Title :
Joint low-rank and sparse light field modelling for dense multiview data compression
Author :
Hosseini Kamal, Mahdad ; Vandergheynst, P.
Author_Institution :
Signal Process. Lab. (LTS2), Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
The effective representation of the structures in the multiview images is an important problem that arises in visual sensor networks. This paper presents a novel recovery scheme from compressive samples which exploit local and non-local correlated structures in dense multiview images. The recovery model casts into convex minimization framework which penalizes the sparse and low-rank constraints on the data. The sparsity constraint models the correlations among pixels in a single image whereas the global correlations across images are modelled with the low-rank prior. Simulation results demonstrate that our approach achieves better reconstruct quality in comparison with the state-of-the-art reconstruction schemes.
Keywords :
convex programming; data compression; image coding; image reconstruction; minimisation; quality control; convex minimization framework; dense multiview data compression; image quality; image reconstruction; low-rank light field modelling; multiview images; sparse light field modelling; visual sensor networks; Cameras; Compressed sensing; Image coding; Image reconstruction; Joints; Sparse matrices; Compressive acquisition; Compressive sensing; Low-rank matrix recovery; Multiview imaging; Sparsity;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6638375