屈小波的个人博客分享 http://blog.sciencenet.cn/u/quxiaobo


  • 厦门大学,教授

    • 信息科学->电子学与信息系统->信号理论与信号处理

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实验室网站
屈小波的个人主页:
https://csrc.xmu.edu.cn/index_cn/xiaobo/index_cn.html
计算成像小组:
http://csrc.xmu.edu.cn
MRI 实验室(厦大):
http://210.34.23.14/nmr/about.asp
MRI 实验室(UIUC):
http://mri.beckman.uiuc.edu/
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quxiaobo 2015-5-17 11:20
把代数形式化成计算过程,与DFT矩阵编程FFT的正向和反向变换类似。主要是针对高维信号处理矩阵编程规模太大。
hzy123 2015-5-7 14:32
屈老师,你好,我现在在研究你的那篇基于contourlet变换的MRI的IST算法重构的文章。有几处不懂,比如:res=class(res,'wavelet_mdwt'),为什么要用类?而不用contourlet工具箱呢? 非常希望大神能给我指导一下,万分感谢!!
bizizoule 2014-10-30 19:22
屈老师您好,能不能给我说说K空间采样矩阵的设计,在网上找也没有详细说明的,就给出一个个图形,比如说一维随机下采样、二维随机下采样、螺旋线采样和放射线采样等。
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共享代码
Sparse representation
Patch-based nonlocal operator (PANO) and its parallel computing version.
Patch-based directional wavelets (PBDW) and its windows 64bit version.
Patch-Based Directional Wavelets in 2D Shift-invariant wavelet domain (PBDWS)
Operator for contourlet transform

Compressed sensing MRI and NMR
Magnetic resonance image reconstruction from undersampled measurements using a patch-based nonlocal operator
Undersampled MRI reconstruction with patch-based directional wavelets
Magnetic resonance image reconstruction using trained geometric directions in 2D redundant wavelets domain and non-convex optimization
Image reconstruction of compressed sensing MRI using graph-based redundant wavelet transform
Balanced sparse/analysis sparse/synthesis sparse models for tight frames in compressed sensing magnetic resonance imaging
Self-sparse NMR spectra wit ...

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