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医学数字化CT图像压缩效果的统计分析与评价
引用本文:郭秀花,张慧利,李永忠,李坤成,孙延奎.医学数字化CT图像压缩效果的统计分析与评价[J].数理统计与管理,2007,26(5):936-940.
作者姓名:郭秀花  张慧利  李永忠  李坤成  孙延奎
作者单位:1. 首都医科大学公共卫生与家庭医学学院,北京,100069
2. 首都医科大学附属宣武医院放射科,北京,100053
3. 清华大学计算机科学与技术系,北京,100084
基金项目:北京市教委科研项目;国家自然科学基金
摘    要:为探讨医学数字化CT图像的压缩效果,选取具有重要临床意义的肺部CT数字化图像2186张,基于小波变换进行无视觉损失压缩,对压缩效果进行统计分析与评价。经肺部影像学专家肉眼进行盲法评判,压缩后与病理诊断结果符合率为91.89(95%C I为:79%-98%),压缩前后综合评分差别无统计学意义。小波变换较好地实现了对肺部患者数字化CT图像的无视觉损失压缩。

关 键 词:小波变换  图像压缩  CT图像
文章编号:1002-1566(2007)05-0936-05
修稿时间:2006-12-15

Statistical Analysis and Evaluation on Compression Effect of Medical Digital CT Image
GUO Xiu-hua,ZHANG Hui-li,LI Yong-zhong,LI Kun-cheng,SUN Yan-kui.Statistical Analysis and Evaluation on Compression Effect of Medical Digital CT Image[J].Application of Statistics and Management,2007,26(5):936-940.
Authors:GUO Xiu-hua  ZHANG Hui-li  LI Yong-zhong  LI Kun-cheng  SUN Yan-kui
Institution:1. School of Public Health and Family Medicine, Capital Medical University, Beijing 100069, China; 2. Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; 3. Department of computer science and technology, Tsinghua University, Beijing 100084, China
Abstract:To explore effect of compression on digital CT images,2186 digital CT images were compressed with high compression ratio and low information lossless,based on the new arithmetic of wavelet analysis.The blind method judgment with naked eye conducted by the lung image experts showed that the results of clinic diagnose carried on before and after compressions were nearly the same and have no statistical significance.Arithmetic of wavelet analysis can be used for the lossless compression on digital CT image of lung patients.
Keywords:wavelet transform  image compression  CT image
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