Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging
Joint Authors
Source
Advances in Mathematical Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Magnetic particle imaging (MPI) is a quantitative method for determining the spatial distribution of magnetic nanoparticles, which can be used as tracers for cardiovascular imaging.
For reconstructing a spatial map of the particle distribution, the system matrix describing the magnetic particle imaging equation has to be known.
Due to the complex dynamic behavior of the magnetic particles, the system matrix is commonly measured in a calibration procedure.
In order to speed up the reconstruction process, recently, a matrix compression technique has been proposed that makes use of a basis transformation in order to compress the MPI system matrix.
By thresholding the resulting matrix and storing the remaining entries in compressed row storage format, only a fraction of the data has to be processed when reconstructing the particle distribution.
In the present work, it is shown that the image quality of the algorithm can be considerably improved by using a local threshold for each matrix row instead of a global threshold for the entire system matrix.
American Psychological Association (APA)
Knopp, T.& Weber, A.. 2015. Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging. Advances in Mathematical Physics،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1052978
Modern Language Association (MLA)
Knopp, T.& Weber, A.. Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging. Advances in Mathematical Physics No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1052978
American Medical Association (AMA)
Knopp, T.& Weber, A.. Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging. Advances in Mathematical Physics. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1052978
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052978