基于数学形态学的QRS波差位波峰提取方法  

Deviation extraction of peak algorithm for QRS complex based on mathematical morphology

作　　者：郑唯琴[1] 陈杭[1] 叶树明[1] 

机构地区：[1]浙江大学生物医学工程与仪器科学学院,生物医学工程教育部重点实验室,杭州310027

出　　处：《计算机工程与应用》2010年第31期127-129,共3页Computer Engineering and Applications

基　　金：国家“十一五”科技支撑计划No.N20080460;浙江省科技项目No.G20070180~~

摘　　要：基于数学形态学和波峰波谷提取算法,提出了差位波峰提取算法(PDE算法)。先对原始信号通过开和闭运算、延时、相减和相加提取高幅值波峰波谷,通过绝对值和移动窗口整合运算处理获得高幅值的波峰和抑制高频噪声。经MIT-BIH数据库评估,QRS波检测的灵敏度达99.85%,特异性达99.84%。Based on mathematical morphology and the extraction of peaks and troughs algorithm,the deviation extraction of peak algorithm（PDE algorithm） is proposed.The original signals are processed by opening and closing operation, delay processing,the subtracter,the adder and moving-window integration.Then the high-amplitude peaks are extracted and the high-frequency noises are suppressed.Evaluated on the MIT-BIH arrhythmia database,the sensitivity of QRS is 99.85%,and the speci-ficity is 99.84%.

关 键 词：数学形态学 差位波峰提取算法 QRS波 高频噪声 

分 类 号：R318.11[医药卫生—生物医学工程]