The general context quantization problem is analyzed in detail and showed that context quantization is similar to a common vector quantizer can be designed by a Lloyd style iterative algorithm.

• 详细分析了一般context量化存在的问题 ,提出context量化与一般矢量量化问题的相似性 ,并且证明了 ,如果设定了一个合适的失真度量准则 ,运用Lloyd迭代算法可设计出最优的context量化器