DIGITAL NOISE REDUCER FOR ENCODED NTSC SIGNALS

被引：18

作者：

MCMANN, RH ^{[1
]}

KREINIK, S ^{[1
]}

MOORE, JK ^{[1
]}

KAISER, A ^{[1
]}

ROSSI, J ^{[1
]}

机构：

[1] CBS LABS,CTR TECHNOL,227 HIGH RIDGE RD,STAMFORD,CT 06905

来源：

SMPTE JOURNAL | 1978年 / 87卷 / 03期

关键词：

D O I：

10.5594/J17406

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A noise reduction system is described which uses a digital frame store operating as an adaptive recursive filter, under the control of a motion detector employing comb filtering and signal modification. Using these techniques, an improvement of 15 dB can readily be achieved without introducing objectionable artifacts into the picture. Among the many areas of application of the digital noise reducer are: improvement of electronic newsgathering material; of multigeneration 1-in or 2-in videotape; microwave reception; CATV satellite reception; telecine film-grain reduction (monochrome and color); and off-air reception.

引用

页码：129 / 133

页数：5