摘要
对于现有16:9宽屏幕彩电在接收4:3幅型比图像时出现的水平失真现象,提出了一种有效的数字压缩技术,将亮度信号(Y)、两个色差信号(R-Y,B-Y)进行数字化处理,按一定规则在存储器中进行信号的存取,实现图像在时间轴上的压缩,解决了图像的水平失真问题。
In order to mitigate the effect of horizontal distortion when using 16:9 wide screen color TV to receive signals with width-to-height of 4:3, a new data compression technique is proposed. The illuminance signal (Y) and two color difference signals (R-Y,B-Y) are digitized before they are stored in and retrieved from the memory according to some pre-specified rules. Temporal image compression is complemenbed. Horizontal distortion is solved.
出处
《电视技术》
北大核心
2000年第7期51-53,共3页
Video Engineering
关键词
高清晰度电视
宽屏彩电
图像压缩
high definition TV
wide screen color TV
temporal image compression
sample frequency