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Blind Source Separation Techniques Based Eye Blinks Rejection in EEG Signals

机译:基于盲源分离技术的脑电信号眨眼抑制

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In neurophysiological signal analysis, Ocular Artifacts (OA) are raised differently in Electroencephalographic (EEG). Rejection process of these artifacts is an important research area and finding a method for successful removal of OA incompletely is still a challenge. In this study, Stone blind source separation method (Stone?s BSS) is used to correct the EEG signal by separating OA signals completely, this is a new application for Stone?s BSS in brain signal analysis and there is no one use this method in this field, such that almost previous works based on Independent Component Analysis (ICA), which has some inherent disadvantages. In addition, the modified Stone?s BSS is presented here to interpret how Stone?s BSS deploys generalized Eigenvalue decomposition to obtain the un-mixing matrix based on the responses of two different linear scalar filters to the same set of signals. Therefore, this study opened a new direction field for Stone?s BSS applications. Stone?s BSS method depends on signal temporal predictability measurement for separation processes. A comparison with two well-known BSS algorithms (JADE, FICA) in order to check the Stone?s BSS effectiveness. It is an efficient method to correct the EEG data and can apply it in medical applications as expected. The main purpose of this study is to ascertain the effect of using Stone?s BSS as compared to an Independent Component Analysis (ICA) in isolating the ocular artifacts and correct the EEG data. This method is identified as being of importance in this application and it?s a new direction in the brain signal analysis.
机译:在神经生理信号分析中,脑电图(EEG)引起的人工眼(OA)有所不同。这些伪影的剔除过程是一个重要的研究领域,寻找一种不完全成功清除骨关节炎的方法仍然是一个挑战。在这项研究中,采用Stone盲源分离方法(Stone?s BSS)通过完全分离OA信号来校正EEG信号,这是Stone?s BSS在脑信号分析中的一种新应用,没有人使用此方法。在这一领域,几乎所有以前基于独立成分分析(ICA)的工作都有其固有的缺点。另外,这里展示了改进的Stone's BSS,以解释Stone's BSS如何基于两个不同的线性标量滤波器对同一组信号的响应,利用广义特征值分解来获得非混合矩阵。因此,这项研究为Stone的BSS应用打开了一个新的方向领域。 Stone的BSS方法取决于分离过程的信号时间可预测性测量。与两个著名的BSS算法(JADE,FICA)进行比较,以检查Stone的BSS有效性。这是校正EEG数据的有效方法,可以按预期将其应用于医疗应用。这项研究的主要目的是确定与独立成分分析(ICA)相比,使用Stone的BSS隔离眼部伪影和校正EEG数据的效果。该方法被认为在该应用中很重要,它是脑信号分析的新方向。

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