| 一种基于第二代小波变换的图像压缩方案 |
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| 引用本文： | 胡学龙,陆峰. 一种基于第二代小波变换的图像压缩方案[J]. 电子测量与仪器学报, 2003, 17(4): 37-42 |
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| 作者姓名： | 胡学龙 陆峰 |
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| 作者单位： | 1. 扬州大学信息工程学院电子与通信工程系,扬州,225009;苏州大学江苏省计算机信息处理技术重点实验室,苏州,215006
2. 扬州大学信息工程学院电子与通信工程系,扬州,225009 |
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| 基金项目： | 江苏省计算机信息处理技术重点实验室开放课题 (KJS0 1 0 2 3 ),扬州大学科研基金 (F0 0 1 1 1 1 9、U0 2 1 1 0 97)的资助 |
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| 摘 要： | 本文提出了一种基于第二代小波变换与SPIHT算法、自适应算术编码相结合在图像压缩中的编／解码方案,对CDF(2,2)和FBI 9-7小波压缩的性能进行了分析和比较,获得了良好的无损或近无损压缩效果。研究结果表明这一方法充分利用了医学图像的统计特征,对于医学图像具有较高的无损压缩率,压缩的空间和时间复杂度低,利用质量递进手段可以获得满意的压缩比和PSNR,达到视觉无损、数据近无损的目的。对于典型的医学图像(X线图像、CT图像、MRI图像等)的存储、传输和检索等应用,本方案是十分有效的。
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| 关 键 词： | 第二代小波变换 无损压缩 近无损压缩 医学图像 图像压缩 SPIHT算法 自适应算术编码 PACS系统 |
| 修稿时间： | 2003-04-01 |
An Image Compression System Based on Second Generation Wavelet Transformation |
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| Hu xie long Lu Feng. An Image Compression System Based on Second Generation Wavelet Transformation[J]. Journal of Electronic Measurement and Instrument, 2003, 17(4): 37-42 |
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| Authors: | Hu xie long Lu Feng |
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| Abstract: | In this paper we present a image encode/decode compression system that combines the second generation wavelet transformation (SGWT), SPIHT(Set Partitioning in Hierarchical Trees) algorithm and adaptive arithmetic coding scheme. Based on analyzing and comparing the constringent performance CDF(2,2) and FBI9-7 wavelet, this system has a better effect in lossless and near lossy compression. The experimental results show that this method fully make use of the medical image statistical properties and achieve higher compression ratio and lower space and time complexity. Using progressive transmission will obtain the appointed compression ratio and PSNR, lossless in vision and near-lossness in data. This system is sufficiently valid to typical medical images (such as X-ray images, CT images, MRI images) storage, transmission and archiving. |
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| Keywords: | Second generation wavelet transform lossless compression near-lossless compression medical image. |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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