An analog artifact where bright objects in the picture cause a shifting of level that extends horizontally all the way across the picture. Typically caused by distortions to the frequency components below the horizontal line frequency.

• 在画面显示中亮的物体引起亮度漂移的一种模拟的非自然信号。它沿水平方向逐步扩展,通常是由低于行频的频率畸变造成的。