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磁共振截断频谱信号重建的奇异谱分析法

骆建华 楼正国

骆建华, 楼正国. 磁共振截断频谱信号重建的奇异谱分析法[J]. 电子与信息学报, 1999, 21(3): 397-403.
引用本文: 骆建华, 楼正国. 磁共振截断频谱信号重建的奇异谱分析法[J]. 电子与信息学报, 1999, 21(3): 397-403.
Luo Jianhua, Lou Zhengguo. SIGNAL RECONSTRUCTION FROM MR TRUNCATED DATA USING SINGULARITY SPECTRUM ANALYSIS[J]. Journal of Electronics & Information Technology, 1999, 21(3): 397-403.
Citation: Luo Jianhua, Lou Zhengguo. SIGNAL RECONSTRUCTION FROM MR TRUNCATED DATA USING SINGULARITY SPECTRUM ANALYSIS[J]. Journal of Electronics & Information Technology, 1999, 21(3): 397-403.

磁共振截断频谱信号重建的奇异谱分析法

SIGNAL RECONSTRUCTION FROM MR TRUNCATED DATA USING SINGULARITY SPECTRUM ANALYSIS

  • 摘要: 本文提出一种消除磁共振(MR)图像截断伪影的新方法。在我们的方法中,把任何信号频谱表示为由信号奇异点为参量的频谱函数的加权和,奇异点和加权系数从截断频谱数据中提取,从而准确恢复MR截断频谱的高频分量,达到MR消除截断伪影之目的。实际和模拟结果都表明这种方法效果高于现有方法。
  • Stack D D, et al. Magnetic resonance and compute tomography of the normal and diseased pancreas: A compare active study. Radiology, 1984, 70(6): 153-162.[2]Jones J P, et al. Principles of Magnetic Resonance. In Magnetic Resonance Annual, 1985, Ed. by Y. K. Herbert, Raven Press, Switzerland: 1985, 71-111.[3]Hui Y, Smith M R. MRI reconstruction from truncated sata using a complex domain back prop-[4]agation neural network. IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing-Proceedings, IEEE, Piscataway, NJ, U.S.A: 1995, 95CH35765, 513-516.[5]Yan Hong, Mao Jintong. Data truncation artifact reduction in MR imaging using a multilayer neural network. IEEE Trans. on Medical Imaging, 1993, MI-12(I): 73-77.[6]Sebastiani G, Barone P. Truncation artifact reduction in magnetic resonance imaging by Markov random field methods. IEEE Trans. on Medical Imaging, 1995, MI-14(3): 434-441.[7]Kok C W, Hui Y, Nguyen T (a. MRI truncation artifact reduction via wavelet shrinkage. IEE SPIE--The International Society for Optical Engineering, 1997, 3078: 301-311.[7] 崔锦泰著,程正兴译.小波分析导论.西安:西安交通大学出版社,1995, 297-333.[8]Mallat S G, Wen Liang Hwang. Singularity detection and processing with wavelet. IEEE Trans. on Information Theory, 1992, IT-38(2): 617-643.[9]骆建华,吕维雪.模糊多准则图像重建技术.计算机学报,1996, 19(8): 609-615.
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出版历程
  • 收稿日期:  1998-04-03
  • 修回日期:  1998-11-16
  • 刊出日期:  1999-05-19

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