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Termes IGN > sciences naturelles > physique > traitement d'image > qualité d'image > qualité géométrique (image) > précision géométrique (imagerie)
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3D building facade reconstruction under mesh form from multiple wide angle views / Lionel Pénard (2005)
Titre : 3D building facade reconstruction under mesh form from multiple wide angle views Type de document : Article/Communication Auteurs : Lionel Pénard , Auteur ; Nicolas Paparoditis , Auteur ; Marc Pierrot-Deseilligny , Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2005 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 36-5/W17 Conférence : 3D-ARCH 2005, ISPRS WG V-4 Workshop, Virtual reconstruction and visualisation of complex architecture 22/08/2005 24/08/2005 Venise Italie OA Proceedings Importance : 7 p. Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] appariement d'images
[Termes IGN] filtre de déchatoiement
[Termes IGN] maillage par triangles
[Termes IGN] objectif grand angulaire
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] semis de points
[Termes IGN] texture d'image
[Termes IGN] traitement d'imageRésumé : (Auteur) In this paper, we present an algorithm, which automatically generates textured meshes of building facades from a set of multi over-lapping calibrated and oriented images. We are in a context of massive data production and aim at high geometric accuracy. The central idea is to create a 3D point cloud. After comparison between object-space and image-space techniques, we choose the latter and compute the depths of the pixels in each image using a correlation-based method. A post-processing step is necessary to filter points according to a confidence index and remove the sparse speckle noise. We then perform a global optimization to find a regularized surface. Finally, the 3D point cloud is triangulated. The resulting mesh is an accurate representation of the façade surface from each image view point. We obtain promising results, with a correct texture projection on the reconstructed model. Numéro de notice : C2005-011 Affiliation des auteurs : MATIS (1993-2011) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : http://www.isprs.org/proceedings/XXXVI/5-W17/pdf/17.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64397 Documents numériques
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3D building facade reconstruction under mesh formAdobe Acrobat PDF Automated quality control for orthoimages and DEMs / J.K. Höhle in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 1 (January 2005)
[article]
Titre : Automated quality control for orthoimages and DEMs Type de document : Article/Communication Auteurs : J.K. Höhle, Auteur ; Markéta Potůčková, Auteur Année de publication : 2005 Article en page(s) : pp 81 - 87 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] appariement d'images
[Termes IGN] contrôle qualité automatique
[Termes IGN] corrélation automatique de points homologues
[Termes IGN] modèle numérique de surface
[Termes IGN] orthoimage
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] seuillage d'imageRésumé : (Auteur) The checking of the geometric accuracy of orthoimages and digital elevation models (DEMs) is discussed. As a reference, an existing orthoimage and a second orthoimage derived from an overlapping aerial image, are used. The proposed automated procedures for checking the orthoimages and DEMs are based on matching of corresponding image patches. Existing topographic databases are additionally used in order to select time-invariant objects as checkpoints. In order to avoid blunders in the correlation, thresholds for similarity measures are applied. Detailed studies show that a combination of thresholds for the maximum correlation coefficient, the average mutual information, and distance can reduce the number of blunders in the automated measurements considerably and should therefore be applied. The calculation of DEM errors is carried out by an improved-formula. The new methods and procedures are applied to two practical examples, and the results are presented. Numéro de notice : A2005-012 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.71.1.81 En ligne : https://doi.org/10.14358/PERS.71.1.81 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27151
in Photogrammetric Engineering & Remote Sensing, PERS > vol 71 n° 1 (January 2005) . - pp 81 - 87[article]Evaluation of 3D city model production from Pleaides-HR satellite images and 3D ground maps / David Flamanc (2005)
Titre : Evaluation of 3D city model production from Pleaides-HR satellite images and 3D ground maps Type de document : Article/Communication Auteurs : David Flamanc , Auteur ; Grégoire Maillet , Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2005 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 36-8/W27 Conférence : ISPRS 2005, WG VIII/1, Joint Symposia URBAN - URS 14/03/2005 16/03/2005 Tempe Arizona - Etats-Unis OA ISPRS Archives Importance : 5 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] carte topographique
[Termes IGN] image optique
[Termes IGN] image Pléiades-HR
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] zone urbaine denseRésumé : (auteur) During the past decades 3D building extraction has been a constant topic of research for several universities and cartographic or photogrammetric institutes because there was a great demand for 3D city models in commercial applications. These applications move from electromagnetic propagation for telecommunication to more demanding simulations for acoustic, urban planning, virtual and augmented reality. In most cases, 3D complete roof shapes are required. Year after year radiometric quality and geometric accuracy of new high resolution satellites keep on improving so much so satellite imagery become a real potential solution for the production of such 3D models. This present paper studies the potential of the CNES (French Spatial Agency) Pleiades-HR system, ready to launch in 2007, for the 3D city models production in the case of 2D ground maps availability. First because this Pleiades-HR system, able to acquire tristereoscopic high-resolution panchromatic images, seems well adapted for 3D applications. Secondly because 2D ground maps are now available in many countries, especially in dense urban areas, and are very useful for the automation of the reconstruction process. For the present evaluation very fine image simulations provided by the CNES are used, in addition to 2D ground plans that come from the French cadastral database. The 3D models have been produced with an operational framework able to reconstruct buildings from optical images and 2D ground plans. A 3D reference has been acquired from aerial images with a resolution of 25cm. This reference allows to evaluate from qualitative and quantitative points of view the 3D reconstruction. Finally, the quality of 3D city models produced from the Pleiades-HR images will be discussed in terms of levels of details, geometric accuracy, exhaustiveness and productivity. Numéro de notice : C2005-038 Affiliation des auteurs : MATIS (1993-2011) Thématique : IMAGERIE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/8-W27/flamanc.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100077 Four years of Landsat-7 on orbit geometric calibration and performance / D. Scott Lee in IEEE Transactions on geoscience and remote sensing, vol 42 n° 12 (December 2004)
