Pitfalls in compressed sensing reconstruction and how to avoid them
Pitfalls in compressed sensing reconstruction and how to avoid them
Abstract
Multidimensional NMR can provide unmatched spectral resolution, which is crucial when dealing with samples of biological macromolecules. The resolution, however, comes at the high price of long experimental time. Non-uniform sampling (NUS) of the evolution time domain allows to suppress this limitation by sampling only a small fraction of the data, but requires sophisticated algorithms to reconstruct omitted data points. A significant group of such algorithms known as...
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11-19-2016 08:35 PM
Improving resolution in multidimensional NMR using random quadrature detection with compressed sensing reconstruction
Improving resolution in multidimensional NMR using random quadrature detection with compressed sensing reconstruction
Abstract
NMR spectroscopy is central to atomic resolution studies in biology and chemistry. Key to this approach are multidimensional experiments. Obtaining such experiments with sufficient resolution, however, is a slow process, in part since each time increment in every indirect dimension needs to be recorded twice, in quadrature. We introduce a modified compressed sensing (CS) algorithm enabling reconstruction of data acquired with...
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09-22-2016 06:26 AM
[NMR paper] Bayesian reconstruction of projection reconstruction NMR (PR-NMR).
Bayesian reconstruction of projection reconstruction NMR (PR-NMR).
Related Articles Bayesian reconstruction of projection reconstruction NMR (PR-NMR).
Comput Biol Med. 2014 Aug 24;54C:89-99
Authors: Yoon JW
Abstract
Projection reconstruction nuclear magnetic resonance (PR-NMR) is a technique for generating multidimensional NMR spectra. A small number of projections from lower-dimensional NMR spectra are used to reconstruct the multidimensional NMR spectra. In our previous work , it was shown that multidimensional NMR spectra are...
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09-15-2014 07:13 PM
High speed 3D overhauser-enhanced MRI using combined b-SSFP and compressed sensing
From The DNP-NMR Blog:
High speed 3D overhauser-enhanced MRI using combined b-SSFP and compressed sensing
Sarracanie, M., et al., High speed 3D overhauser-enhanced MRI using combined b-SSFP and compressed sensing. Magn Reson Med, 2013. 71(2): p. 735-745.
http://www.ncbi.nlm.nih.gov/pubmed/23475813
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03-24-2014 11:08 PM
[NMR paper] Sampling scheme and compressed sensing applied to solid-state NMR spectroscopy.
Sampling scheme and compressed sensing applied to solid-state NMR spectroscopy.
Related Articles Sampling scheme and compressed sensing applied to solid-state NMR spectroscopy.
J Magn Reson. 2013 Oct 1;237C:40-48
Authors: Lin EC, Opella SJ
Abstract
We describe the incorporation of non-uniform sampling (NUS) compressed sensing (CS) into oriented sample (OS) solid-state NMR for stationary aligned samples and magic angle spinning (MAS) Solid-state NMR for unoriented 'powder' samples. Both simulated and experimental results indicate that...
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10-23-2013 03:49 AM
[NMR paper] A comparison of convex and non-convex compressed sensing applied to multidimensional NMR.
A comparison of convex and non-convex compressed sensing applied to multidimensional NMR.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles A comparison of convex and non-convex compressed sensing applied to multidimensional NMR.
J Magn Reson. 2012 Oct;223:1-10
Authors: Kazimierczuk K, Orekhov VY
Abstract
The resolution of multidimensional NMR spectra can be severely limited when regular sampling based on the Nyquist-Shannon theorem is used. The...
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02-23-2013 01:51 PM
Compressed sensing reconstruction of undersampled 3D NOESY spectra: application to large membrane proteins
Compressed sensing reconstruction of undersampled 3D NOESY spectra: application to large membrane proteins
Abstract Central to structural studies of biomolecules are multidimensional experiments. These are lengthy to record due to the requirement to sample the full Nyquist grid. Time savings can be achieved through undersampling the indirectly-detected dimensions combined with non-Fourier Transform (FT) processing, provided the experimental signal-to-noise ratio is sufficient. Alternatively, resolution and signal-to-noise can be improved within a given experiment time. However, non-FT...
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07-30-2012 07:42 AM
Compressed sensing and the reconstruction of ultrafast 2D NMR data: Principles and biomolecular applications.
Compressed sensing and the reconstruction of ultrafast 2D NMR data: Principles and biomolecular applications.
Compressed sensing and the reconstruction of ultrafast 2D NMR data: Principles and biomolecular applications.
J Magn Reson. 2011 Apr;209(2):352-8
Authors: Shrot Y, Frydman L
A topic of active investigation in 2D NMR relates to the minimum number of scans required for acquiring this kind of spectra, particularly when these are dictated by sampling rather than by sensitivity considerations. Reductions in this minimum number of scans have...