Title :
Signal-adapted wavelet filter bank design
Author_Institution :
Inst. of Commun. Eng., Tongyuan Univ., Nanjing
fDate :
3/5/1998 12:00:00 AM
Abstract :
A method for designing wavelet filter banks that are adapted to the given signal is proposed. The method is based on optimising a certain cost function with constraint conditions. Gradient-descent optimisation techniques are not adequate for the minimisation of such a cost function. Evolutionary programming is used to resolve this difficult optimisation problem. Simulation results are given
Keywords :
adaptive filters; filtering theory; image coding; optimisation; speech coding; wavelet transforms; constraint conditions; cost function; evolutionary programming; gradient-descent optimisation techniques; image coding; simulation results; speech coding; wavelet filter banks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980342
