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» On sparse signal representations
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ICASSP
2010
IEEE
15 years 6 months ago
Morphological wavelets and the complexity of dyadic trees
In this paper we reveal a connection between the coefficients of the morphological wavelet transform and complexity measures of dyadic tree representations of level sets. This le...
Zhen James Xiang, Peter J. Ramadge
CORR
2008
Springer
178views Education» more  CORR 2008»
15 years 6 months ago
Model-Based Compressive Sensing
Compressive sensing (CS) is an alternative to Shannon/Nyquist sampling for acquisition of sparse or compressible signals that can be well approximated by just K N elements from a...
Richard G. Baraniuk, Volkan Cevher, Marco F. Duart...
PATMOS
2004
Springer
15 years 12 months ago
Optimal Logarithmic Representation in Terms of SNR Behavior
This paper investigates the Signal-to-Noise Ratio (SNR) performance of the Logarithmic Number System (LNS) representation against the SNR performance of the fixed-point representa...
Panagiotis D. Vouzis, Vassilis Paliouras
DCC
2008
IEEE
15 years 6 months ago
Coding Overcomplete Representations of Audio Using the MCLT
We propose a system for audio coding using the modulated complex lapped transform (MCLT). In general, it is difficult to encode signals using overcomplete representations without ...
Byung-Jun Yoon, Henrique S. Malvar
ICIP
2009
IEEE
16 years 7 months ago
Poisson-haar Transform: A Nonlinear Multiscale Representation For Photon-limited Image Denoising
We present a novel multiscale image representation belonging to the class of multiscale multiplicative decompositions, which we term Poisson-Haar transform. The proposed represent...