Reducing the composite triple beats impairment in cable television pictures

Author

Shi, Pingnan ; Ward, Rabab K.

Author_Institution

Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada

Volume

41

Issue

1

fYear

1995

fDate

2/1/1995 12:00:00 AM

Firstpage

210

Lastpage

220

Abstract

Two major impairments which affect the cable television picture quality are the thermal noise and the composite triple bears (CTB). We introduce a novel CTB reducing scheme which reduces the visual effect of the CTB significantly. This in turn allows cable operators to boost the signal levels so as to reduce thermal noise, thus improving the picture quality of their cable systems. The CTB reducing scheme consists of an intraframe and an inter-frame filter. Each of these filters exploits the differences in the characteristics between the CTB and the non-noisy pictures. The CTB reducer may be installed in a TV set-top convertor or inside the TV set

Keywords

cable television; filtering theory; filters; image processing; interference suppression; intermodulation distortion; television interference; television receivers; thermal noise; TV set; TV set-top convertor; cable operators; cable television picture quality; cable television pictures; composite triple beats reduction; inter-frame filter; intermodulation distortion; intraframe filter; signal levels; thermal noise reduction; Cable TV; Converters; Filtering; Monitoring; Noise level; Noise reduction; Signal processing; Snow; Video sequences; Visual effects;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.370329

Filename

370329