小波变换与形态学运算相结合的脉搏波检测算法  

Pulse wave detection algorithm based on wavelet transform and morphology

作　　者：张彬[1] 张业宏[1] 李明彩[1] 

机构地区：[1]新乡医学院生命科学技术系医学信息与图像教研室,新乡453003

出　　处：《电子测量技术》2011年第6期23-25,63,共4页Electronic Measurement Technology

摘　　要：提出了1种基于小波变换模极大值与形态学运算相结合的脉搏波检测算法。该算法采用Symlet小波的Mallat算法对脉搏信号作多分辨率分解,利用数学形态学运算突出信号的峰谷点特征,将小波变换模极大值检测原理与形态学峰谷检测算法相结合,实现了对脉搏波的准确检测和精确定位。A new algorithm for detecting pulse wave was proposed on the basis of wavelet transform and morphological operation.Mallat algorithm based on dyadic Symlet wavelet transform was used to multi-resolution analysis on the signal,and mathematical morphology operation was used to clarify the signal＇s peaks and valleys.Test results showed that the detection method not only can detect accurately and localize precisely to the peaks and valleys of the signal,but also can achieve the real-time detection.

关 键 词：模极大值 形态学 小波变换 脉搏波 

分 类 号：R318.04[医药卫生—生物医学工程]