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» Filter bank frame expansions with erasures
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TIT
2002
69views more  TIT 2002»
13 years 4 months ago
Filter bank frame expansions with erasures
Abstract--We study frames for robust transmission over the Internet. In our previous work, we used quantized finite-dimensional frames to achieve resilience to packet losses; here,...
Jelena Kovacevic, Pier Luigi Dragotti, Vivek K. Go...
CORR
2010
Springer
99views Education» more  CORR 2010»
13 years 4 months ago
Filter Bank Fusion Frames
In this paper we characterize and construct novel oversampled filter banks implementing fusion frames. A fusion frame is a sequence of orthogonal projection operators whose sum can...
Amina Chebira, Matthew Fickus, Dustin G. Mixon
ICIP
2001
IEEE
14 years 6 months ago
Pyramidal directional filter banks and curvelets
A flexible multiscale and directional representation for images is proposed. The scheme combines directional filter banks with the Laplacian pyramid to provides a sparse represent...
Minh N. Do, Martin Vetterli
EJASP
2010
92views more  EJASP 2010»
12 years 11 months ago
Optimized Paraunitary Filter Banks for Time-Frequency Channel Diagonalization
We adopt the concept of channel diagonalization to time-frequency signal expansions obtained by DFT filter banks. As a generalization of the frequency domain channel representatio...
Ziyang Ju, Thomas Hunziker, Dirk Dahlhaus
TSP
2010
12 years 11 months ago
Systematic construction of real lapped tight frame transforms
Abstract--We present a constructive algorithm for the design of real lapped equal-norm tight frame transforms. These transforms can be efficiently implemented through filter banks ...
Aliaksei Sandryhaila, Amina Chebira, Christina Mil...