Highly undersampled Magnetic Resonance Image reconstruction using two-level Bregman method with dictionary updating
文献类型：期刊论文
| 作者 | Qiegen Liu; Shanshan Wang; Kun Yang; Jianhua Luo; Yuemin Zhu; and Dong Liang |
| 刊名 | IEEE TRANSACTIONS ON MEDICAL IMAGING
 |
| 出版日期 | 2013 |
| 英文摘要 | In recent years Bregman iterative method (or related augmented Lagrangian method) has shown to be an efficient optimization technique for various inverse problems. In this paper, we propose a two-level Bregman Method with dictionary updating for highly undersampled magnetic resonance (MR) image reconstruction. The outer-level Bregman iterative procedure enforces the sampled k-space data constraints, while the inner-level Bregman method devotes to updating dictionary and sparse representation of small overlapping image patches, emphasizing local structure adaptively. Modified sparse coding stage and simple dictionary updating stage applied in the inner minimization make the whole algorithm converge in a relatively small number of iterations, and enable accurate MR image reconstruction from highly undersampled k-space data. Experimental results on both simulated MR images and real MR data consistently demonstrate that the proposed algorithm can efficiently reconstruct MR images and present advantages over the current state-of-the-art reconstruction approach. |
| 收录类别 | SCI |
| 原文出处 | http://ieeexplore.ieee.org/xpl/abstractAuthors.jsp?arnumber=6492252&tag=1 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/4754]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | IEEE TRANSACTIONS ON MEDICAL IMAGING |
| 推荐引用方式 GB/T 7714 | Qiegen Liu,Shanshan Wang,Kun Yang,et al. Highly undersampled Magnetic Resonance Image reconstruction using two-level Bregman method with dictionary updating[J]. IEEE TRANSACTIONS ON MEDICAL IMAGING,2013. |
| APA | Qiegen Liu,Shanshan Wang,Kun Yang,Jianhua Luo,Yuemin Zhu,&and Dong Liang.(2013).Highly undersampled Magnetic Resonance Image reconstruction using two-level Bregman method with dictionary updating.IEEE TRANSACTIONS ON MEDICAL IMAGING. |
| MLA | Qiegen Liu,et al."Highly undersampled Magnetic Resonance Image reconstruction using two-level Bregman method with dictionary updating".IEEE TRANSACTIONS ON MEDICAL IMAGING (2013). |
入库方式： OAI收割
来源：深圳先进技术研究院
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