On the average of two line chromasignal in succession, delay demodulator made color image vertical resolution reduce, the paper analyses and discusses this question.
延时解调器将相邻二行的色度信进行平均使彩色图象垂直分解力下降，本文对这一问题进行分析和讨论。
2
In Human Vision System, the optical signal is separated to brightness and chroma information, and they are processing differently. It is an important quality of Human Vision System.