Double adaptive wavelet transforms based on lifting scheme applied on the piecewise smooth signals
Yao Qing-dong · Journal of Circuits and Systems · 2005
Because of the better temporal and frequency properties, the wavelet linear approximation can approximate smooth signals very efficiently with the constant size filter. However, standard wavelet linear approximation techniques cannot achieve similar results for signal which are not smooth. Based on the adaptive lifting scheme with perfect reconstruction presented by Piella G, this paper proposed the new adaptive wavelet transform which can achieve the better linear approximation for the piecewise continuous signals.