The Empirical Effect of Gaussian Noise in Undersampled MRI Reconstruction

arXiv: Computer Vision and Pattern Recognition, Volume 3, Issue 4, 2017, Pages 211-221.

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Keywords:
MRIcompressed sensingimage reconstructionnoise analysisundersampling

Abstract:

In Fourier-based medical imaging, sampling below the Nyquist rate results in an underdetermined system, in which linear reconstructions will exhibit artifacts. Another consequence of under-sampling is lower signal to noise ratio (SNR) due to fewer acquired measurements. Even if an oracle provided the information to perfectly disambiguate ...More

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