Show simple item record

dc.contributor.authorSalvador Marcos, Jordi
dc.contributor.authorCasas Pla, Josep Ramon
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationSalvador, J.; Casas, J. A compact 3D representation for multi-view video. A: International Conference on 3D Imaging. "International Conference on 3D Imaging". Liège: 2011, p. 1-8.
dc.description"Best Scientific Paper Award" atorgat per 3D Stereo Media
dc.description.abstractThis paper presents a methodology for obtaining a 3D reconstruction of a dynamic scene in multi-camera settings. Our target is to derive a compact representation of the 3D scene which is effective and accurate, whatever the number of cameras and even for very-wide baseline settings. Easing realtime 3D scene capture has outstanding applications in 2D and 3D content production, free viewpoint video of natural scenes and interactive video applications. The method proposed here has several original contributions on how to accelerate the process: it exploits spatial and temporal consistency for speeding up reconstruction, dividing the problem in two parts. First, 3D surfaces are efficiently sampled to obtain a silhouette-consistent set of colored surface points and normals, using a novel algorithm presented in this paper. Then, a fast, greedy meshing algorithm retrieves topologically correct continuous surfaces from the dense sets of oriented points, providing a suitable representation for multi-view video. Compared to other techniques in the literature, the presented approach is capable of retrieving 3D surfaces of foreground objects in real-time by exploiting the computing capabilities of GPUs. This is feasible due to the parallelized design of the surface sampling algorithm. The reconstructed surfaces can effectively be used for interactive representations. The presented methodology also offers good scalability to large multi-view video settings
dc.format.extent8 p.
dc.subjectÀrees temàtiques de la UPC::So, imatge i multimèdia::Creació multimèdia::Imatge digital
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
dc.subject.lcshImage processing
dc.titleA compact 3D representation for multi-view video
dc.typeConference report
dc.subject.lemacImatges -- Processament -- Tècniques digitals
dc.contributor.groupUniversitat Politècnica de Catalunya. GPI - Grup de Processament d'Imatge i Vídeo
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorSalvador, J.; Casas, J.
local.citation.contributorInternational Conference on 3D Imaging
local.citation.publicationNameInternational Conference on 3D Imaging

Files in this item


This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder