An ECG signal processing algorithm based on removal of wave deflections in time domain.
This paper introduces a new approach to process biomedical signals by surgically removing wave deflections in time domain. The method first determines the epochs of high frequency deflections, cuts out them from the signal, and then connects the two disconnected points. To determine the epoch of a deflection to be removed, four slope trace waves are used to isolate the deflection based on signal characteristics of amplitude, slope, duration, and distance from neighboring deflections. The method has been applied to simulated data and MIT-BIH arrhythmia database to show its practical efficacy in the case of baseline wandering removal. It is found that the method has the capability to identify and remove high frequency deflections appropriately, leaving low frequency deflection such as baseline drifting.
Kim
Jungkuk
J
Electronic Engineering Department, Myongji University, Yongin 449-728, Korea. jk.kim@mju.ac.kr
Kim
Minkyu
M
Won
Injae
I
Yang
Seungyhul
S
Lee
Kiyoung
K
Huh
Woong
W
D000465:Algorithms; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000503:physiopathology; D001698:Biomedical Engineering; D016208:Databases, Factual; D003936:Diagnosis, Computer-Assisted; D004562:Electrocardiography / Q000706:statistics & numerical data*; D006801:Humans; D012815:Signal Processing, Computer-Assisted