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ICASSP
2009
IEEE
14 years 9 months ago
On the recovery of nonnegative sparse vectors from sparse measurements inspired by expanders
This paper studies compressed sensing for the recovery of non-negative sparse vectors from a smaller number of measurements than the ambient dimension of the unknown vector. We fo...
M. Amin Khajehnejad, Babak Hassibi
107
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ICASSP
2011
IEEE
14 years 3 months ago
Improved thresholds for rank minimization
—Nuclear norm minimization (NNM) has recently gained attention for its use in rank minimization problems. In this paper, we define weak, sectional and strong recovery for NNM to...
Samet Oymak, M. Amin Khajehnejad, Babak Hassibi
ICIP
2003
IEEE
16 years 1 months ago
Spread transform watermarking for video sources
Spread Transform (ST) is a quantization watermarking algorithm in which vectors of the wavelet coefficients of a host work are quantized, using one of two dithered quantizers, to ...
John Earl, Nick G. Kingsbury
TIP
1998
125views more  TIP 1998»
14 years 11 months ago
Additive vector decoding of transform coded images
—In a standard transform coding scheme of images or video, the decoder can be implemented by a table-lookup technique without the explicit use of an inverse transformation. In th...
Siu-Wai Wu, Allen Gersho
ICIP
1998
IEEE
16 years 1 months ago
Joint Utilization of Fixed and Variable-Length Codes for Improving Synchronization Immunity for Image Transmission
Robust transmission of images is achieved by using xed and variable-length coding together without much loss in compression e ciency. The probability distribution function of a DC...
A. Aydin Alatan, John W. Woods