高刺激率条件下利用非局部平均算法提高听觉诱发电位信噪比
Jan 1, 2014·,,,·
1 min read
张爱桃
李连捷
王涛
林霖
Image credit: UnsplashAbstract
目的利用非局部平均(NL-means)算法提高高刺激率模式下去卷积前的听觉诱发电位(AEPs)的信噪比.方法首先通过仿真实验来确定在不同噪声水平下的滤波参数,然后采用真实数据进行了验证,并且与均值滤波进行了对比.结果 NL-means方法能够有效的抑制粉红噪声,较好的保留信号的细节.结论 NL-means方法非常适合具有周期特性的信号去噪,能够有效的去除噪声,提高AEPs信噪比.
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Publication
航天医学与医学工程, 27(1)
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