928 search results - page 2 / 186 » On adaptive wavelet packets |
ICIP
1998
IEEE
14 years 7 months ago
1998
IEEE
In this paper, we extend the statistical model-based Estimation-Quantization (EQ) wavelet image coding algorithm introduced in [?] to include an adaptive transform component. For ...
ICIP
2009
IEEE
13 years 4 months ago
2009
IEEE
This article introduces a best basis search algorithm in a nonstationary (NS) wavelet packets dictionary. It computes an optimized labeled quad-tree that indexes the filters used ...
ISCAS
1993
IEEE
13 years 10 months ago
1993
IEEE
An algorithm is presented for fast implementation of time-varying wavelet packets maintaining perfect reconstruction throughout transitions. It is based on filter banks known as t...
TSP
2008
13 years 6 months ago
2008
The two-band discrete wavelet transform (DWT) provides an octave-band analysis in the frequency domain, but this might not be "optimal" for a given signal. The discrete w...
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
The subband histograms of wavelet packet bases adapted to individual texture classes often fail to display the leptokurtotic behaviour shown by the standard wavelet coefficients o...