In this paper,combined with highly efficient SPIHT algorithm,an arbitrary shape integer or non-integer wavelet transform is employed to implement the lossless compression of region of interest (ROI) with arbitrary shape and lossy compression of non-ROI.

• 本文采用一种任意形状的整型或非整型小波变换 ；结合高效的SPIHT(SetPartitioningInHierarchicalTrees)图像编码算法 ；分别实现了任意形状感兴趣区的无损压缩和非感兴趣的有损压缩算法 .