Application of wavelet packet analysis to signal compression
LU Yu-rong · Journal of Chengdu University of Technology · 2004
Wavelet packet analysis has been rapidly developed in recent years based on wavelet transform. Signal is expressed as a linear combination of a set of best bases of wavelet packet, and the energy of (expansion) coefficients is concentrated in a small number of coefficients because of the good location (properties) of wavelet packet best bases. So it is possible to achieve high compression ratios without any loss of useful and important information of the compressed signal. Owing to the limitation of wavelet (transform), the authors of this paper have researched wavelet packet analysis in the signal compression and given some experiments.