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Image Analysis and Recognition, International Conference, ICIAR 2004, Porto, Portugal, September-October 2004, Part 1. Proceedings / Aurélio Campilho (2004)
Titre de série : Image Analysis and Recognition, International Conference, ICIAR 2004, Porto, Portugal, September-October 2004, Part 1 Titre : Proceedings Type de document : Actes de congrès Auteurs : Aurélio Campilho, Éditeur scientifique ; Mohamed Kamel, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2004 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 3211 Conférence : ICIAR 2004, First International Conference on Image analysis and Recognition 29/09/2004 01/10/2004 Porto Portugal Proceedings Springer Importance : 880 p. Format : 15 x 24 cm ISBN/ISSN/EAN : 978-3-540-23223-0 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse d'image numérique
[Termes IGN] appariement de graphes
[Termes IGN] classification
[Termes IGN] graphe
[Termes IGN] image 3D
[Termes IGN] image vidéo
[Termes IGN] indexation
[Termes IGN] morphologie mathématique
[Termes IGN] reconnaissance d'objets
[Termes IGN] segmentation d'image
[Termes IGN] séquence d'imagesNuméro de notice : 19836A Affiliation des auteurs : non IGN Thématique : IMAGERIE/INFORMATIQUE Nature : Actes DOI : 10.1007/b100437 En ligne : http://dx.doi.org/10.1007/b100437 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85939 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19836-01A CG2004 Livre Centre de documentation Congrès Disponible A neural adaptive model for feature extraction and recognition in high resolution remote sensing imagery / E. Binaghi in International Journal of Remote Sensing IJRS, vol 24 n° 20 (October 2003)
[article]
Titre : A neural adaptive model for feature extraction and recognition in high resolution remote sensing imagery Type de document : Article/Communication Auteurs : E. Binaghi, Auteur ; I. Gallo, Auteur ; M. Pepe, Auteur Année de publication : 2003 Article en page(s) : pp 3947 - 3959 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] appariement de formes
[Termes IGN] classification dirigée
[Termes IGN] classification par réseau neuronal
[Termes IGN] extraction automatique
[Termes IGN] extraction de traits caractéristiques
[Termes IGN] filtrage numérique d'image
[Termes IGN] image à haute résolution
[Termes IGN] Perceptron multicouche
[Termes IGN] reconnaissance de formes
[Termes IGN] système expert
[Termes IGN] variation d'échelleRésumé : (Auteur) Contextual classification methods, which require the extraction of complex spatial information over a range of scales, from fine details in local areas to large features that extend across the image, are necessary in many remote sensing image classification studies. This work presents a supervised adaptive object recognition model which integrates scale-space filtering techniques for feature extraction within a Multilayer Perceptron neural network and the back-propagation learning task of the search of the most adequate filter parameters. The experimental evaluation of the method has been conducted in an easily controlled domain using synthetic imagery, and in the real domain coping with object recognition in high-resolution remote sensing imagery. To investigate whether the strategy can be considered an alternative to conventional procedures the results were compared with those obtained by a well known contextual classification scheme. Numéro de notice : A2003-285 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/0143116031000103808 En ligne : https://doi.org/10.1080/0143116031000103808 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22580
in International Journal of Remote Sensing IJRS > vol 24 n° 20 (October 2003) . - pp 3947 - 3959[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-03201 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Synergetic fusion of GPS and photogrammetrically generated elevation models / Jon P. Mills in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 4 (April 2003)
[article]
Titre : Synergetic fusion of GPS and photogrammetrically generated elevation models Type de document : Article/Communication Auteurs : Jon P. Mills, Auteur ; S.J. Buckley, Auteur ; H.L. Mitchell, Auteur Année de publication : 2003 Article en page(s) : pp 341 - 349 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] appariement géométrique
[Termes IGN] coût
[Termes IGN] données GPS
[Termes IGN] erreur systématique
[Termes IGN] fusion de données
[Termes IGN] GPS en mode cinématique
[Termes IGN] image numérique
[Termes IGN] méthode des moindres carrés
[Termes IGN] modèle numérique de surface
[Termes IGN] orientation relative
[Termes IGN] photographie aérienne
[Termes IGN] point d'appui
