Title
Quasi perfect reconstruction frequency warping operator
Abstract
In this work we introduce a new frequency warping operator for non-smooth warping function allowing perfect reconstruction. The transformation is based on a previously introduced aliasing compensated frequency warping operator having a residual error because of finite output dimension. By adding some redundancy, the effect of an infinite output dimension can be taken into account in a compressed way, based on an analytical factorization. In the reconstruction process, the additional redundant samples are expanded, making the inverse transform differ from the direct one, but guaranteeing perfect reconstruction.
Year
DOI
Venue
2010
10.1109/ICASSP.2010.5495740
Acoustics Speech and Signal Processing
Keywords
Field
DocType
Biorthogonal Transform,Frequency Warping,Perfect Reconstruction
Mathematical optimization,Image warping,Computer science,Filter bank,Fourier transform,Aliasing,Redundancy (engineering),Time–frequency analysis,Operator (computer programming),Wavelet transform
Conference
ISSN
ISBN
Citations 
1520-6149 E-ISBN : 978-1-4244-4296-6
978-1-4244-4296-6
1
PageRank 
References 
Authors
0.38
4
3
Name
Order
Citations
PageRank
S. Caporale1164.68
Luca De Marchi23713.21
Nicolo Speciale3226.35