Hardware design of 2-D analog filters for directly filtering raster scanned images in real time

Author

Kaufman, H.J. ; Sid-Ahmed, M.A.

Author_Institution

Dept. of Electr. Eng., Windsor Univ., Ont., Canada

fYear

1990

fDate

1-3 May 1990

Firstpage

3023

Abstract

A practical hardware design of a two-dimensional analog filter proposed by M.A. Sid-Ahmed (see IEEE Trans. Circuits and System vol.36, no.1, p.153-84, 1989) is developed. The structure is implemented using charge coupled device (CCD) analog shift registers and wideband operational amplifiers. The operation of the filter is demonstrated by processing TV video images in real time. The two-dimensional analog approach is evaluated by comparison with a two-dimensional distributed arithmetic digital filter. The analog approach offers realization at lower cost, less power consumption, higher resolution, and inherent true real-time capability independent of filter order

Keywords

active filters; charge-coupled device circuits; operational amplifiers; picture processing; real-time systems; shift registers; CCD analogue shift registers; TV video images; cost; directly filtering; filter order; hardware design; power consumption; raster scanned images; real time; real-time capability; two-dimensional analog filter; two-dimensional distributed arithmetic digital filter; wideband operational amplifiers; Broadband amplifiers; Charge coupled devices; Charge-coupled image sensors; Circuits and systems; Filtering; Filters; Hardware; Operational amplifiers; Shift registers; TV;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1990., IEEE International Symposium on

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/ISCAS.1990.112648

Filename

112648