Furthermore, only 4 segment maps are allowed, for a maximum of 4 quantizers per frame.
此外，只允许4个段地图，因为最高每帧只能有4个量化器。
2
Averaging period: This setting does something similar to above, but instead it does it with the quantizers.
平均周期——这个设定和上面的很相似，只不过是用量化器参数来代替而已。
3
This paper proposes a new method of interframe ADPCM Coding based on MSEP of last field, which gives design parameters of three predictors and five quantizers by five typical image.