摘要
本文介绍了中值滤波、曲线拟合、高通滤波、形态学处理等几种不同的去心电基线漂移算法的实现。通过对MIT/BIH数据库中36份数据的比较,发现在处理效果上,中值滤波和基于形态学的方法处理效果都比较好,形态学结果比中值滤波的结果在正方向上略有偏移。高通滤波的方法对平整的S-T段的抬升很明显,而曲线拟合在处理较大的漂移时,效果就不明显了。
The paper introduce the implement of several kinds of arithmetic to take base-line excursion from ECG signal, including median filtering, curve fitting, high pass filtering and morphologic process. After comparing the processing result of 36 shares of MIT/BIH ECG data, we found that median filtering and morphologic process is better than else, the morphologic process has a little offset in positive direction comparing with median filtering; high pass filtering is obvious in raising smooth S-T seglnent; The result is tmobvious when processing high base-line excursion using curve fitting.
出处
《中国医疗器械信息》
2008年第6期30-33,共4页
China Medical Device Information
基金
南京市政府科技计划项目(项目编号:200701032)
关键词
心电
基线漂移
ECG, Base-line Excursion
