医学图象位面行程编码实时压缩策略  

STRATEY FOR COMPRESSION OF MEDICAL IMAGE IN REAL TIME WITH BIT-PLANE RUNLENGTH CODING

作　　者：刘济林[1] 张汝文[1] 顾伟康[1] 

机构地区：[1]浙江大学

出　　处：《中国生物医学工程学报》1994年第2期132-142,共11页Chinese Journal of Biomedical Engineering

摘　　要：本文研究了医学图象的位面行程编码及其硬件实现方案，用于动态图象（２５帧／秒）的不失真实时压缩和恢复，以熵为指标对几种图象信源的描述形式进行评价后表明，采用位面结构描述信源更有利于提高压缩效率。利用我们提出的一种定长行程码方法对ＣＴ图象进行位面行程编码压缩，其压缩比显著提高。并研制了基于此方法的编码器和恢复器。A strategy for compression of medical images with bit-plane runlength coding and it's hardware implementation have been investigated to compress and restore video medical images(25 frames per second) errorfree. Evaluation of several descriptions of image source has shown that the description with bit-plane is more benificial to increase compression ratio. CT images with bit-plane have been compressed with fixed-length coding developed by us and the ratio has been notable raised. The coder and the decoder based on the strategy have been implemented.

关 键 词：医学图象 编码 实时图象 图象压缩 

分 类 号：R319[医药卫生—基础医学]