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Mesures aéroportées et mesures terrestres : deux cas d 'emploi / Michel Kasser in Géomètre, n° 2036 (avril 2007)
[article]
Titre : Mesures aéroportées et mesures terrestres : deux cas d 'emploi Type de document : Article/Communication Auteurs : Michel Kasser , Auteur Année de publication : 2007 Article en page(s) : pp 35 - 35 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Topographie moderne
[Termes IGN] arbre (flore)
[Termes IGN] hauteur des arbres
[Termes IGN] lasergrammétrie
[Termes IGN] modélisation 3D
[Termes IGN] précision décimétrique
[Termes IGN] semis de points
[Termes IGN] télémétrie laser aéroporté
[Termes IGN] télémétrie laser terrestre
[Termes IGN] végétationRésumé : (Documentaliste) Cet article expose les spécificités des levés laser aériens et celles des levés laser terrestres. Un comparatif est également donné avec les méthodes de levés traditionnellement utilisées. Numéro de notice : A2007-105 Affiliation des auteurs : IGN (1940-2011) Thématique : FORET/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28470
in Géomètre > n° 2036 (avril 2007) . - pp 35 - 35[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 063-07041 RAB Revue Centre de documentation En réserve L003 Disponible LiDAR-derived high quality ground control information and DEM for image orthorectification / X. Liu in Geoinformatica, vol 11 n° 1 (March - May 2007)
[article]
Titre : LiDAR-derived high quality ground control information and DEM for image orthorectification Type de document : Article/Communication Auteurs : X. Liu, Auteur ; Z. Zhang, Auteur ; J. Peterson, Auteur ; S. Chandra, Auteur Année de publication : 2007 Article en page(s) : pp 37 - 53 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Orthophotographie, orthoimage
[Termes IGN] données lidar
[Termes IGN] ERDAS Imagine
[Termes IGN] géoréférencement
[Termes IGN] image numérisée
[Termes IGN] lasergrammétrie
[Termes IGN] modèle numérique de surface
[Termes IGN] orthoimage
[Termes IGN] orthoimage intégrale
[Termes IGN] orthorectification
[Termes IGN] point d'appui
[Termes IGN] Victoria (Australie)Résumé : (Auteur) Orthophotos (or orthoimages if in digital form) have long been recognised as a supplement or alternative to standard maps. The increasing applications of orthoimages require efforts to ensure the accuracy of produced orthoimages. As digital photogrammetry technology has reached a stage of relative maturity and stability, the availability of high quality ground control points (GCPs) and digital elevation models (DEMs) becomes the central issue for successfully implementing an image orthorectification project. Concerns with the impacts of the quality of GCPs and DEMs on the quality of orthoimages inspire researchers to look for more reliable approaches to acquire high quality GCPs and DEMs for orthorectification. Light Detection and Ranging (LiDAR), an emerging technology, offers capability of capturing high density three dimensional points and generating high accuracy DEMs in a fast and cost-effective way. Nowadays, highly developed computer technologies enable rapid processing of huge volumes of LiDAR data. This leads to a great potential to use LiDAR data to get high quality GCPs and DEMs to improve the accuracy of orthoimages. This paper presents methods for utilizing LiDAR intensity images to collect high accuracy ground coordinates of GCPs and for utilizing LiDAR data to generate a high quality DEM for digital photogrammetry and orthorectification processes. A comparative analysis is also presented to assess the performance of proposed methods. The results demonstrated the feasibility of using LiDAR intensity image-based GCPs and the LiDAR-derived DEM to produce high quality orthoimages. Copyright Springer Numéro de notice : A2007-165 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1007/s10707-006-0005-9 En ligne : https://doi.org/10.1007/s10707-006-0005-9 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28528
in Geoinformatica > vol 11 n° 1 (March - May 2007) . - pp 37 - 53[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-07011 RAB Revue Centre de documentation En réserve L003 Disponible A robust surface matching technique for integrated monitoring of coastal geohazards / P. Miller in Marine geodesy, vol 30 n° 1-2 (March - June 2007)
[article]
Titre : A robust surface matching technique for integrated monitoring of coastal geohazards Type de document : Article/Communication Auteurs : P. Miller, Auteur ; Jon Mills, Auteur ; S. Edwards, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 109 - 123 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] appariement de points
[Termes IGN] détection de changement
[Termes IGN] données lidar
[Termes IGN] fusion de données
[Termes IGN] lasergrammétrie
[Termes IGN] méthode robuste
[Termes IGN] patrimoine culturel
[Termes IGN] photographie aérienne
[Termes IGN] risque naturel
[Termes IGN] surveillance du littoral
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) At the dynamic coastal fringe, numerous processes interact with local morphology. In soft-cliff environments, this can often lead to the occurrence of coastal geohazards. These can pose a major threat to property and cultural heritage, and an effective monitoring strategy is therefore essential. While contemporary monitoring techniques have been applied, these are often unsuitable in isolation. This paper presents an integrated approach, with the development of weighted surface matching software enabling reliable dataset fusion and multi-temporal change detection, even where significant surface differences exist. Evaluation of this approach is presented and discussed. Copyright Taylor & Francis Numéro de notice : A2007-438 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/01490410701296598 En ligne : https://doi.org/10.1080/01490410701296598 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28801
in Marine geodesy > vol 30 n° 1-2 (March - June 2007) . - pp 109 - 123[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 230-07011 RAB Revue Centre de documentation En réserve L003 Disponible Fusion of imaging spectrometer and LIDAR data over combined radiative transfer models for forest canopy characterization / B. Koetz in Remote sensing of environment, vol 106 n° 4 (28/02/2007)
[article]
Titre : Fusion of imaging spectrometer and LIDAR data over combined radiative transfer models for forest canopy characterization Type de document : Article/Communication Auteurs : B. Koetz, Auteur ; G. Sun, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 449 - 459 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] canopée
