A real-time 2-D median based filter for video signals

Author

Li, Jim S. Jimmy

Author_Institution

Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch

Volume

39

Issue

2

fYear

1993

fDate

5/1/1993 12:00:00 AM

Firstpage

115

Lastpage

121

Abstract

A 2-D, multishell median-based filter for real-time video signal processing is presented. The device is able to remove impulse and missing line noise in real-time without blurring sharp video images. A prototype using 75 standard transistor-transistor logic (TTL) chips has been realized on one single speedwire prototype board of size 17×30 cm² and its structure is suitable for VLSI implementation. The statistical performance of the nonlinear filter has been investigated and compared with that of standard 2-D median filters. It is shown that the filter has characteristics superior to those of its median-based counterparts while the hardware implementation is much simpler

Keywords

image processing equipment; interference suppression; random noise; real-time systems; transistor-transistor logic; two-dimensional digital filters; video equipment; TTL chips; VLSI implementation; blurring; hardware implementation; impulse noise; missing line noise; multishell filter; nonlinear filter; prototype; real-time 2-D median based filter; signal processing; speedwire prototype board; statistical performance; transistor-transistor logic; two dimensional filter; video signals; Adaptive filters; Decoding; Design engineering; Filtering; Hardware; Prototypes; Signal processing; Silicon; Very large scale integration; Video signal processing;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.214816

Filename

214816