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基于偏微分方程的医学磁共振图像去噪
Pde-Based MRI Image Denoising
【摘要】 本文引入了基于偏微分方程的Perona-Malik模型,并结合了Catte的高斯扩散滤波器的概念,给出了一种针对医学磁共振图像去噪的方法及其实现。文中通过给出不同参数,对结果加以比较分析。把该方法应用于医学图像去噪,得到比较令人满意的结果。
【Abstract】 A PDE-based Perona-Malik model was introduced in this paper. Combined with the idea first presental by Catteabout Gaussian diffesion filter, a method for MRI image denoising was presented with its realization. According to differentparameters given, results were compared and analyzed. The method was applied to medical images and its results wereencouraging.
【关键词】 异质扩散;
图像去噪;
MRI;
Perona-Malik模型;
【Key words】 anisotropic diffusion; image denoising; MRI; perona-malik model;
【Key words】 anisotropic diffusion; image denoising; MRI; perona-malik model;
- 【文献出处】 信号处理 ,Signal Processing , 编辑部邮箱 ,2004年03期
- 【分类号】TP391.41
- 【被引频次】13
- 【下载频次】322