利用子空间投影的部分傅立叶重构

2013 Fourth National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG) Pub Date : 2013-12-01 DOI:10.1109/NCVPRIPG.2013.6776211

K. Uma, C. Kesavadas, J. S. Paul

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引用次数: 0

摘要

通过部分k空间重建可以减少MRI扫描时间。截断k空间会在重建图像中产生伪影。提出了一种用于稀疏核磁共振图像无伪影重建的子空间投影算法。该算法应用于频率加权k空间，适合稀疏MR图像的信号空间模型。应用磁共振血管造影(MRA)说明。

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Partial Fourier reconstruction using subspace projection

Scan time reduction in MRI can be achieved by partial k-space reconstruction. Truncation of the k-space results in generation of artifacts in the reconstructed image. A subspace projection algorithm is developed for artifact-free reconstruction of sparse MRI. The algorithm is applied to a frequency weighted k-space, which fits into a signal-space model for sparse MR images. The application is illustrated using Magnetic Resonance Angiogram (MRA).

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2013 Fourth National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG)

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