中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (13): 2361-2364.doi: 10.3969/j.issn.1673-8225.2010.13.021

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

医学图像的零树小波编码

王世刚1，游敏娟2   

  1. 1泰山医学院放射学院，山东省泰安市  271016；2山东医药技师学院信息中心，山东省泰安市     271016
  • 出版日期:2010-03-26 发布日期:2010-03-26
  • 作者简介:王世刚★，男，1977年生，山东省陵县人，汉族，2007年泰山医学院毕业，硕士，讲师，主要从事医学图像处理方面的研究。 fsxywsg@163.com

Encoding medical image based on embedded zero-tree wavelet

Wang Shi-gang1, You Min-juan2   

  1. 1 College of Radiology, Taishan Medical University, Taian   271016, Shandong Province, China; 2 Information Center of Shandong Medical Technician College, Taian   271016, Shandong Province, China
  • Online:2010-03-26 Published:2010-03-26
  • About author:Wang Shi-gang★, Master, Lecturer, College of Radiology, Taishan Medical University, Taian 271016, Shandong Province, China fsxywsg@163.com

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摘要：

背景：医学数字图像必须是高质量的、高分辨率，所以数据量很大，如此巨大的数据量不利于图像存档与传输系统的运行和数字化医院、远程医疗的实现。因此，图像压缩成为图像存档与传输系统要解决的重要问题。
目的：分析零树小波变编码算法原理并编程实现对医学数字图像的压缩，使之能够满足医学图像的传输和诊断要求。
方法：应用嵌入式零树小波编码算法，探讨小波基和小波变换层数的选择，编程实现对医学数字图像的压缩。
结果与结论：选择双正交小波基对医学图像进行4层小波变换实现压缩，获得了较高的峰值信噪比，取得了较好的压缩效果。

关键词: 小波变换, 图像压缩, 嵌入式零树小波, 医学数字图像, 数字化医学

Abstract:

BACKGROUND: Medical digital image must be a high-quality, high resolution, large amounts of data. Such an enormous amount of data is not conducive to the operation of Picture Achieving and Communication System (PACS) and digital hospital, telemedicine implementation. Therefore, image compression becomes an important issue to PACS.
OBJECTIVE: To analyze the zero-tree wavelet coding algorithm and program for the medical digital image compression, to enable it to meet the medical image transmission and diagnostic requirements.
METHODS: Using embedded zero-tree wavelet coding algorithm, wavelets and the layers of wavelet transform were presented, and the medical digital image compression was achieved.
RESULTS AND CONCLUSION: Choosing pairs of orthogonal wavelets for medical image compression four-layer wavelet transform obtained a higher PSNR, and achieved good compression.

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