[Termes IGN] données lidar
[Termes IGN] estimation statistique
[Termes IGN] forêt
[Termes IGN] fusion de données
[Termes IGN] hauteur des arbres
[Termes IGN] lasergrammétrie
[Termes IGN] Leaf Area Index
[Termes IGN] méthode robuste
[Termes IGN] modèle de transfert radiatif
[Termes IGN] modèle numérique de surface
[Termes IGN] spectrométrieRésumé : (Auteur) A comprehensive canopy characterization of forests is derived from the combined remote sensing signal of imaging spectrometry and large footprint LIDAR. The inversion of two linked physically based Radiative Transfer Models (RTM) provided the platform for synergistically exploiting the specific and independent information dimensions obtained by the two earth observation systems. Due to its measurement principle, LIght Detection And Ranging (LIDAR) is particularly suited to assess the horizontal and vertical canopy structure of forests, while the spectral measurements of imaging spectrometry are specifically rich on information for biophysical and -chemical canopy properties. In the presented approach, the specific information content inherent to the observations of the respective sensor was not only able to complement the canopy characterization, but also helped to solve the ill-posed problem of the RTM inversion. The theoretical feasibility of the proposed earth observation concept has been tested on a synthetic data set generated by a forest growth model for a wide range of forest stands. Robust estimates on forest canopy characteristics were achieved, ranging from maximal tree height, fractional cover (fcover), Leaf Area Index (LAI) to the foliage chlorophyll and water content. The introduction of prior information on the canopy structure derived from large footprint LIDAR observations significantly improved the retrieval performance relative to estimates based solely on spectral information. Copyright Elsevier Numéro de notice : A2007-069 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2006.09.013 En ligne : https://doi.org/10.1016/j.rse.2006.09.013 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28434
in Remote sensing of environment > vol 106 n° 4 (28/02/2007) . - pp 449 - 459[article]An integrated approach for modelling and global registration of point clouds / T. Rabbani in ISPRS Journal of photogrammetry and remote sensing, vol 61 n° 6 (February 2007)
[article]
Titre : An integrated approach for modelling and global registration of point clouds Type de document : Article/Communication Auteurs : T. Rabbani, Auteur ; S. Dijkam, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 355 - 370 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] base de connaissances
[Termes IGN] bâtiment industriel
[Termes IGN] données laser
[Termes IGN] jeu de données localisées
[Termes IGN] lasergrammétrie
[Termes IGN] matrice de covariance
[Termes IGN] méthode des moindres carrés
[Termes IGN] modélisation 3D
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] semis de points
[Termes IGN] superposition de données
[Termes IGN] transformation de coordonnéesRésumé : (Auteur) Point cloud acquisition by using laser scanners provides an efficient way for 3D as-built modelling of industrial installations. Covering such an installation with point cloud data often requires data acquisition from multiple standpoints. Before the actual modelling can start the transformation parameters of all scans need to be determined. Two methods to register point clouds of industrial scenes with different coordinate definitions are presented. Corresponding object models in different scans are used to determine the translation and rotation parameters of the scans. The first method, called Indirect method, is a two-step approach as object fitting and registration of the scenes is done separately. The second method, called Direct method simultaneously determines the shape and pose parameters of the objects as well as the registration parameters. Both methods are designed such that optimal use can be made of the knowledge of shapes present in industrial environments. Compared to ICP the presented approach combines registration and modelling and thus avoids the accumulation of errors. Furthermore, the simultaneous registration of multiple scans is possible. The presented approaches are based on non-linear least squares and provide quality measures in the form of covariance matrix of the estimated parameters, which can be used to decide if more scans are needed, and how and where they should be captured. Results are presented on some point cloud data-sets from actual industrial sites, where registration was done without using any artificial targets. Copyright ISPRS Numéro de notice : A2007-063 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.09.006 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.09.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28428
in ISPRS Journal of photogrammetry and remote sensing > vol 61 n° 6 (February 2007) . - pp 355 - 370[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-07021 SL Revue Centre de documentation Revues en salle Disponible Application of terrestrial laser scanning for risk mapping / Jose Luis Lerma Garcia (2007)PermalinkDigital terrain model on vegetated areas: joint use of airborne Lidar data and optical images / Frédéric Bretar (2007)PermalinkLIDAR : une technique prometteuse / Françoise de Blomac in SIG la lettre, n° 83 (janvier 2007)PermalinkMise en place d'une campagne d'acquisition laser et photogrammétrique au sein du projet Baetocaece / Marie Feisthauer (2007)PermalinkExamining the influence of changing laser pulse repetition frequencies on conifer forest canopy returns / Laura Chasmer in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 12 (December 2006)PermalinkAirborne Lidar bathymetry [bathymétrie aérienne par lidar] / D. Millar in GIM international, vol 20 n° 10 (October 2006)Permalink3D mapping on the move / S. Edwards in GEO: Geoconnexion international, vol 5 n° 8 (september 2006)PermalinkRegistration of terrestrial laser scanner data using imagery / K. Al-Manasir in Photogrammetric record, vol 21 n° 115 (September - November 2006)PermalinkLa lasergrammetrie appliquée à l'auscultation des ouvrages d'art / B. Chazaly in XYZ, n° 107 (juin - août 2006)PermalinkGaussian decomposition and calibration of a novel small-footprint full-waveform digitising airborne laser scanner / W. Wagner in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 2 (April 2006)Permalink