Modified distributed arithmetic based architecture for discrete wavelet transforms
Patrick Longa, A. Miri, Miodrag Bolić · Electronics Letters · 2008
A highly area-efficient multiplier-less filterbank architecture for one- and two-dimensional discrete wavelet transforms (DWT) is presented. The look-up table (LUT) structure in traditional distributed arithmetic (DA)-based filter structures has been dissolved to implement a LUT-less DA-DWT with dual filterbanks, which permits the reuse of the same circuitry for both highpass and lowpass filters.