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Auteur Renaud Keriven |
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A hybrid multiview stereo algorithm for modeling urban scenes / Florent Lafarge in IEEE Transactions on Pattern Analysis and Machine Intelligence, PAMI, vol 35 n° 1 (January 2013)
[article]
Titre : A hybrid multiview stereo algorithm for modeling urban scenes Type de document : Article/Communication Auteurs : Florent Lafarge, Auteur ; Renaud Keriven, Auteur ; Mathieu Brédif , Auteur ; Hoang-Hiep Vu, Auteur Année de publication : 2013 Article en page(s) : pp 5 - 17 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] champ aléatoire de Markov
[Termes IGN] maillage
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modèle de Markov
[Termes IGN] primitive géométrique
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] scène urbaineMots-clés libres : hybrid representation Résumé : (auteur) We present an original multiview stereo reconstruction algorithm which allows the 3D-modeling of urban scenes as a combination of meshes and geometric primitives. The method provides a compact model while preserving details: Irregular elements such as statues and ornaments are described by meshes, whereas regular structures such as columns and walls are described by primitives (planes, spheres, cylinders, cones, and tori). We adopt a two-step strategy consisting first in segmenting the initial mesh-based surface using a multilabel Markov Random Field-based model and second in sampling primitive and mesh components simultaneously on the obtained partition by a Jump-Diffusion process. The quality of a reconstruction is measured by a multi-object energy model which takes into account both photo-consistency and semantic considerations (i.e., geometry and shape layout). The segmentation and sampling steps are embedded into an iterative refinement procedure which provides an increasingly accurate hybrid representation. Experimental results on complex urban structures and large scenes are presented and compared to state-of-the-art multiview stereo meshing algorithms. Numéro de notice : A2013-816 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Autre URL associée : vers HAL Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TPAMI.2012.84 Date de publication en ligne : 10/04/2012 En ligne : https://doi.org/10.1109/TPAMI.2012.84 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80877
in IEEE Transactions on Pattern Analysis and Machine Intelligence, PAMI > vol 35 n° 1 (January 2013) . - pp 5 - 17[article]Documents numériques
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A hybrid multi-view stereo algorithm - version auteur HALAdobe Acrobat PDF Insertion of 3-D-primitives in mesh-based representations: Towards compact models preserving the details / Florent Lafarge in IEEE Transactions on image processing, vol 19 n° 7 (July 2010)
[article]
Titre : Insertion of 3-D-primitives in mesh-based representations: Towards compact models preserving the details Type de document : Article/Communication Auteurs : Florent Lafarge, Auteur ; Renaud Keriven, Auteur ; Mathieu Brédif , Auteur Année de publication : 2010 Article en page(s) : pp 1683 - 1694 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] approche hiérarchique
[Termes IGN] carte de profondeur
[Termes IGN] information sémantique
[Termes IGN] maille triangulaire
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] primitive géométrique
[Termes IGN] scène urbaineRésumé : (auteur) We propose an original hybrid modeling process of urban scenes that represents 3-D models as a combination of mesh-based surfaces and geometric 3-D-primitives. Meshes describe details such as ornaments and statues, whereas 3-D-primitives code for regular shapes such as walls and columns. Starting from an 3-D-surface obtained by multiview stereo techniques, these primitives are inserted into the surface after being detected. This strategy allows the introduction of semantic knowledge, the simplification of the modeling, and even correction of errors generated by the acquisition process. We design a hierarchical approach exploring different scales of an observed scene. Each level consists first in segmenting the surface using a multilabel energy model optimized by -expansion and then in fitting 3-D-primitives such as planes, cylinders or tori on the obtained partition where relevant. Experiments on real meshes, depth maps and synthetic surfaces show good potential for the proposed approach. Numéro de notice : A2010-662 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TIP.2010.2045695 Date de publication en ligne : 15/03/2010 En ligne : https://doi.org/10.1109/TIP.2010.2045695 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91762
in IEEE Transactions on image processing > vol 19 n° 7 (July 2010) . - pp 1683 - 1694[article]Combining meshes and geometric primitives for accurate and semantic modeling / Florent Lafarge (2009)
Titre : Combining meshes and geometric primitives for accurate and semantic modeling Type de document : Article/Communication Auteurs : Florent Lafarge, Auteur ; Renaud Keriven, Auteur ; Mathieu Brédif , Auteur Editeur : Paris : Ecole Nationale des Ponts et Chaussées ENPC Année de publication : 2009 Conférence : BMVC 2009, British Machine Vision Conference 07/09/2009 10/09/2009 Londres Royaume-Uni OA Proceedings Importance : 11 p. Format : 21 X 30 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] maillage par triangles
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modélisation 3D
[Termes IGN] primitive géométrique
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] vision par ordinateurRésumé : (Auteur) 3D-models of urban scenes are very useful for many applications such as urban planning, virtual reality, disaster recovery or computer games. The reconstruction of such scenes is a well known computer vision problem which has been addressed by various approaches providing integral building representations but remains an open issue. We propose an hybrid representation of noisy 3D models such as buildings obtained by multi-view stereo. This representation merges meshes and 3D-primitives. It provides high compression rates while keeping details, introduces semantic knowledge despites noise corruption, and even improves accuracy of the original reconstruction. Numéro de notice : C2009-045 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE Nature : Poster nature-HAL : Poster-avec-CL DOI : 10.5244/C.23.38 En ligne : https://hal.inria.fr/hal-00781776/file/2009_bmvc.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64297 Documents numériques
en open access
Combining meshes and geometric primitives - pdfAdobe Acrobat PDF