[article]
Titre : Four years of Landsat-7 on orbit geometric calibration and performance Type de document : Article/Communication Auteurs : D. Scott Lee, Auteur ; J.C. Storey, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 2786 - 2795 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] élément d'orientation interne
[Termes IGN] étalonnage géométrique
[Termes IGN] étalonnage radiométrique
[Termes IGN] Landsat
[Termes IGN] précision géométrique (imagerie)Résumé : (Auteur) Unlike its predecessors, Landsat-7 has undergone regular geometric and radiometric performance monitoring and calibration since launch in April 1999. This ongoing activity, which includes issuing quarterly updates to calibration parameters, has generated a wealth of geometric performance data over the four-year on-orbit period of operations. A suite of geometric characterization (measurement and evaluation procedures) and calibration (procedures to derive improved estimates of instrument parameters) methods are employed by the Landsat-7 Image Assessment System to maintain the geometric calibration and to track specific aspects of geometric performance. These include geodetic accuracy, band-to-band registration accuracy, and image-to-image registration accuracy. These characterization and calibration activities maintain image product geometric accuracy at a high level-by monitoring performance to determine when calibration is necessary, generating new calibration parameters, and verifying that new parameters achieve desired improvements in accuracy. Landsat-7 continues to meet and exceed all geometric accuracy requirements, although aging components have begun to affect performance. Numéro de notice : A2004-536 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.836769 En ligne : https://doi.org/10.1109/TGRS.2004.836769 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27053
in IEEE Transactions on geoscience and remote sensing > vol 42 n° 12 (December 2004) . - pp 2786 - 2795[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-04121 RAB Revue Centre de documentation En réserve L003 Disponible Filtering airborne Laser scanner data: a wavelet-based clustering method / T. Thuy in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 11 (November 2004)
[article]
Titre : Filtering airborne Laser scanner data: a wavelet-based clustering method Type de document : Article/Communication Auteurs : T. Thuy, Auteur ; M. Tokunaga, Auteur Année de publication : 2004 Article en page(s) : pp 1267 - 1274 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] analyse de groupement
[Termes IGN] analyse multirésolution
[Termes IGN] données laser
[Termes IGN] erreur moyenne quadratique
[Termes IGN] filtrage numérique d'image
[Termes IGN] modèle de dispersion
[Termes IGN] modèle numérique de terrain
[Termes IGN] pente
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] Stuttgart
[Termes IGN] télémétrie laser aéroporté
[Termes IGN] Tokyo (Japon)
[Termes IGN] transformation en ondelettesRésumé : (Auteur) Filtering the airborne laser scanner data is challenging due to the complex distribution of objects on Earth's surface and it is still in development stage. This problem has been investigated so far with varieties of algorithms, but they suffer from different magnitudes of drawbacks. This study proposed a new and improved hybrid method based on multi-resolution analysis. Wavelet was adopted in this multi-resolution clustering approach. It enabled the classification of objects based on their size and the efficiency to filter out unwanted information at a specific resolution, and the proposed algorithm is named the ALSwave (Airborne Laser Scanner Wavelet) method. ALSwave has been tested on two data sets acquired over the urban areas of Tokyo, Japan and Stuttgart, Germany. The results showed a well-filtered, bare earth surface coupled with acceptable computational time. The accuracy assessment was carried out by comparison between the filtered bare earth surface by ALSwave and the manually filtered surface. The Root Mean Square Error (RMSE) follows a linear relationship with respect to terrain slope. This wavelet-based approach has opened a new way to filter the raw laser data that subsequently generates fast and more accurate digital terrain models. Numéro de notice : A2004-457 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.70.11.1267 En ligne : https://doi.org/10.14358/PERS.70.11.1267 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26977
in Photogrammetric Engineering & Remote Sensing, PERS > vol 70 n° 11 (November 2004) . - pp 1267 - 1274[article]Accuracy analysis, DEM generation and validation using russian TK-350 stereo-images / G. Buyuksalih in Photogrammetric record, vol 19 n° 107 (September - November 2004)PermalinkAccuracy of the coefficient expansion of the transverse Mercator projection / E. Enriquez in International journal of geographical information science IJGIS, vol 18 n° 6 (october 2004)PermalinkPrecision of points computed from intersections of lines or planes / P. Cederholm in Surveying and land information science, vol 64 n° 3 (01/09/2004)PermalinkAccuracy assessment of Quickbird stereo imagery / M. Noguchi in Photogrammetric record, vol 19 n° 106 (June - August 2004)PermalinkLe contrôle des instruments géodésiques / Rudolf Staiger in XYZ, n° 99 (juin - août 2004)PermalinkInfluence passée, présente et à venir de la technologie en topographie / D. Wallace in XYZ, n° 99 (juin - août 2004)PermalinkGeometric correction accuracy of IRS-1D PAN imagery using topographic map versus GPS control points / M. Turker in International Journal of Remote Sensing IJRS, vol 25 n° 6 (March 2004)PermalinkAccuracy of airborne lidar derived elevation: empirical assessment and error budget / M.E. Hodgson in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 3 (March 2004)PermalinkCreation of DTM with ASTER data and statistical verification of the accuracy of the model (western Peloponnese, Greece) / N. Konstantinos in Geocarto international, vol 19 n° 1 (March - May 2004)PermalinkComparison of aerial images, satellites images and laser scanning DSM in a 3D city models production framework / Grégoire Maillet (2004)Permalink