteur : |
[Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes descripteurs IGN] angle nadiral
[Termes descripteurs IGN] digue
[Termes descripteurs IGN] données GNSS
[Termes descripteurs IGN] effet thermique
[Termes descripteurs IGN] étalonnage de chambre métrique
[Termes descripteurs IGN] image aérienne
[Termes descripteurs IGN] image aérienne oblique
[Termes descripteurs IGN] image de drone
[Termes descripteurs IGN] modélisation 3D
[Termes descripteurs IGN] obturateur
[Termes descripteurs IGN] photogrammétrie métrologique
[Termes descripteurs IGN] point d'appui
[Termes descripteurs IGN] réseau fluvial
|
| Résumé : |
(auteur) The development of unmanned aerial vehicle (UAV) platform makes it nowadays a valuable source of data for inspection, surveillance, mapping and 3D modeling issues. UAV photogrammetry opens various new applications in close-range aerial domain and introduces a low-cost alternative to classical manned vehicle photogrammetry. Corridor mapping, one of the fields with substantial importance for UAV photo-grarnmetry, is largely demanded in the surveillance and management of infrastructure assets — highways, railways, waterways and pipelines. Due to the special geometry of the scene, corridor mapping is one case that needs taking precautions. Errors accumu-late easily on the longer dimension of the scene and a bowl effect is often observed; the flatness of the scene introduces strong correlations between parameters to be determi-ned, these two factors together, make it more difficult to obtain high accuracy results in corridor configuration than in classical ones. This thesis is a research project initiated by the CNR, a river concessionary, which has the responsibility of the maintenance and surveillance of its hydraulic facilities, more particularly the dikes. The objective is to apply UAV photogrammetry, which is faster, cheaper and offers a 3D dense reconstruction of the scene, to the monitoring of dikes. While maintaining a high surveying accuracy, a reduced field work, i.e. the number of ground control points (GCPs) is expected. In the first place, simulations are carried out to gain an insight of several problems of corridor mapping that impact the final accuracy. Then, thorough investigations are conducted on three aspects that interest us the most. The first study focuses on the aerial acquisition geometry, discussions are given on the influence of oblique images, nadir images of different flight heights as well as the possibility of an in-flight camera calibration and its application on unfavourable acquisition geometry. The second study aims to improve the acquisition performance for high-end metric cameras. The image deformation introduced by camera temperature variation is investigated and modelled. A method for the correction of this thermal effect is proposed, its performance is eva-luated on both terrestrial and aerial datasets of corridor configuration. The last study interests in the rolling shutter effect for consumer-grade cameras, which is commonly seen in UAV platforms on the market. Two methods are presented to calibrate the camera readout time, a property that is often not given by camera manufacturers. A two-step method is proposed for the correction of rolling shutter effect, its performance is evaluated in both block and corridor configurations. |
| Note de contenu : |
1- Introduction en français
2- Introduction
3- State of the art
4- Simulation and analysis
5- Study of aerial acquisition geometry
6- Study of thermal effect
7- Study of rolling shutter effect
8- Conclusion and perspective |
| Numéro de notice : |
25522 |
| Thématique : |
IMAGERIE |
| Nature : |
Thèse française |
| Note de thèse : |
Thèse de Doctorat : Sciences et Technologies de l'Information Géographique : Paris-Est : 2019 |
| Organisme de stage : |
Lastig (IGN) |
| Permalink : |
https://documentation.ensg.eu/index.php?lvl=notice_display&id=94383 |
|
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externesCo‐registration of panoramic mobile mapping images and oblique aerial images in Photogrammetric record, vol 34 n° 166 (June 2019)
Impact of oblique UAV imagery on canopy models (2019)
Métrologie 100% automatique par photogrammétrie aéroportée légère et GPS de précision permanent et embarqué, application au suivi de digues (2019)
EuroSDR contributions to ISPRS Congress XXIII, 12 - 19 July 2016, Special Session 12 – EuroSDR Prague, Czech Republic (02/2017)
