The distributing characteristics of medical image wavelet coefficients have been studied in-depth and an efficient coding method, i.e.Adaptive Grouping Huffman based on wavelet transform is presented.

• 在对医学图像小波系数的分布特征进行深入分析的基础上，提出了一种高效的信源编码方法，即基于小波变换的自适应分组霍夫曼编码方法。