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[A Light Adaptive Heart Rate Detection Method Based on Webcam].

Authors :
Jia M
Li Z
Yang X
Xu M
Zhao L
Yang B
Source :
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation [Zhongguo Yi Liao Qi Xie Za Zhi] 2020 Oct 08; Vol. 44 (5), pp. 377-383.
Publication Year :
2020

Abstract

In order to extract the pulse wave signal of blood volume effectively in the case of uneven light, a light-adaptive heart rate detection method based on webcam was proposed. In this method, adaptive gamma transform is applied to face image sequence to eliminate the influence of illumination. The pulse wave source signal was extracted from the forehead area and the blood volume pulse wave was obtained by wavelet filtering. The heart rate is estimated by Fourier transform analysis. The Bland-Altman analysis indicates that the method used in this paper is in good agreement with the measurement results of the electronic sphygmomanometer, and the adaptive gamma transformation used in this paper eliminates the influence of light interference, and the measurement error of heart rate is significantly reduced, which is completely able to meet the requirements of daily heart rate monitoring.

Details

Language :
Chinese
ISSN :
1671-7104
Volume :
44
Issue :
5
Database :
MEDLINE
Journal :
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
Publication Type :
Academic Journal
Accession number :
33047557
Full Text :
https://doi.org/10.3969/j.issn.1671-7104.2020.05.001