Descripteur
Termes IGN > géomatique > données localisées > données localisées numériques > données laser
données laserSynonyme(s)levé par laserVoir aussi |
Documents disponibles dans cette catégorie (1226)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Forum PPMD [2011] / Anonyme in Géomatique expert, n° 79 (01/03/2011)
[article]
Titre : Forum PPMD [2011] Type de document : Article/Communication Auteurs : Anonyme, Auteur Année de publication : 2011 Article en page(s) : pp 28 - 31 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] acquisition d'images
[Termes IGN] données lidar
[Termes IGN] drone
[Termes IGN] modélisation 3D
[Termes IGN] positionnement par GPS
[Termes IGN] précision centimétrique
[Termes IGN] récepteur GPS
[Termes IGN] semis de points
[Termes IGN] télémètre laser
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) Bref compte-rendu du forum annuel organisé par les élèves du master PPMD (photogrammétrie, positionnement et mesure des déformations) de l'ENSG. Thème de l'édition 2011 : "vers de nouvelles techniques d'acquisition". Numéro de notice : A2011-122 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30902
in Géomatique expert > n° 79 (01/03/2011) . - pp 28 - 31[article]Réservation
Réserver ce documentExemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 265-2011021 RAB Revue Centre de documentation En réserve L003 Disponible IFN-001-P001267 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Full waveform-based analysis for forest type information derivation from large footprint spaceborne lidar data / Junjie Zhang in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 3 (March 2011)
[article]
Titre : Full waveform-based analysis for forest type information derivation from large footprint spaceborne lidar data Type de document : Article/Communication Auteurs : Junjie Zhang, Auteur ; A. De Gier, Auteur ; Y. Xing, Auteur ; Gunho Sohn, Auteur Année de publication : 2011 Conférence : SilviLaser 2010, 10th International Conference on LiDAR Applications for Assessing Forest Ecosystems 14/09/2010 17/09/2010 Fribourg Allemagne Article en page(s) : pp 281 - 290 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] canopée
[Termes IGN] capteur spatial
[Termes IGN] classification par séparateurs à vaste marge
[Termes IGN] couvert forestier
[Termes IGN] décomposition de Gauss
[Termes IGN] données lidar
[Termes IGN] feuillu
[Termes IGN] lidar à retour d'onde complète
[Termes IGN] Pinophyta
[Termes IGN] signal laserRésumé : (Auteur) This study developed a new method to derive forest type information from large-footprint lidar data based on full waveform analysis. For this purpose, the raw waveform was decomposed into Gaussian components, and canopy return and ground return of the waveforms were separated. Two types of metrics hypothesized to have relationship with forest types were derived from the canopy return part of the waveform. The first type of metrics is quantile-based metrics reflecting the vertical distribution of canopy return energy, and the second type is statistical characteristics of the Gaussian components of canopy return part. Support Vector Machine classification was applied to different combinations of the metrics to find their relationship with different forest types. The results showed that the second type of metrics, indicating the canopy stratum characteristics, showed great promise in separating broad-leaved and needle-leaved forests with the accuracy ranging from 88.68 percent to 90.57 percent and Kappa statistic from 0.7406 to 0.7868. Numéro de notice : A2011-081 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.14358/PERS.77.3.281 En ligne : https://doi.org/10.14358/PERS.77.3.281 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30862
in Photogrammetric Engineering & Remote Sensing, PERS > vol 77 n° 3 (March 2011) . - pp 281 - 290[article]Incremental segmentation of lidar point clouds with an octree-structured voxel space / M. Wang in Photogrammetric record, vol 26 n° 133 (March - May 2011)
[article]
Titre : Incremental segmentation of lidar point clouds with an octree-structured voxel space Type de document : Article/Communication Auteurs : M. Wang, Auteur ; Yi-Hsing Tseng, Auteur Année de publication : 2011 Article en page(s) : pp 32 - 57 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] coplanarité
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] octree
[Termes IGN] reconstruction d'objet
[Termes IGN] segmentation
[Termes IGN] semis de points
