Paper Info
Title
Dual frame of frequency warping operators
Abstract
In this work we introduce the dual frame operator relative to the aliasing compensated frequency warping operator for non-smooth warping functions. Except for approximation errors, the resulting operators pair allows perfect reconstruction. Unlike previously introduced frequency warping frame and dual frame pair, which was obtained by adding redundancy to the group delay shift covariance analysis space, in this case no modifications are needed to the analysis operator. Anyway, to calculate the dual frame, previously introduced computational models are exploited and forward developed. Basically, the dual frame construction is based on an operator power series which is entirely precomputed, so the complexity of frequency warping inversion is not increased.
Year
DOI
Venue
2011
10.1109/ICASSP.2011.5947186
Acoustics, Speech and Signal Processing
Keywords
Field
DocType
Dual Frame,Frequency Warping,Perfect Reconstruction
Signal processing,Mathematical optimization,Image warping,Computer science,Group delay and phase delay,Fourier transform,Redundancy (engineering),Residual frame,Aliasing,Operator (computer programming)
Conference
ISSN
ISBN
Citations 
1520-6149 E-ISBN : 978-1-4577-0537-3
978-1-4577-0537-3
0
PageRank 
References 
Authors
0.34
6
2
Name
Order
Citations
PageRank
S. Caporale1164.68
Nicolo Speciale2226.35