Title :
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
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;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112648
