Liang K, Sun Y, Tian F, Ye S. Research on Algorithm of Extracting PPG Signal for Detecting Atrial Fibrillation based on Probability Density Function.
Open Biomed Eng J 2015;
9:179-184. [PMID:
30972146 PMCID:
PMC6407308 DOI:
10.2174/1874120701509010179]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/21/2014] [Accepted: 12/19/2014] [Indexed: 11/22/2022] Open
Abstract
The paper introduced a new method based on probability density function (PDF) and phase space diagram method for photoplethysmography (PPG) signal extracting. In the paper, PPG information was generated from human fingertips by smartphones. The pulse wave period was then separated and reconstructed into probability density function (PDF) by the phase space diagram algorithm. The difference between normal sinus rhythm (NSR) and atrial fibrillation (AF) was finally found by skewness of the PDF. The results of the present study demonstrates that the new method is vividly viable for detecting AF on the smartphone.
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