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Incremental road network update method with trajectory data and UAV remote sensing imagery / Jianxin Qin in ISPRS International journal of geo-information, vol 11 n° 10 (October 2022)
[article]
Titre : Incremental road network update method with trajectory data and UAV remote sensing imagery Type de document : Article/Communication Auteurs : Jianxin Qin, Auteur ; Wenjie Yang, Auteur ; Tao Wu, Auteur ; et al., Auteur Année de publication : 2022 Article en page(s) : n° 502 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] apprentissage profond
[Termes IGN] données spatiotemporelles
[Termes IGN] extraction du réseau routier
[Termes IGN] image captée par drone
[Termes IGN] mise à jour de base de données
[Termes IGN] modèle de Markov caché
[Termes IGN] OpenStreetMap
[Termes IGN] réseau routier
[Termes IGN] segmentation
[Termes IGN] trace au solRésumé : (auteur) GPS trajectory and remote sensing data are crucial for updating urban road networks because they contain critical spatial and temporal information. Existing road network updating methods, whether trajectory-based (TB) or image-based (IB), do not integrate the characteristics of both types of data. This paper proposed and implemented an incremental update method for rapid road network checking and updating. A composite update framework for road networks is established, which integrates trajectory data and UAV remote sensing imagery. The research proposed utilizing connectivity between adjacent matched points to solve the problem of updating problematic road segments in networks based on the features of the Hidden Markov Model (HMM) map-matching method in identifying new road segments. Deep learning is used to update the local road network in conjunction with the flexible and high-precision characteristics of UAV remote sensing. Additionally, the proposed method is evaluated against two baseline methods through extensive experiments based on real-world trajectories and UAV remote sensing imagery. The results show that our method has higher extraction accuracy than the TB method and faster updates than the IB method. Numéro de notice : A2022-791 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.3390/ijgi11100502 Date de publication en ligne : 27/09/2022 En ligne : https://doi.org/10.3390/ijgi11100502 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101904
in ISPRS International journal of geo-information > vol 11 n° 10 (October 2022) . - n° 502[article]Exploiting light directionality for image-based 3D reconstruction of non-collaborative surfaces / Ali Karami in Photogrammetric record, vol 37 n° 177 (March 2022)
[article]
Titre : Exploiting light directionality for image-based 3D reconstruction of non-collaborative surfaces Type de document : Article/Communication Auteurs : Ali Karami, Auteur ; Fabio Menna, Auteur ; Fabio Remondino, Auteur ; et al., Auteur Année de publication : 2022 Article en page(s) : pp 111 - 138 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] appariement d'images
[Termes IGN] axe de prise de vue
[Termes IGN] étalonnage
[Termes IGN] figure géométrique
[Termes IGN] point d'appui
[Termes IGN] points homologues
[Termes IGN] rayonnement lumineux
[Termes IGN] reconstruction 3D
[Termes IGN] reconstruction d'objet
[Termes IGN] semis de pointsRésumé : (auteur) Three-dimensional (3D) measurement of non-collaborative surfaces is still an open research topic. This paper investigates and quantifies for the first time the effect of light directionality and fusion of multiple images as a method to improve the quality of photogrammetric 3D reconstruction. For this aim, an image acquisition system that employs multiple light sources was developed to highlight the roughness and microstructures of the object under investigation. Images were captured at various grazing angles to highlight the local surface roughness and microstructures. Individual point clouds, created using images taken at different grazing angles, were produced using dense image-matching techniques. These point clouds were then compared against different 3D photogrammetric reconstructions obtained from a pre-processing of the acquired images based on diffuse lighting, median and average images. Experiments showed that exploiting light directionality significantly improves image-matching quality. Furthermore, depending on the light direction, the root mean square (RMS) error of the 3D surfaces obtained using the proposed system were up to 50% less than those created by traditional diffuse lighting. Numéro de notice : A2022-208 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/phor.12400 Date de publication en ligne : 07/03/2022 En ligne : https://doi.org/10.1111/phor.12400 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100218
