摘要
满足医学影象临床诊断需要的无失真压缩编码技术的研究是图象压缩研究的新领域,也是PACS系统和远程医疗诊断系统研究的热点之一。该文提出将三维小波压缩技术应用于CT、MRI等所产生的多帧断层图象,把二维医学序列图象组视为三维图象进行了研究,并提出了一套完整的、切实可行的三维小波压缩方案。通过实验证明,三维小波压缩技术大大优于目前PACS中最常用的二维JPEG编码和二维小波压缩技术。
Research on non noise coding m ethod serving the needs ofm edicaldiagnosis is a new field in PACS,CT and MRI scanners provided lotsof3D im ages every day. In this paper, a three dim ensionalm edicalim ages com pression m ethod based on 3D w avelettransform is proposed.The 2Dm edicalim age group isregarded as 3D im age. The authors expatiate on several questions w hich m ust be paid attention to in 3D w avelet transform , and an integrity 3Dw avelettransform coding m ethod is proposed.Theexperim entalresultshows this3Dcoding m ethod can offsetthe failure of2Dcoding m ethod in PACSperfectly.
出处
《中国图象图形学报(A辑)》
CSCD
1999年第8期635-639,共5页
Journal of Image and Graphics
关键词
PACS
三维
小波变换
图象压缩
频率带
医学图象
Picture Archiving and Com m unication System , 3D wavelet transform , Im age com pression, Frequency subband, Bestbite allocation