利用多分辨率分析的胸部X线数字图像粗糙集滤波增强  

THE FILTERING METHOD FOR X-RAY DIGITAL IMAGE OF CHEST BASED ON MULTI-RESOLUTION AND ROUGH SET

作　　者：陈真诚[1] 张锋[1] 蒋大宗[1] 倪利莉[2] 王红艳[2] 

机构地区：[1]西安交通大学生物医学工程研究所,西安710049 [2]中国人民解放军第五三三医院,昆明650024

出　　处：《中国生物医学工程学报》2004年第6期486-489,485,共5页Chinese Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目 (3 963 0 110 ) ;国家重点科技攻关项目资助项目 (96-92 0 -12 -0 1)

摘　　要：研究采用一种分辨率分析的胸部X线双能量分离数字图像 ,实现粗糙集滤波增强的新算法。该方法在用多分辨率分析处理图像的基础上 ,根据粗糙集理论的条件属性 ,将每个尺度获得的图像均采用粗糙集处理算法划分为不同的子图像 ,然后对各个子图像分别作区域滤波和对比度增强处理 ,最后合成一幅高清晰度的新图像。从结果中可看出 ,采用这种方法处理后得到的图像效果较为理想 ,能给临床上的医学工作者提供较清晰的图像 ,同时也为后续的计算机辅助诊断提供有效的依据。A new method for filtering of X - ray digital image of chest based on multi - resolution and rough set was developed in this paper. A pulmonary image gained by arithmetic of X - ray dual energy was classified into different sub - image block with rough set based on multi - scale image processing. Each sub - image was then treated with enhancement and filtering. As a result, the image processed by rough set has good details and its contrast has been improved. This method can not only provide images of fine resolution for clinical practice, but also provide more information for computer - aided diagnosis.

关 键 词：胸部X线图像 多分辨率分析 图像增强 粗糙集理论 

分 类 号：R319[医药卫生—基础医学]