磁共振波谱信号去噪新方案

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-28 DOI:10.1109/IEMBS.2001.1017197

O. A. Ahmed

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引用次数: 3

摘要

提出了一种新的磁共振波谱信号去噪方案。该方案基于在不同时频域中连续投影噪声信号，并根据噪声水平在这些域中进行噪声滤波操作。对不同噪声水平的磁共振波谱信号进行了广泛的模拟，对该方案进行了评估。结果表明，该方案能较好地补偿多余的计算需求，特别是对于非常低的信噪比信号。

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New denoising scheme for magnetic resonance spectroscopy signals

A new scheme for denoising magnetic resonance spectroscopy signals is presented. The scheme is based on projecting noisy signals on different time-frequency domains, consecutively, and performing noise filtering operations in these domains according to the noise level. The evaluation of this scheme was performed using extensive simulation of magnetic resonance spectroscopy signals with different noise levels. It was observed that this scheme gives superior results that compensate for the excess computational requirements, especially for very low signal to noise ratio signals.

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来源期刊

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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