Abstract. A nonlocal variational formulation for interpolating a sparsely sampled image is introduced in this paper. The proposed variational formulation, originally motivated by image inpainting problems, encourages the transfer of information between similar image patches, following the paradigm of exemplar-based methods. Contrary to the classical inpainting problem, no complete patches are available from the sparse image samples, 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 some departures from the variational setting, showing a remarkable
As an exception, Facciolo et al. REF present a method for interpolating sparsely sampled images, which uses a variational formulation to transfer information between similar image patches.
Exemplar-Based Interpolation of Sparsely Sampled Images
EMMCVPR
Computer Science