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Photo-consistent surfaces from a sparse set of viewpoints
Salvador Marcos, Jordi; Casas Pla, Josep Ramon
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GPI - Grup de Processament d'Imatge i Vídeo
We address the problem of reconstructing 3D shapes from color data available in a sparse set of views from all directions of a scene. As an advantage when compared to multiview stereo approaches, our method is able to reconstruct object surfaces from a small number of views in wide-baseline setups. This introduces a trade-off between reconstruction accuracy and spatial coverage. The proposed algorithm obtains candidate surface points using a photo-consistency test and restricting the analysis to foreground pixels. The final surface points are extracted by iteratively carving away candidate points that are not photo-consistent with the complete multiview set. Finally, a surface patch is obtained from each colored surface point by estimating its orientation. Experimental results reflect the validity of the approach by comparing it to a voxelized implementation.
Peer Reviewed
Àrees temàtiques de la UPC::So, imatge i multimèdia::Dispositius de so, imatge i multimèdia
Image processing
Imatges -- Processament
Attribution-NonCommercial-NoDerivs 3.0 Spain

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