The Unary code is applied in the binarization of the translation coefficients in the national standard AVS. It is preponderant for the small values, but will bring more redundancy for the bigger ones.

• 在AVS标准中,变换系数level值的二值化方案采用了Unary码,Unary码对较小的整数值二值化效果较好,但对较大的值则会造成很大的冗余,从而影响了CABAC的编码效率。