摘要
探索心电信号的有效标定方法。利用小波变换良好的时频聚焦性和多孔算法的时不变性,并结合时域的标定参考信息,实现对ECG的准确标定。结果表明在Matlab6.5仿真环境下,对MIT/BIH心电数据库中的数据进行测试,准确率可达99.5%,并且满足CSEworkingParty提出的心电检测误差标准。在波形失真较小情况下,用该法可实现对ECG的自动标定。
To find an effective demarcation method for electrocardiogram.The electrocardiogram was demarcated precisely by using the outstanding time-frequency focusing characteristics of wavelet transform,the time invariability of the à trous algorithm and the reference information from manual demarcation.Result showed that using the electrocardiogram from MIT/BIH database to test the proposed method,the correct demarcating rate was about 99.5% and the error was within the reference standard by CSE working Party.The proposed method is feasible in automatic ECG demarcation.
出处
《生物医学工程研究》
2006年第3期147-150,共4页
Journal Of Biomedical Engineering Research
关键词
小波变换
多孔算法
ECG
特征检测
自动标定
CSE参考标准
Wavelet transform
à trous algorithm
ECG.
Characteristic detection
Automatic demarcation
CSE reference standard
