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Exemplar-based interpolation of sparsely sampled images
Facciolo Furlan, Gabriele; Arias, Pablo; Caselles, Vicente; Sapiro, Guillermo
A nonlocal variational formulation for interpolating a sparsel sampled image is introduced in this paper. The proposed variational formulation, originally motivated by image inpainting problems, encouragesthe transfer of information between similar image patches, following the paradigm of exemplar-based methods. Contrary to the classical inpaintingproblem, no complete patches are available from the sparse imagesamples, and the patch similarity criterion has to be redefined as here proposed. Initial experimental results with the proposed framework, at very low sampling densities, are very encouraging. We also explore somedepartures from the variational setting, showing a remarkable ability to recover textures at low sampling densities.
Imatges -- Processament -- Matemàtica
Imatges -- Processament -- Tècniques digitals
Interpolació (Matemàtica)
© Springer-Verlag Berlin Heidelberg 2009. The original publication is available at

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