A type of distortion that results when DPCM is applied to television.It manifests itself as a visually noticeable jitter in those parts of the image that have high - contrast edges.

• 当差分脉码调制（DPCM）用于电视时所产生的一种失真。在具有高反差边缘的图象上，这种失真表现为一种明显的视觉抖动。