期刊文献+

基于二进小波变换的磁共振图像增强算法应用研究

MRI enhancement algorithm based on dyadic wavelet transform
下载PDF
导出
摘要 在结合磁共振图像特点的基础上对二进小波变换的图像增强方法进行研究和改进,并应用到磁共振图像的对比度增强实验中。实验结果表明,改进后的算法比原算法有更好的增强效果,在增强对比度和抑制噪声两方面都取得了较好的效果。 According to the characteristics of MRI,an algorihm based on the dyadic wavelet trnsform for the image enhancement is researched and modified and used in the experiment of the enhancement of MRI.The experiments on the clinical images show that the modified algorithm has a better result compared with the original algorithm.The algorithm can achieve an excellent balance between the enhancement of subtle image detail and the avoid of noise amplification.
作者 张丽琴 程科
机构地区 江苏科技大学
出处 《信息技术》 2011年第4期143-145,共3页 Information Technology
关键词 二进小波 磁共振图像 图像增强 dyadic wavelet transform MRI(magnetic resonance imaging) image enhancement
  • 相关文献

参考文献3

二级参考文献9

  • 1陈武凡.小波分析及其在图像处理中的应用.北京[M]:科学出版社,2003.
  • 2Shie Qian. Introduction to Time-Frequency and Wavelet Transforms[M].北京:机械工业出版社,2005.
  • 3Ashish Khare, Uma Shanker Tiwary. New Method for Deblurring and Denoising of Medical Images using Complex Wavelet Transform [ C ]. Proceedings of the 2005 IEEE, Engineering in Medicine and Biology 27th Annual Conference,2005:1897- 1900.
  • 4Mallat SG. A theory for multiresoluiion signal decomposition:The wavelet representation [ J ]. EEE Transactions on Pattern Analysis and Machine Intelligence, 1989,11 (7) :674 - 693.
  • 5Donoho DL. Denoising by Soft-thresholding [J ]. IEEE Trans on IT, 1995,41 (3) :613 -627.
  • 6Rafacel C Gonzalez,Richard E Woods 著,阮秋琦等译.数字图像处理(第二版)[M].北京:电子工业出版社,2003.
  • 7Sendurl L,Selesnick I W.A Bivariate Shrinkage Function for Wavelet Based Denoising[C].IEEE ICASSP,2002.
  • 8Lei Zhang,Paul Bao.Edge Detection by Scale Multiplication in Wavelet Domain[J].Pattern Recognition Letters,2002,23:1771~1784.
  • 9Zong X,Laine A.F,Geiser E.A.etal.De-noising and contrast enhancement via wavelet shrinkage and non-linear adaptive gain[C].Wavelet Applications 3:Proceeding of SPIE,Orlando,1996,566~574.

共引文献8

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部