in Photogrammetric record > vol 37 n° 177 (March 2022) . - pp 111 - 138[article]Developing the potential of airborne lidar systems for the sustainable management of forests / Karun Dayal (2022)
Titre : Developing the potential of airborne lidar systems for the sustainable management of forests : accounting for and managing the impacts of lidar scan angle on ABA model predictions of forest attributes Type de document : Thèse/HDR Auteurs : Karun Dayal, Auteur ; Sylvie Durrieu, Directeur de thèse ; Marc Bouvier, Directeur de thèse Editeur : Paris, Nancy, ... : AgroParisTech (2007 -) Année de publication : 2022 Note générale : Bibliographie
Thèse pour obtenir le grade de Docteur de l’Institut national des sciences et industries du vivant et de l'environnement - AgroParisTech, Spécialité GéomatiqueLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] angle de visée
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] forêt alpestre
[Termes IGN] forêt ripicole
[Termes IGN] gestion durable
[Termes IGN] inventaire forestier national (données France)
[Termes IGN] jeu de données localisées
[Termes IGN] ligne de visée
[Termes IGN] modèle numérique de surface de la canopée
[Termes IGN] peuplement forestier
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] prédiction
[Termes IGN] réseau neuronal artificiel
[Termes IGN] télémètre laser à balayage
[Termes IGN] télémètre laser aéroportéIndex. décimale : THESE Thèses et HDR Résumé : (Auteur) L’information mesurée par Lidar aéroporté dépend de la végétation observée et de la géométrie de l'acquisition lidar, elle-même fonction des paramètres d'acquisition et des propriétés du terrain. Cette thèse vise à comprendre la relation entre la géométrie d'acquisition du lidar et les prédictions d'attributs forestiers en se focalisant sur l'évaluation et la gestion des impacts de l'angle de balayage du lidar sur les métriques lidar et les modèles construits à l’échelle du peuplement (i.e. approches surfaciques ou ABA). Quatre types de forêts différents ont été étudiés, dont trois types de forêts (feuillus, conifères et mixtes) en terrain montagneux et un type de forêt (ripisylve) en terrain relativement plat . La thèse est divisée en trois parties. La première partie évalue l'effet de l'angle de balayage du lidar sur les mesures lidar couramment utilisées dans les prédictions de type ABA. On a ainsi montré que les différentes métriques lidar ne sont pas impactées de la même façon par des changements d'angle de balayage. La deuxième partie de l'étude s’intéresse aux conséquences sur la qualité des modèles de l’introduction dans ces modèles de métriques lidar présentant des sensibilités différentes à l'angle de balayage. Un modèle basé sur un jeu de métriques Lidar prédéfinies, plus ou moins sensibles aux angles de balayage, est utilisé.Les jeux de données lidar existants sont ré-échantillonnés selon les lignes de vol pour 1) simuler des acquisitions lidar avec différentes configurations de balayage, 2) construire des modèles pour une série de configurations de balayage différentes, et 3) comparer la qualité des estimations qui résultent de chaque configuration d’acquisition. Ces comparaisons montrent que l’introduction de métriques sensibles à l’angle de balayage diminue la robustesse des modèles. De plus, la variation de la précision des modèles ABA s’est révélée être plus élevée pour les jeux de données composés de nuages de points acquis depuis une seule ligne de vol que pour ceux composés de nuages de points obtenus en combinant les mesures de plusieurs lignes de vol.Nous avons aussi tenté de normaliser les métriques lidar en utilisant des méthodes de voxellisation pour limiter les impacts des changements d’angles de balayage. Les métriques issues des données voxellisées contribuent à augmenter la précision des prédictions ou à augmenter leur justesse, ou, dans certains cas, les deux en même temps. Dans la dernière partie de l'étude, les propriétés du terrain (topographie) et les paramètres d'acquisition sont explicitement pris en compte dans les modèles. Comme les interactions entre les paramètres d'acquisition lidar, le terrain et les propriétés de la végétation peuvent être complexes, un réseau de neurone (perceptron multicouche) est utilisé pour modéliser les relations entre les attributs forestiers et les métriques lidar en tenant compte de ces interactions entre métriques lidar et géométrie d'acquisition. Cela a permis d'améliorer significativement les prédictions ABA. Note de contenu : Chapter 1: Introduction
1.1 Sustainable Forest Management
1.2 The role of remote sensing in enhancing forest inventory
1.3 Enhanced forest inventory with lidar
1.4 Understanding the role of lidar scan angle in forestry applications
1.5 Research questions and objectives
