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

Volume

4

fYear

1996

fDate

12-15 May 1996

Firstpage

77

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCAS.1996.541948

Filename

541948