摘要
现有电视制式的亮／色（Y／C）信号共用一个频带，用一般模拟滤波器进行Y／C分离时，必然会损失部分频率分量，降低电视图像的可视分辨率．本文提出一种采用数字技术对Y／C信号进行无频率成分损失的频谱分离方法，可有效提高静态图像可视分辨率，对动态图像的清晰度也有明显改善，这将为我国电视产业向HDTV转移提供一种过渡技术．
In this paper, a digital combed fliter is proposed to separate the Y/C signal instead of the commonly-used analog filter. Various types of such filter with different seperation performance are analyzed. The effectiveness of the proposed filter in improving the reproduction quality of the TV signal is investigated.
出处
《深圳大学学报（理工版）》
EI
CAS
1998年第4期37-44,共8页
Journal of Shenzhen University(Science and Engineering)
