Fast Compressed Sensing MRI Based on Complex Double-Density Dual-Tree Discrete Wavelet Transform
Joint Authors
Qiu, Bensheng
Chen, Shanshan
Zhao, Feng
Li, Chao
Du, Hongwei
Source
International Journal of Biomedical Imaging
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-09
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Compressed sensing (CS) has been applied to accelerate magnetic resonance imaging (MRI) for many years.
Due to the lack of translation invariance of the wavelet basis, undersampled MRI reconstruction based on discrete wavelet transform may result in serious artifacts.
In this paper, we propose a CS-based reconstruction scheme, which combines complex double-density dual-tree discrete wavelet transform (CDDDT-DWT) with fast iterative shrinkage/soft thresholding algorithm (FISTA) to efficiently reduce such visual artifacts.
The CDDDT-DWT has the characteristics of shift invariance, high degree, and a good directional selectivity.
In addition, FISTA has an excellent convergence rate, and the design of FISTA is simple.
Compared with conventional CS-based reconstruction methods, the experimental results demonstrate that this novel approach achieves higher peak signal-to-noise ratio (PSNR), larger signal-to-noise ratio (SNR), better structural similarity index (SSIM), and lower relative error.
American Psychological Association (APA)
Chen, Shanshan& Qiu, Bensheng& Zhao, Feng& Li, Chao& Du, Hongwei. 2017. Fast Compressed Sensing MRI Based on Complex Double-Density Dual-Tree Discrete Wavelet Transform. International Journal of Biomedical Imaging،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1159721
Modern Language Association (MLA)
Chen, Shanshan…[et al.]. Fast Compressed Sensing MRI Based on Complex Double-Density Dual-Tree Discrete Wavelet Transform. International Journal of Biomedical Imaging No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1159721
American Medical Association (AMA)
Chen, Shanshan& Qiu, Bensheng& Zhao, Feng& Li, Chao& Du, Hongwei. Fast Compressed Sensing MRI Based on Complex Double-Density Dual-Tree Discrete Wavelet Transform. International Journal of Biomedical Imaging. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1159721
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1159721