255 search results - page 19 / 51 » Sampling Sparse Signals on the Sphere: Algorithms and Applic... |
189
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ICASSP
2010
IEEE
15 years 6 months ago
2010
IEEE
Sparse coding networks, which utilize unsupervised learning to maximize coding efficiency, have successfully reproduced response properties found in primary visual cortex [1]. Ho...
197
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TIT
2010
15 years 1 months ago
2010
In this paper, we study the number of measurements required to recover a sparse signal in M with L nonzero coefficients from compressed samples in the presence of noise. We conside...
170
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ICASSP
2011
IEEE
14 years 10 months ago
2011
IEEE
Sparse representations over redundant dictionaries offer an efficient paradigm for signal representation. Recently block-sparsity has been put forward as a prior condition for so...
385
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CCIW
2011
Springer
14 years 10 months ago
2011
Springer
The representation model that considers an image as a sparse linear combination of few atoms of a predefined or learned dictionary has received considerable attention in recent ye...
186
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MOBICOM
2012
ACM
13 years 9 months ago
2012
ACM
GPS is one of the most widely used wireless systems. A GPS receiver has to lock on the satellite signals to calculate its position. The process of locking on the satellites is qui...