Centre de documentation
scientifique

GRAPHOS – open‐source software for photogrammetric applications / Diego Gonzalez-Aguilera in Photogrammetric record, vol 33 n° 161 (March 2018)  

Public [article]  inPhotogrammetric record > vol 33 n° 161 (March 2018) . - pp 11 - 29 Titre : GRAPHOS – open‐source software for photogrammetric applications Type de document : Article/Communication Auteurs : Diego Gonzalez-Aguilera, Auteur ; Luis Lopez-Fernandez, Auteur ; Pablo Rodriguez-Gonzalvez, Auteur ; David Hernandez-Lopez, Auteur ; et al., Auteur Année de publication : 2018 Article en page(s) : pp 11 - 29 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] code source libre [Termes IGN] interface graphique [Termes IGN] logiciel de photogrammétrie [Termes IGN] logiciel libre [Termes IGN] reconstruction 3D [Termes IGN] simulation Résumé : (Auteur) This paper reports the latest developments for the photogrammetric open‐source tool called GRAPHOS (inteGRAted PHOtogrammetric Suite). GRAPHOS includes some recent innovations in the image‐based 3D reconstruction pipeline, from automatic feature detection/description and network orientation to dense image matching and quality control. GRAPHOS also has a strong educational component beyond its automated processing functions, reinforced with tutorials and didactic explanations about algorithms and performance. The paper highlights recent developments carried out at different levels: graphical user interface (GUI), didactic simulators for image processing, photogrammetric processing with weight parameters, dataset creation and system evaluation. Numéro de notice : A2018-219 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/phor.12231 Date de publication en ligne : 21/02/2018 En ligne : https://doi.org/10.1111/phor.12231 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90039 [article]

Automated urban analysis based on LiDAR-derived building models / Diego Gonzalez-Aguilera in IEEE Transactions on geoscience and remote sensing, vol 51 n° 3 Tome 2 (March 2013)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 51 n° 3 Tome 2 (March 2013) . - pp 1844 - 1851 Titre : Automated urban analysis based on LiDAR-derived building models Type de document : Article/Communication Auteurs : Diego Gonzalez-Aguilera, Auteur ; Eugenia Crespo-Matellan, Auteur ; David Hernandez-Lopez, Auteur ; Pablo Rodriguez-Gonzalvez, Auteur Année de publication : 2013 Article en page(s) : pp 1844 - 1851 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] ArcGIS [Termes IGN] croissance urbaine [Termes IGN] données lidar [Termes IGN] modèle numérique du bâti [Termes IGN] planification urbaine [Termes IGN] Spatial Analyst Résumé : (Auteur) Building density information plays an essential role in the design, planning, and management of modern cities. This paper presents an automated approach to urban analysis using airborne laser scanner data to derive geometric information (heights, areas, and volumes) and urban density attributes (building coverage ratio and floor area ratio) of buildings, land lots, and urban units. In particular, four urban units are analyzed in the city of Avila, Spain, which has experienced considerable growth in recent years. The urban map and building density results are used to validate the utility of the automated method with respect to cadastral data and applicable regulations (Urban Land Law, 2008, and Urban Regulation General Plan, 2005). The algorithms for these operations are implemented in the Spatial Analyst ArcGIS extension module. Numéro de notice : A2013-137 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2205931 En ligne : https://doi.org/10.1109/TGRS.2012.2205931 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32275 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-2013031B	RAB	Revue	Centre de documentation	En réserve L003	Disponible

An automatic approach to UAV flight planning and control for photogrammetric applications: A test case in the Asturias region (Spain) / David Hernandez-Lopez in Photogrammetric Engineering & Remote Sensing, PERS, vol 79 n° 1 (January 2013)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 79 n° 1 (January 2013) . - pp 87 - 98 Titre : An automatic approach to UAV flight planning and control for photogrammetric applications: A test case in the Asturias region (Spain) Type de document : Article/Communication Auteurs : David Hernandez-Lopez, Auteur ; B. Felipe-Garcia, Auteur ; Diego Gonzalez-Aguilera, Auteur ; B. Arias-Perez, Auteur Année de publication : 2013 Article en page(s) : pp 87 - 98 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] Asturies [Termes IGN] contrôle automatique [Termes IGN] drone [Termes IGN] image aérienne [Termes IGN] modèle géométrique de prise de vue [Termes IGN] prise de vue aérienne Résumé : (Auteur) This paper deals with the implementation of an automatic and novel approach for UAV flight planning and control based on photogrammetric principles. Software which performs multiple tasks related to aerial photogrammetry and particularized to UAV systems was developed. Specifically, the flight planning and control framework incorporates a robust geometric control that guarantees the effectiveness, precision, and reliability of image acquisition. A real case study was generated to test and validate the flight planning and control strategies developed here. Numéro de notice : A2013-008 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.79.1.87 En ligne : https://doi.org/10.14358/PERS.79.1.87 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32146 [article]

An approach to the radiometric aerotriangulation of photogrammetric images / David Hernandez-Lopez in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 6 (November 2011)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 66 n° 6 (November 2011) . - pp 883 - 893 Titre : An approach to the radiometric aerotriangulation of photogrammetric images Type de document : Article/Communication Auteurs : David Hernandez-Lopez, Auteur ; B. Felipe-Garcia, Auteur ; J. Gonzalez Piqueras, Auteur ; G. Villa Alcazar, Auteur Année de publication : 2011 Article en page(s) : pp 883 - 893 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] correction radiométrique [Termes IGN] distribution du coefficient de réflexion bidirectionnelle BRDF [Termes IGN] image aérienne [Termes IGN] modèle de transfert radiatif [Termes IGN] orientation externe [Termes IGN] orthoimage [Termes IGN] points homologues [Termes IGN] qualité radiométrique (image) [Termes IGN] zone homogène Résumé : (Auteur) Harnessing the radiometric information provided by photogrammetric flights could be useful in increasing the thematic applications of aerial images. The aim of this paper is to improve relative and absolute homogenization in aerial images by applying atmospheric correction and treatment of bidirectional effects. We propose combining remote sensing methodologies based on radiative transfer models and photogrammetry models, taking into account the three-dimensional geometry of the images (external orientation and Digital Elevation Model). The photogrammetric flight was done with a Z/I Digital Mapping Camera (DMC) with a Ground Sample Distance (GSD) of 45 cm. Spectral field data were acquired by defining radiometric control points in order to apply atmospheric correction models, obtaining calibration parameters from the camera and surface reflectance images. Kernel-driven models were applied to correct the anisotropy caused by the bidirectional reflectance distribution function (BRDF) of surfaces viewed under large observation angles with constant illumination, using the overlapping area between images and the establishment of radiometric tie points. Two case studies were used: 8-bit images with applied Lookup Tables (LUTs) resulting from the conventional photogrammetric workflow for BRDF studies and original 12-bit images (Low Resolution Color, LRC) for the correction of atmospheric and bidirectional effects. The proposed methodology shows promising results in the different phases of the process. The geometric kernel that shows the best performance is the Lidense kernel. The homogenization factor in 8-bit images ranged from 6% to 25% relative to the range of digital numbers (0–255), and from 18% to 35% relative to levels of reflectance (0–100) in the 12-bit images, representing a relative improvement of approximately 1–30%, depending on the band analyzed. Numéro de notice : A2011-474 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2011.09.011 En ligne : https://doi.org/10.1016/j.isprsjprs.2011.09.011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31368 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-2011061	SL	Revue	Centre de documentation	Revues en salle	Disponible