Title :
CORDIC-based architectures for the efficient implementation of discrete wavelet transforms
Author :
Simon, Sven ; Rieder, Peter ; Schimpfle, C. ; Nossek, Josef A.
Author_Institution :
Inst. for Network Theory & Circuit Design, Tech. Univ. Munich, Munich, Germany
Abstract :
In this paper, efficient implementations of the discrete wavelet transform (DWT) are examined. A new architecture, based on single steps of the CORDIC algorithm with less operations compared to classical lattice or transversal filter structures is presented. In addition to the computational savings, a generalized implementation of a single CORDIC-based approximate rotation as a module generator is sufficient to automate the full custom layout generation of the arithmetic part of the DWT. An exemplary VLSI implementation for a typical image processing application is presented
Keywords :
VLSI; digital arithmetic; digital signal processing chips; image processing; parallel architectures; transforms; wavelet transforms; CORDIC algorithm; CORDIC-based approximate rotation; CORDIC-based architectures; DWT implementation; VLSI implementation; discrete wavelet transforms; full custom layout generation; image processing application; module generator; Arithmetic; Circuit synthesis; Discrete wavelet transforms; Filter bank; Image processing; Lattices; Signal analysis; Transversal filters; Very large scale integration; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.541948