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ICASSP
2009
IEEE
16 years 1 months ago
Compressive sampling of pulse trains: Spread the spectrum!
In this paper we consider the problem of sampling far below the Nyquist rate signals that are sparse linear superpositions of shifts of a known, potentially wide-band, pulse. This...
Farid M. Naini, Rémi Gribonval, Laurent Jac...
HCI
2009
15 years 4 months ago
The Pluses and Minuses of Obtaining Measurements from Digital Scans
Digital scanners are commonplace and are used in many different applications to obtain three-dimensional shapes and linear and circumferential measurements. Even though scanners ca...
Ravindra S. Goonetilleke, Channa P. Witana, Jianhu...
TSP
2010
15 years 1 months ago
On entropy rate for the complex domain and its application to i.i.d. sampling
We derive the entropy rate formula for a complex Gaussian random process by using a widely linear model. The resulting expression is general and applicable to both circular and non...
Wei Xiong, Hualiang Li, Tülay Adali, Yi-Ou Li...
ICASSP
2011
IEEE
14 years 10 months ago
System-theoretic formulation and analysis of dynamic consensus propagation
In our previous work we have proposed a dynamic version of the consensus propagation (CP) algorithm introduced by Moallemi and Van Roy. Here, we pursue a system theoretic approach...
Valentin Schwarz, Gerald Matz
CVPR
2005
IEEE
16 years 8 months ago
Higher Order Whitening of Natural Images
Natural images are approximately scale invariant resulting in long range statistical regularities that typically obey a power law. For example, images have considerable regularity...
Joshua Gluckman