Embedded coding of medical images with regions of interest based on 3-D zerotree  

作　　者：MA Jing WU Chengke CHEN Dong ZHOU Youxi 

机构地区：[1]State Key Laboratory of Integrated Service Networks,Xidian University,Xi’an 710071,China

出　　处：《Frontiers of Electrical and Electronic Engineering in China》2007年第1期8-12,共5页中国电气与电子工程前沿（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.60272050).

摘　　要：In order to satisfy the need of diagnoses,based on the characteristic of medical images that a sequence of frames are formed in one body inspection,a new strategy for medical images compression is proposed.The 3-D wavelet is adopted and the planar zerotree is extended to the 3-D zerotree.By making use of the 3-D zerotree structure,a simple method for region of interest(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 efficiently improve the compression ratio without affecting the diagnoses.

关 键 词：3-D wavelet transform(3DWT) ROI 3-D zerotree ROI embedded zerotree wavelet(EZW) medical image compression 

分 类 号：TN9[电子电信—信息与通信工程]