DIGITAL TELEVISION AT REDUCED BIT RATES

被引:3
作者
CONNOR, D [1 ]
机构
[1] MACDONALD DETTWILER & ASSOC MDA LTD,RICHMOND V6X 2Z9,BC,CANADA
来源
SMPTE JOURNAL | 1977年 / 86卷 / 11期
关键词
INFORMATION THEORY - Digital Signals - TELEVISION BROADCASTING;
D O I
10.5594/J06719
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
Various studies carried out on PAL and NTSC signals can be used to provide conservative estimates of the minimum bit rates required to digitally encode NTSC signals at various quality levels. These projections indicate that broadcast-quality signals can be obtained at bit rates of 43 Mbits/s using differential pulse-code-modulation (DPCM) encoding techniques. More sophisticated techniques such as component and interframe encoding may yield acceptable quality signals at substantially lower bit rates.
引用
收藏
页码:829 / 831
页数:3
相关论文
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