描述了一种测量彩色信号中随机噪声对电视图像损害的技术。通过这种测量方法得出的值，可以比较不同的录像带、记录系统和录像带的随机噪声特性。适用于所有IEC认可的视频记录格式。

Describes a technique for measuring the impairment of a TV picture due to random noise in a colour signal. The values which result from this measurement method make it possible to compare different video tape records, recording systems and video tapes for their random noise characteristics. Is intended for use with all IEC recognized video recording formats.