A Wavelet Based Sparse Row-Action Method for Image Reconstruction in Magnetic Particle Imaging
A Wavelet Based Sparse Row-Action Method for Image Reconstruction in Magnetic Particle Imaging
复制标题
磁粒子成像中基于小波的稀疏行作用图像重建方法
DOI：
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复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
T. Knopp
中科院分区：
文献类型：
--
作者：
F. Lieb;T. Knopp
目的
PURPOSE
Magnetic Particle Imaging (MPI) is a preclinical imaging technique capable of visualizing the spatio-temporal distribution of magnetic nanoparticles. The image reconstruction of this fast and dynamic process relies on efficiently solving an ill-posed inverse problem. Current approaches to reconstruct the tracer concentration from its measurements are either adapted to image characteristics of MPI but suffer from higher computational complexity and slower convergence or are fast but lack in the image quality of the reconstructed images.
METHODS
In this work we propose a novel MPI reconstruction method to combine the advantages of both approaches into a single algorithm. The underlying sparsity prior is based on an undecimated wavelet transform and is integrated into a fast row-action framework to solve the corresponding MPI minimization problem.
RESULTS
Its performance is numerically evaluated against a classical FISTA (Fast It-erative Shrinkage-Thresholding Algorithm) approach on simulated and real MPI data. The experimental results show that the proposed method increases image quality at significantly reduced computation times.
CONCLUSIONS
In comparison to state-of-the-art MPI reconstruction methods, our approach shows better reconstruction results and at the same time accelerates the convergence rate of the underlying row-action algorithm.
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影响因子：
17.1
作者：
Tay ZW;Chandrasekharan P;Chiu-Lam A;Hensley DW;Dhavalikar R;Zhou XY;Yu EY;Goodwill PW;Zheng B;Rinaldi C;Conolly SM
通讯作者：
Conolly SM
影响因子：
10.8
作者：
Yu EY;Bishop M;Zheng B;Ferguson RM;Khandhar AP;Kemp SJ;Krishnan KM;Goodwill PW;Conolly SM
通讯作者：
Conolly SM
影响因子：
3.5
作者：
von Gladiss, A.;Graeser, M.;Buzug, T. M.
通讯作者：
Buzug, T. M.
DOI：
10.1137/130936269
发表时间：
2013-09
期刊：
SIAM J. Imaging Sci.
影响因子：
--
作者：
D. Lorenz;F. Schöpfer;S. Wenger
通讯作者：
D. Lorenz;F. Schöpfer;S. Wenger
影响因子：
10.6
作者：
M. Storath;C. Brandt;M. Hofmann;T. Knopp;J. Salamon;A. Weber;A. Weinmann
通讯作者：
M. Storath;C. Brandt;M. Hofmann;T. Knopp;J. Salamon;A. Weber;A. Weinmann