1.6 Overview of the thesis
Chapter 2: Scan angle impact on lidar-derived metrics used in ABA models for prediction of forest
stand characteristics: a grid based analysis
2.1 Introduction
2.2 Materials
2.3 Methods
2.4 Results
2.5 Discussion
2.6 Conclusions
2.7 Acknowledgement
Chapter 3: An investigation into lidar scan angle impacts on stand attribute predictions in different
forest environments
3.1 Introduction
3.2 Materials and methods
3.3 Results
3.5 Conclusion
3.6 Acknowledgements
Chapter 4: Improving ABA models for forest attribute prediction using neural networks by considering effects of terrain and scan angles on 3D lidar point clouds
4.1 Introduction
4.2 Materials and methods
4.3 Results
4.4 Discussion
4.5 Conclusion
Chapter 5: Conclusion
5.1 Synthesis of the thesis
5.2 Limitations and PerspectivesNuméro de notice : 26957 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Thèse française Note de thèse : Thèse de Doctorat : Géomatique : Université Paris-Saclay : 2022 Organisme de stage : UMR TETIS - Territoires, Environnement, Télédétection et Information Spatiale nature-HAL : Thèse DOI : sans Date de publication en ligne : 24/01/2023 En ligne : https://hal.science/tel-03954492 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102527 Urban geospatial information acquisition mobile mapping system based on close-range photogrammetry and IGS site calibration / Ming Guo in Geo-spatial Information Science, vol 24 n° 4 (October 2021)
[article]
Titre : Urban geospatial information acquisition mobile mapping system based on close-range photogrammetry and IGS site calibration Type de document : Article/Communication Auteurs : Ming Guo, Auteur ; Yuquan Zhou, Auteur ; Jianghong Zhao, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : pp 558 - 579 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] coordonnées GNSS
[Termes IGN] couplage GNSS-INS
[Termes IGN] données lidar
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] orientation du capteur
[Termes IGN] précision des mesures
[Termes IGN] Ransac (algorithme)
[Termes IGN] semis de points
[Termes IGN] station GNSS
[Termes IGN] système de numérisation mobile
[Termes IGN] zone urbaineRésumé : (auteur) The measurement accuracy of the Mobile Mapping System (MMS) is the main problem, which restricts its development and application, so how to calibrate the MMS to improve its measurement accuracy has always been a research hotspot in the industry. This paper proposes a position and attitude calibration method with error correction based on the combination of the feature point and feature surface. First, the initial value of the spatial position relationship between each sensor of MMS is obtained by close-range photogrammetry. Second, the optimal solution for error correction is calculated by feature points in global coordinates jointly measured with International GNSS Service (IGS) stations. Then, the final transformation parameters are solved by combining the initial values obtained originally, thereby realizing the rapid calibration of the MMS. Finally, it analyzed the RMSE of MMS point cloud after calibration, and the results demonstrate the feasibility of the calibration approach proposed by this method. Under the condition of a single measurement sensor accuracy is low, the plane and elevation absolute accuracy of the point cloud after calibration can reach 0.043 m and 0.072 m, respectively, and the relative accuracy is smaller than 0.02 m. It meets the precision requirements of data acquisition for MMS. It is of great significance for promoting the development of MMS technology and the application of some novel techniques in the future, such as autonomous driving, digital twin city, urban brain et al. Numéro de notice : A2021-128 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/10095020.2021.1924084 Date de publication en ligne : 20/08/2021 En ligne : https://doi.org/10.1080/10095020.2021.1924084 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99354
in Geo-spatial Information Science > vol 24 n° 4 (October 2021) . - pp 558 - 579[article]A unified framework of bundle adjustment and feature matching for high-resolution satellite images / Xiao Ling in Photogrammetric Engineering & Remote Sensing, PERS, vol 87 n° 7 (July 2021)
[article]
Titre : A unified framework of bundle adjustment and feature matching for high-resolution satellite images Type de document : Article/Communication Auteurs : Xiao Ling, Auteur ; Xu Huang, Auteur ; Rongjun Qin, Auteur Année de publication : 2021 Article en page(s) : pp 485 - 490 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] appariement d'images
[Termes IGN] compensation par faisceaux
[Termes IGN] corrélation à l'aide de traits caractéristiques
[Termes IGN] image à haute résolution
