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。
This paper describes still medical image ,zompression, 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-paint DSP to perform wavelet transform arithmetic and image encoding. The proposed technique aims at reducing the transmission cost while pxeserving 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.
出处
《计算机工程》
CAS
CSCD
北大核心
2007年第8期213-215,共3页
Computer Engineering