[Termes IGN] voxelRésumé : (Auteur) Lidar (light detection and ranging) data implicitly contains abundant three-dimensional spatial information. The segmentation of lidar point clouds is the key procedure for transforming implicit spatial information into explicit spatial information. Common criteria used for point cloud segmentation are proximity and coherence of point distribution. An effective segmentation algorithm may apply various steps or combinations of criteria depending on the application. This paper proposes a four-step segmentation method for lidar point clouds to deliver incremental segmentation results. Segmentation results of each step can provide the fundamental data for the next step. In the first step, the input point cloud is organised into an octree-structured voxel space, in which the point neighbourhood is established. In the second step, connected voxels which are not empty are grouped to obtain grouped points based on proximity. The third step is a coplanar point segmentation based on both coherence and proximity, which was performed on each point group obtained in the second step. Finally, neighbouring coplanar point groups are merged into “co-surface” point groups based on the criteria of plane connection and intersection. This scheme enables an incremental retrieval and analysis of a large lidar data-set. Experimental results demonstrate the effectiveness of the segmentation algorithm in handling both airborne and terrestrial lidar data. It is anticipated that the incremental segmentation results will be useful for object modelling using lidar data. Numéro de notice : A2011-077 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2011.00624.x Date de publication en ligne : 16/03/2011 En ligne : https://doi.org/10.1111/j.1477-9730.2011.00624.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30858
in Photogrammetric record > vol 26 n° 133 (March - May 2011) . - pp 32 - 57[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-2011011 RAB Revue Centre de documentation En réserve L003 Disponible Indirect georeferencing of digital SLR [single-lens reflex] imagery using signalised lidar control points / Edson Aparecido Mitishita in Photogrammetric record, vol 26 n° 133 (March - May 2011)
[article]
Titre : Indirect georeferencing of digital SLR [single-lens reflex] imagery using signalised lidar control points Type de document : Article/Communication Auteurs : Edson Aparecido Mitishita, Auteur ; J. Cortes, Auteur ; J. Centeno, Auteur Année de publication : 2011 Article en page(s) : pp 58 - 72 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] analyse comparative
[Termes IGN] compensation par faisceaux
[Termes IGN] données lidar
[Termes IGN] géoréférencement indirect
[Termes IGN] image numérique
[Termes IGN] point d'appui
[Termes IGN] positionnement par GPSRésumé : (Auteur) Photogrammetric and lidar data-sets have been used together in mapping procedures because of their complementary characteristics. However, to perform this integration both data-sets must be within a common reference frame. Although all lidar systems include a direct georeferencing procedure, the majority of low-cost photogrammetric systems do not have a facility for direct georeferencing of images even if the data-sets are captured simultaneously. In recent years, the high accuracy of the lidar data has enabled it to provide a source of photogrammetric control and thus to offer indirect georeferencing. This paper presents a methodology for the indirect georeferencing of digital SLR images using signalised lidar control points, together with the results obtained. The intensity image and raw lidar data-set were used to extract 3D coordinates of signalised control points. Two bundle adjustments of 21 images were performed. In the first case the coordinates of the control points were obtained by using GPS survey. In the second, they were extracted from a lidar data-set. The results obtained from these experiments confirm the feasibility of the proposed methodology Numéro de notice : A2011-078 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2011.00621.x Date de publication en ligne : 16/03/2011 En ligne : https://doi.org/10.1111/j.1477-9730.2011.00621.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30859
in Photogrammetric record > vol 26 n° 133 (March - May 2011) . - pp 58 - 72[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-2011011 RAB Revue Centre de documentation En réserve L003 Disponible Quality analysis on 3D building models reconstructed from airborne laser scanning data / Sander J. Elberink in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)
[article]
Titre : Quality analysis on 3D building models reconstructed from airborne laser scanning data Type de document : Article/Communication Auteurs : Sander J. Elberink, Auteur ; M. George Vosselman, Auteur Année de publication : 2011 Article en page(s) : pp 157 - 165 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] données laser
