4212 search results - page 220 / 843 » On Compressible Pairings and Their Computation |
154
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TSP
2010
15 years 1 months ago
2010
We consider the problem of recursively and causally reconstructing time sequences of sparse signals (with unknown and time-varying sparsity patterns) from a limited number of noisy...
185
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ICASSP
2011
IEEE
14 years 10 months ago
2011
IEEE
Due to multipath delay spread and relatively high sampling rate in OFDM systems, the channel estimation is formulated as a sparse recovery problem, where a hybrid compressed sensi...
193
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CISS
2010
IEEE
14 years 10 months ago
2010
IEEE
Abstract—Compressive sampling (CS) has emerged as significant signal processing framework to acquire and reconstruct sparse signals at rates significantly below the Nyquist rate...
302
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COMPGEOM
2011
ACM
14 years 10 months ago
2011
ACM
We propose a framework for compressive sensing of images with local geometric features. Specifically, let x ∈ RN be an N-pixel image, where each pixel p has value xp. The image...
197
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SSWMC
2004
15 years 8 months ago
2004
The image authentication system SARI proposed by Lin and Chang passes JPEG compression and rejects other malicious manipulations. Some vulnerabilities of the system have been repo...