KIM, JEONG HWANKR,김정환,CHOI, GI YOUNGKR,최기영,CHOI, MIN JOONKR,최민준,NA, SEUNG JUNKR,나승준,YANG, DONG INKR,양동인,JUN, JAE WOOKR,전재우,BAE, YOON JAEKR,배윤재,SONG, KI SUNKR,송기선,KIM, KUUNG TAEKR,김경태,BAE, YOUNG SOOKR
申请号：
KR1020160095259
公开号：
KR1020180012891A
申请日:
2016.07.27
申请国别(地区):
KR
年份:
2018
代理人:
摘要：
The present invention relates to a method for removing a nose of a biological signal. The purpose of the present invention is to obtain an accurate and clear biological signal by removing motion artifacts and AWGN mixed in the obtained biological signal through discrete wavelet transform (DWT) and morphological filtering, to remove a noise below a threshold value from an electrocardiogram (ECG) signal obtained from a subject through three-step DWT, to extract and remove low frequency motion artifacts through erosion/dilation operations, and then to clearly obtain P, Q, R, S, and T points of the ECG signal.COPYRIGHT KIPO 2018본 발명은 생체신호 노이즈 제거방법에 관한 것으로, DWT(Discrete Wavelet Transform)와 모폴로지필터(Morphological filtering)를 통해 획득된 생체신호에 섞여 있는 AWGN과 동 잡음을 제거하여 정확하고 명확한 생체신호를 획득하도록 하며, 피검자로부터 획득된 심전도(ECG)신호를 3단계의 DWT를 통해 임계값 이하의 잡음을 제거하고, 에로전/딜레이션(Erosion/Dilation) 연산을 통해 저주파 동잡음을 추출 및 제거한 후 ECG신호의 "P, Q, R, S, T" 지점을 선명하게 획득하도록 하는데 그 목적이 있다.
