作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2007, Vol. 33 ›› Issue (08): 213-215. doi: 10.3969/j.issn.1000-3428.2007.08.075

• 多媒体技术及应用 • 上一篇    下一篇

基于JPEG2000的静态医学图像压缩设计方案

卫俊霞,焦国华,高晓惠   

  1. (中科院西安光学精密机械研究所,西安 710068)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-04-20 发布日期:2007-04-20

Design of Still Medical Image Compression Based on JPEG2000

WEI Junxia, JIAO Guohua, GAO Xiaohui   

  1. (Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-04-20 Published:2007-04-20

摘要: 针对静态医学图像压缩,介绍了两种压缩标准JPEG与JPEG2000,通过对它们的比较,突出JPEG2000的优势,诠释了JPEG2000的基本结构与编码、解码技术,描述了基于DSP的图像压缩设计方案。系统采用CCD采集数字图像,用16位定点DSP进行小波压缩,主要为了减小传输费用,试验结果表明JPEG2000对图像重现与压缩比率效果较优。

关键词: 静态医学图, JPEG, JPEG2000, DSP, CCD, 小波压缩

Abstract: This paper describes still medical image compression, introduces two image compression standards, JPEG and JPEG2000. By comparing the two standards, JPEG2000 is superior to JPEG. The modern technology, namely JPEG2000 is presented. The JPEG2000 basic configuration and the encoding and decoding technique are given. A design of image compression based on DSP is described. The system uses CCD for getting digital image, and adopts a sixteen-bit fix-point DSP to perform wavelet transform arithmetic and image encoding. The proposed technique aims at reducing the transmission cost while preserving the diagnostic integrity. The experimental results indicate that using JPEG2000 standard can ensure an optimal trade-off between the image reconstruction quality and the compression ratio.

Key words: Static medicine image, JPEG, JPEG2000, DSP, CCD, Wavelet compression

中图分类号: