HDTV COMPATIBLE TRANSMISSION-SYSTEM

被引：0
作者：
GLENN, WE
GLENN, KG
机构：
来源：
SMPTE JOURNAL | 1987年 / 96卷 / 03期
关键词：
TELEVISION - Picture Quality - TELEVISION EQUIPMENT - Cameras;
D O I：
10.5594/J03194
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：
Psychophysical measurements of vision have been used to design a compatible HDTV transmission system. A standard 525-line NTSC transmission is combined with a detail transmission in an additional half-channel of bandwidth to recreate an 1125-line HDTV image. The concept also makes possible the construction of a bichannel HDTV camera that uses progressive scanning of the high-resolution information at modest bandwidths. This camera has been demonstrated with both a standard 525-line NTSC output and an 1125-line HDTV output.
引用
收藏
页码：242 / 246
页数：5
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