Journal
IEEE TRANSACTIONS ON SIGNAL PROCESSING
Volume 65, Issue 17, Pages 4538-4550Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSP.2017.2712128
Keywords
Compressed sensing (CS); restricted Boltzmann machine (RBM); deep learning; deep belief network (DBN); wavelets; dictionary learning
Categories
Funding
- National Science Foundation [1319598]
- Div Of Information & Intelligent Systems
- Direct For Computer & Info Scie & Enginr [1319598] Funding Source: National Science Foundation
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This paper proposes a CS scheme that exploits the representational power of restricted Boltzmann machines and deep learning architectures to model the prior distribution of the sparsity pattern of signals belonging to the same class. The determined probability distribution is then used in a maximum a posteriori approach for the reconstruction. The parameters of the prior distribution are learned from training data. The motivation behind this approach is to model the higher-order statistical dependencies between the coefficients of the sparse representation, with the final goal of improving the reconstruction. The performance of the proposed method is validated on the Berkeley Segmentation Dataset and the MNIST Database of handwritten digits.
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