Elimination of Motion Artifacts in Photoplethysmography Signals by Analytical Method
學年 110
學期 1
出版(發表)日期 2021-11-30
作品名稱 Elimination of Motion Artifacts in Photoplethysmography Signals by Analytical Method
著者 Hualong Guo; Yang-Han Lee; Yi-Lun Chen; Shengrong Lu; Hsien-Wei Tsen
著錄名稱、卷期、頁數 Sensors and Materials 33(11), p.4017-4030
摘要 Taiwan currently faces an aging population and a rise in mortality rate caused by cardiovascular disease. Therefore, the prevention of cardiovascular disease and the constant tracking of physiological information are crucial. Photoplethysmography (PPG) is used to instantaneously measure and monitor a person’s physiological information. Compared with electrocardiography, PPG measurements are more convenient and less expensive. However, PPG is more susceptible to the effects of motion artifacts. To accurately analyze the physiological information contained in PPG signals, the negative effects of motion artifacts on PPG signals must first be eliminated. In this study, independent component analysis was employed to separate independent components (i.e., PPG signals and noise) from raw signals with motion artifacts. Subsequently, independent components containing PPG signals were selected and the locations of the PPG signal components in the frequency spectrum were analyzed. Next, the raw signals were passed through a multi-bandpass filter specifically designed for this study to eliminate motion artifacts. Motion artifacts were created for an experiment using two types of finger movements: vertical and horizontal finger movements. From the independent component analysis of the independent components, the waveforms of the filtered PPG signals in the time and frequency domains were acquired, which were then compared with the results of heartbeat measurement.
關鍵字 photoplethysmography (PPG);electrocardiography (ECG);independent component analysis;motion artifacts;multi-bandpass filter
語言 en
ISSN 0914-4935;2435-0869
期刊性質 國外
收錄於 SCI
國別 JPN
出版型式 ,電子版,紙本

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/123322 )