中文摘要：

为了使医学图像压缩更适合于医学诊断，利用医学图像为多帧图像序列的特点，选用三维小波对图像进行变换，并将二维零树结构扩展到三维零树．同时，提出一种简单有效的三维零树感兴趣区模板建立方法，在三维内嵌编码方法中运用感兴趣区域编码．该算法有效地控制了感兴趣区与背景区的图像质量，从而在不影响医疗诊断的基础上提高了系统的压缩比．

英文摘要：

In order to images that a sequence images compression is satisfy the need of diagnoses, based on the characteristic of medical of frames are formed in one body inspection, a new strategy for medical proposed . The three-dimension wavelet is adopted and the planar zerotree is extended to the three-dimensional zerotree. By making use of the three-dimensional zerotree structure, a simple method for ROI mask generation is put forward. Medical images are compressed by three-dimensional embedded coding with the compression of regions of interest. Simulation results have shown that it can efficiendy improve the compression ratio without affecting the diagnoses.