[Termes IGN] restitutionRésumé : (Auteur) Digital elevation models (DEMs) produced from photogrammetric data sources have long relied on the use of ground control points to give them scale and orientation. However, in areas such as coastlines, landslides, or glaciers, where identification of suitable natural features and premarking is difficult, the use of conventional ground control may be unfeasible. This paper reports on research that uses independently collected DEMs derived from kinematic GPS to orient surfaces produced by aerial photogrammetric methods, using a leastsquares surface matching algorithm. During algorithm development, three stages of testing were carried out, Using increasingly more complex datasets. Initially, simulated surfaces were used to validate the matching theory and program. Then, a DEM derived from conventional aerial photography was matched with a GPS model, highlighting the effectiveness of surface matching to recover systematic errors in datosets. Finally, surfaces derived from small format digital imagery were successfully fused with wireframe GPS surfaces, the high redundancy and automation potential creating an elegant and cheaper alternative to photocontrol. Numéro de notice : A2003-109 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.4.341 En ligne : https://doi.org/10.14358/PERS.69.4.341 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22405
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 4 (April 2003) . - pp 341 - 349[article]Roof boundary extraction using multiple images / Ahmed F. Elaksher in Photogrammetric record, vol 18 n° 101 (March - May 2003)
[article]
Titre : Roof boundary extraction using multiple images Type de document : Article/Communication Auteurs : Ahmed F. Elaksher, Auteur ; J.S. Bethel, Auteur ; E. Mikhail, Auteur Année de publication : 2003 Article en page(s) : pp 27 - 40 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] appariement géométrique
[Termes IGN] classification dirigée
[Termes IGN] cohérence géométrique
[Termes IGN] contour
[Termes IGN] courbe épipolaire
[Termes IGN] détection de contours
[Termes IGN] exhaustivité des données
[Termes IGN] image aérienne
[Termes IGN] méthode robuste
[Termes IGN] milieu urbain
[Termes IGN] photo-interprétation assistée par ordinateur
[Termes IGN] polygone
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] segmentation d'imageRésumé : (Auteur) Urban area building extraction is one of the most challenging problems in photogrammetry. Wellextracted buildings are needed for a variety of applications, such as cartography, building GIS databases for cities, and urban planning. This paper presents a new technique to extract 3D building wireframes using a robust multiimage linematching algorithm. Although one pair of images is adequate to find the 3D position of two visibly corresponding image, features, it is not sufficient to solve the general building extraction problem due to obscured parts in the building. Four images are used in this research to extract the building wireframes. First the images are segmented into regions. Regions are then classified into roof regions and nonroof regions based on their size, shape, and intensity values. The roof region boundary pixels are located and used to find the region perimeters. Region correspondence is solved in a pairwise mode over all images using the epipolar constraint, region size, region shape, and region intensity values. Image lines within the corresponding regions are matched over all images simultaneously by first creating a plane for each region line. Planes are then intersected simultaneously and geometric consistency is used to determine acceptance or rejection. Results with high overlap and sidelap aerial images are presented and evaluated. The results show the completeness and accuracy that this method can provide for extracting complex urban buildings. The average coordinate accuracy is about 08 m using 1:4000 scale aerial photographs scanned at 30 um Six buildings were examined; the line detection rate is 98%. Numéro de notice : A2003-091 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/0031-868X.t01-1-00003 En ligne : https://doi.org/10.1111/0031-868X.t01-1-00003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22387
in Photogrammetric record > vol 18 n° 101 (March - May 2003) . - pp 27 - 40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-03011 RAB Revue Centre de documentation En réserve L003 Disponible Automatic matching and three-dimensional reconstruction of free-form linear features from stereo images / A.F. Habib in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 2 (February /2003)
[article]
Titre : Automatic matching and three-dimensional reconstruction of free-form linear features from stereo images Type de document : Article/Communication Auteurs : A.F. Habib, Auteur ; Y.R. Lee, Auteur ; M. Morgan, Auteur Année de publication : 2003 Article en page(s) : pp 189 - 197 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie spatiale
[Termes IGN] appariement de formes
[Termes IGN] contour
[Termes IGN] couple stéréoscopique
[Termes IGN] courbe épipolaire
[Termes IGN] géométrie épipolaire
[Termes IGN] milieu urbain
[Termes IGN] objet géographique linéaire
[Termes IGN] photographie à grande échelle
