Title :
Sparse representations of images using overcomplete complex wavelets
Author :
Adeyemi, T. ; Davies, Mike
Author_Institution :
DSP & Multimedia Group, London Univ.
Abstract :
This paper describes an algorithm developed for generating sparse representations of images in a quick and efficient way using an overcomplete subband representation. Here we demonstrate the algorithm applied to Kingsbury´s popular dual tree complex wavelet transform
Keywords :
image representation; trees (mathematics); wavelet transforms; dual tree complex wavelet transform; image representation; overcomplete complex wavelets; overcomplete subband representation; sparse representations; Dictionaries; Equations; Iterative algorithms; Jacobian matrices; Least squares approximation; Least squares methods; Signal processing; Signal processing algorithms; Sparse matrices; Wavelet transforms;
Conference_Titel :
Statistical Signal Processing, 2005 IEEE/SP 13th Workshop on
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-9403-8
DOI :
10.1109/SSP.2005.1628715
