| 基于稀疏分解法的单次诱发电位提取 |
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| 引用本文： | 傅霆,刘永健,尧德中.基于稀疏分解法的单次诱发电位提取[J].生物医学工程学杂志,2005,22(5):1036-1039. |
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| 作者姓名： | 傅霆 刘永健 尧德中 |
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| 作者单位： | 四川省交通厅公路规划设计研究院交通工程处 成都610041
(傅霆，刘永健)，电子科技大学生命科学与技术学院 成都610054(尧德中) |
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| 基金项目： | 国家自然科学基金资助项目(9020800,302000593)，教育部科学技术研究重点项目(02065)，高等学校博士学科点专项科研基金，教育部青年教师奖励计划，四川省青年基金资助项目 |
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| 摘 要： | 迭代加权稀疏分解法是按照白噪声在小波的多分辨结构中的二尺度关系来确定求最小l1模优化问题时的加权系数,并通过一个迭代过程来逐步消除强噪声的影响。通过对视觉诱发电位的单次提取的研究说明了这种方法具有良好的单次提取效果,其实验结果支持单次提取的视觉诱发电位是不相同的观点。
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| 关 键 词： | 稀疏分解 多分辨小波 最小模优化 视觉诱发电位 单次提取 |
| 收稿时间： | 2003-06-04 |
| 修稿时间： | 2003-06-042003-11-27 |
Single Visual-evoked Potential Estimation Based on Sparse Decomposition |
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| Fu Ting, Liu Yongjian,Yao Dezhong.Single Visual-evoked Potential Estimation Based on Sparse Decomposition[J].Journal of Biomedical Engineering,2005,22(5):1036-1039. |
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| Authors: | Fu Ting Liu Yongjian Yao Dezhong |
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| Institution: | Sichuan Province Communications Department Highway Planning, Survey, Design and Research Institute, Chengdu 610041, China. |
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| Abstract: | Iterative weighted sparse decomposition is a method to determine the weight coefficients of the minimum l 1 norm optimization in accord with the two-scale relationship of the white noise in the multiresolution wavelet structure and to gradually suppress the influence of the strong noises through an iteration operation. The single-trial Visual Evoked Potential(VEP) estimation results confirmed the effectiveness of the method, and thus supported the viewpoint that the results of the single VEP estimation were different. |
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| Keywords: | Sparsity decomposition Multiresolution wavelets Minimum l 1 norm optimization Visual evoked potential Single-trial estimation |
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