Title :
Modified distributed arithmetic based architecture for discrete wavelet transforms
Author :
Longa, P. ; Miri, A. ; Bolic, M.
Author_Institution :
Univ. of Waterloo, Waterloo
Abstract :
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.
Keywords :
discrete wavelet transforms; distributed arithmetic; high-pass filters; low-pass filters; multiplying circuits; table lookup; circuitry; discrete wavelet transform; distributed arithmetic; dual filterbanks; highpass filter; look-up table; lowpass filter; multiplier-less filterbank architecture;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20082418