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] transformation de HoughRésumé : (Auteur) Automatic matching of freeform linear features in overlapping largescale imagery over urban areas still remains to be a problem in both the photogrammetric and computer vision communities. Although there is a variety of algorithms that have been developed to solve this problem, reliable results are not always guaranteed. Differences in illumination conditions, relief displacement, and occlusions are some of the factors that make solving the matching problem more challenging. The deficiency of available techniques stems from the fact that they do not consider the perspective geometry of the imaging system in the matching process. Moreover, it is usually assumed that conjugate entities are almost exact copies of each other (this is rarely the case). The need for a reliable algorithm that can handle largescale imagery over urban areas is growing, especially with the increasing availability of high resolution aerial imagery. In this research, a new approach for automatic matching and threedimensional reconstruction of freeform linear features from stereo images is proposed. The suggested strategy is based on The Modified Iterated Hough Transform (MIHT) for Robust Parameter Estimation, MIHT relies on the mathematical relationship between conjugate entities (the coplanarity condition when dealing with a stereo pair). As a result, it overcomes problems arising from relief displacements and/or occlusions. Moreover, MIHT simultaneously solves for the relative orientation parameters as well as the correspondence between conjugate entities in a stereo pair. Matching ambiguities along and across conjugate epipolar lines are observed in the correspondence output from MIHT. Ambiguities along the epipolar lines stem from the nature of the coplanarity model, which establishes the correspondence between conjugate epipolar lines rather than conjugate points. On the other hand, ambiguities across the epipolar lines are expected due to the discrete cell size of the implemented accumulator array in MIHT. In this work, the ambiguities are resolved through several pruning techniques such as correlation coefficient, edge connectivity, height information, and epipolar geometry. Conjugate entities with subpixel accuracy are finally used to reconstruct accurate and reliable threedimensional imagespace discontinuities. Various experiments using largescale imagery over urban areas proved the reliability and robustness of the proposed method. Numéro de notice : A2003-014 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.2.189 En ligne : https://doi.org/10.14358/PERS.69.2.189 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22312
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 2 (February /2003) . - pp 189 - 197[article]Automatisation de l'orientation intérieure / B. Fredericque (2003)PermalinkExtracting 3D free-form surface boundaries of man-made objects from multiple calibrated images : a robust, accurate and high resolving power edgel matching and chaining approach / Franck Jung (2003)PermalinkMise en place d'un lien dynamique Access-MapInfo / J. Tusek (2003)PermalinkAutomatic surface reconstruction based on the fusion of fuzzy logic and robust estimation techniques / F. Samadzadegan in Photogrammetric record, vol 17 n° 100 (October 2002 - March 2003)PermalinkL'appariement pour la constitution de bases de données géographiques multirésolutions. Vers une interprétation des différences de représentation / David Sheeren in Revue internationale de géomatique, vol 12 n° 2 (juin - août 2002)PermalinkTowards automating the selection of ground control points in Radarsat images using a topographic database and vector-based matching / Isabelle Couloigner in Photogrammetric Engineering & Remote Sensing, PERS, vol 68 n° 5 (Mai 2002)PermalinkCorrespondances entre représentations / Serge Motet in Revue internationale de géomatique, vol 12 n° 1 (mars - mai 2002)PermalinkL'appariement pour la constitution de bases de données géographiques multi-résolutions / David Sheeren (2002)PermalinkComparaison des éléments linéaires de deux bases de données géographiques, version 1.2 / Patrick Marmonier (2002)PermalinkDéveloppement d'une approche figurale pour la radargrammétrie haute résolution en zone urbaine / Florence Tupin in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 166 (Janvier 2002)PermalinkEtude et développement d'un outil d'extraction et d'appariement des éléments caractéristiques du relief à partir de modèles numériques de terrain / E. Colleu (2002)PermalinkGénéralisation et représentation multiple / Anne Ruas (2002)PermalinkGénéralisation et représentation multiple, ch. 9. Associer des données : l'appariement / Cécile Lemarié (2002)PermalinkInventaire des types de données de référence / IGN conseil (2002)PermalinkA new merging process for data integration based on the Discrete Fréchet Distance / Thomas Devogele (2002)PermalinkReconstruction 3D de sites urbains par stéréoscopie optique haute résolution / Hélène Oriot in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 166 (Janvier 2002)PermalinkReconstruction de primitives linéaires 3D en multi-vues pour la modélisation de scènes urbaines / Franck Taillandier (2002)PermalinkAutomatic DEM generation for antartic terrain / A.J. Fox in Photogrammetric record, vol 17 n° 98 (October 2001 - March 2002)PermalinkDigital surface modelling by airborne laser scanning and digital photogrammetry for glacier monitoring / Emmanuel P. Baltsavias in Photogrammetric record, vol 17 n° 98 (October 2001 - March 2002)PermalinkSurface matching and change detection using a modified Hough transformation for robust parameter estimation / A.F. Habib in Photogrammetric record, vol 17 n° 98 (October 2001 - March 2002)Permalink