[Termes IGN] orientation du capteur
[Termes IGN] précision radiométriqueRésumé : (Auteur) Bundle adjustment (BA) is a technique for refining sensor orientations of satellite images, while adjustment accuracy is correlated with feature matching results. Feature matching often contains high uncertainties in weak/repeat textures, while BA results are helpful in reducing these uncertainties. To compute more accurate orientations, this article incorporates BA and feature matching in a unified framework and formulates the union as the optimization of a global energy function so that the solutions of the BA and feature matching are constrained with each other. To avoid a degeneracy in the optimization, we propose a comprised solution by breaking the optimization of the global energy function into two-step suboptimizations and compute the local minimums of each suboptimization in an incremental manner. Experiments on multi-view high-resolution satellite images show that our proposed method outperforms state-of-the-art orientation techniques with or without accurate least-squares matching. Numéro de notice : A2021-571 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.14358/PERS.87.7.485 Date de publication en ligne : 01/07/2021 En ligne : https://doi.org/10.14358/PERS.87.7.485 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=98163
in Photogrammetric Engineering & Remote Sensing, PERS > vol 87 n° 7 (July 2021) . - pp 485 - 490[article]Réservation
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Part 1 (Bulletin de Photogrammetric record) / Remote sensing and photogrammetry societyPermalinkPotential accuracy of image orientation of small satellites: a case study of CHRIS/Proba data / Ahmed Shaker in Photogrammetric record, vol 23 n° 123 (September - November 2008)PermalinkModeling the potential swath coverage of nadir and off-nadir pointable remote sensing satellite-sensor systems / S. Hodgson in Cartography and Geographic Information Science, vol 35 n° 3 (July 2008)PermalinkEffect of data density, scan angle, and flying height on the accuracy of building extraction using LiDAR data / Bharat Lohani in Geocarto international, vol 23 n° 2 (April - May 2008)PermalinkAssessment of the influence of flying altitude and scan angle on biophysical vegetation products derived from airborne laser scanning / F. Morsdorf in International Journal of Remote Sensing IJRS, vol 29 n° 5 (March 2008)PermalinkA method to test differences between additional parameter sets with a case study in terrestrial laser scanner self-calibration stability analysis / Derek D. Lichti in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 2 (March - April 2008)PermalinkTheory and reality of direct georeferencing in national coordinates / Jan Skaloud in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 2 (March - April 2008)PermalinkCoarse orientation of terrestrial laser scans in urban environments / Claus Brenner in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 1 (January - February 2008)PermalinkEuroSDR & ISPRS Workshop Geosensor Networks, February 20 - 22 2008, Hannover Germany / Christian Heipke (2008)PermalinkPermalinkInternational Calibration and Orientation Workshop, EuroCOW 2008, 30 janvier - 1er février 2008, Castelldefels, Espagne / Ismael Colomina (2008)PermalinkGeometric accuracy assessment of QuickBird basic imagery using different operational approaches / M. Aguilar in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 12 (December 2007)PermalinkRational function model for sensor orientation of IRS-P6 LISS-4 imagery / V. Nagasubramanian in Photogrammetric record, vol 22 n° 120 (December 2007 - February 2008)PermalinkComprehensive analysis of sensor modelling alternatives for high-resolution imaging satellites / A. Habib in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 11 (November 2007)PermalinkInvestigation of physical sensor models for modelling SPOT 3 orbits / T. Kim in Photogrammetric record, vol 22 n° 119 (September - November 2007)PermalinkAutomatic and precise orthorectification, coregistration, and subpixel correlation of satellite images: application to ground deformation measurements / S. Leprince in IEEE Transactions on geoscience and remote sensing, vol 45 n° 6 Tome 1 (June 2007)PermalinkRadiometric correction of hemispherical images / A. Kuusk in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 6 (February 2007)PermalinkPerformance analysis of integrated sensor orientation / A. Ip in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 1 (January 2007)Permalink3D physical versus empirical models for HR sensor orientation and elevation extraction: examples with Ikonos and Quickbird / Thierry Toutin in Revue Française de Photogrammétrie et de Télédétection, n° 184 (Décembre 2006)Permalink