[Termes IGN] hauteur du bâti
[Termes IGN] mesure de la qualité
[Termes IGN] modélisation 3D
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] qualité des données
[Termes IGN] reconstruction 3D du bâtiRésumé : (Auteur) This paper presents a method to assess the geometric quality of 3D building models. The quality depends on properties of the input data and the processing steps. Insight in the quality of 3D models is important for users to judge whether the models can be used in their specific applications. Without a proper quality description it is likely that the building models are either treated as correct or considered as useless because the quality is unknown. In our research we analyse how the quality parameters of the input data affect the quality of the 3D models. The 3D models have been reconstructed from dense airborne laser scanner data of about 20 pts/m2. A target based graph matching approach has been used to relate specific data features to general building knowledge. The paper presents a theoretical and an empirical approach to identify strong parts and shortcomings in 3D building models reconstructed from airborne laser scanning data without the use of reference measurements. Our method is tested on three different scenes to show that a proper quality description is essential to correctly judge the quality of the models. Numéro de notice : A2011-070 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2010.09.009 En ligne : https://doi.org/10.1016/j.isprsjprs.2010.09.009 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30851
in ISPRS Journal of photogrammetry and remote sensing > vol 66 n° 2 (March - April 2011) . - pp 157 - 165[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-2011021 SL Revue Centre de documentation Revues en salle Disponible vol 77 n° 3 - March 2011 - Silvilaser, Lidar remote sensing for characterizing forest vegetation (Bulletin de Photogrammetric Engineering & Remote Sensing, PERS) / American society for photogrammetry and remote sensingPermalinkTiltan's automated geo-mapping (AGM) system: A highly integrated airborne image data acquisition & processing system / Gordon Petrie in Geoinformatics, vol 14 n° 2 (01/03/2011)Permalink3D building model reconstruction from multi-view aerial imagery and Lidar data / Liang Cheng in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 2 (February 2011)PermalinkSwedish Lidar Project: New Nationwide Elevation Model / Y. Petersen in GIM international, vol 25 n° 2 (February 2011)PermalinkPermalinkConditional random fields for urban scene : Classification with full waveform LiDAR Data / Joachim Niemeyer (2011)PermalinkContributions to the 3D city modeling. 3D polyhedral building model reconstruction from aerial images & 3D facade modeling from terrestrial 3D point cloud and images / Karim Hammoudi (2011)PermalinkDelineation of impervious surface from multispectral imagery and lidar incorporating knowledge based expert system rules / K. Germaine in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 1 (January 2011)PermalinkGenerating virtual 3D model of urban street facades by fusing terrestrial multi-source data / Karim Hammoudi (2011)PermalinkGrotte de Marsoulas : la renaissance en 3D / M. Mayo in Géomètre, n° 2077 (janvier 2011)PermalinkL'IGN fête ses 70 ans / Anonyme in Géomatique expert, n° 78 (01/01/2011)PermalinkLe laser et ses applications / Pascal Besnard (2011)PermalinkLiDAR surveys in the upper Rhine Valley: New insights for archeological and landscape applications / F. Basoge in Revue Française de Photogrammétrie et de Télédétection, n° 193 (Janvier 2011)PermalinkManuel d'archéologie / François Djindjian (2011)PermalinkRecalage d'un nuage de points de scanner laser terrestre avec une image de bâtiment / Abdelhamid Bennis (2011)PermalinkRelevance of airborne lidar and multispectral image data for urban scene classification using random forests / Li Guo in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 1 (January - February 2011)PermalinkStochastic Geometry for Image Analysis, ch 9. Some applications to image processing: pattern recognition / shape recognition / Florent Lafarge (2011)PermalinkLes techniques de positionnement au service des paléontologues, les travaux de l'ENSG sur la Caune de l'Arago / Laure Chandelier in Revue Française de Photogrammétrie et de Télédétection, n° 193 (Janvier 2011)Permalinkn° 193 - Janvier 2011 - Télédétection et archéologie (Bulletin de Revue Française de Photogrammétrie et de Télédétection) / Société française de photogrammétrie et de télédétectionPermalinkPermalink