Reducing the composite triple beats impairment in cable television pictures

TitleReducing the composite triple beats impairment in cable television pictures
Publication TypeJournal Article
Year of Publication1995
AuthorsShi, P., and R. K. Ward
JournalConsumer Electronics, IEEE Transactions on
Pagination210 -220
Date Publishedfeb.
Keywordscable operators, cable television, cable television picture quality, cable television pictures, composite triple beats reduction, filtering theory, filters, image processing, inter-frame filter, interference suppression, intermodulation distortion, intraframe filter, signal levels, television interference, television receivers, thermal noise, thermal noise reduction, TV set, TV set-top convertor

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


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