![](/images/graphics-bg.png)
A Dictionary Learning Method with Total Generalized Variation for MRI Reconstruction
Joint Authors
Wang, Yuhao
Liu, Qiegen
Wei, Jingbo
Lu, Hongyang
Deng, Xiaohua
Source
International Journal of Biomedical Imaging
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-15
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Reconstructing images from their noisy and incomplete measurements is always a challenge especially for medical MR image with important details and features.
This work proposes a novel dictionary learning model that integrates two sparse regularization methods: the total generalized variation (TGV) approach and adaptive dictionary learning (DL).
In the proposed method, the TGV selectively regularizes different image regions at different levels to avoid oil painting artifacts largely.
At the same time, the dictionary learning adaptively represents the image features sparsely and effectively recovers details of images.
The proposed model is solved by variable splitting technique and the alternating direction method of multiplier.
Extensive simulation experimental results demonstrate that the proposed method consistently recovers MR images efficiently and outperforms the current state-of-the-art approaches in terms of higher PSNR and lower HFEN values.
American Psychological Association (APA)
Lu, Hongyang& Wei, Jingbo& Liu, Qiegen& Wang, Yuhao& Deng, Xiaohua. 2016. A Dictionary Learning Method with Total Generalized Variation for MRI Reconstruction. International Journal of Biomedical Imaging،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1105429
Modern Language Association (MLA)
Lu, Hongyang…[et al.]. A Dictionary Learning Method with Total Generalized Variation for MRI Reconstruction. International Journal of Biomedical Imaging No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1105429
American Medical Association (AMA)
Lu, Hongyang& Wei, Jingbo& Liu, Qiegen& Wang, Yuhao& Deng, Xiaohua. A Dictionary Learning Method with Total Generalized Variation for MRI Reconstruction. International Journal of Biomedical Imaging. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1105429
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1105429