A Light Adaptive Heart Rate Detection Method Based on Webcam.
10.3969/j.issn.1671-7104.2020.05.001
- Author:
Mengli JIA
1
;
Zhenwei LI
1
;
Xiaoli YANG
1
;
Mengying XU
1
;
Lei ZHAO
1
;
Bin YANG
1
Author Information
1. Lab of Medical Artificial Intelligence, School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471000.
- Publication Type:Journal Article
- Keywords:
Bland-Altman analysis;
adaptive gamma transform;
non-contact;
photo-plethysmography;
webcam
- MeSH:
Algorithms;
Blood Volume;
Face;
Heart Rate;
Humans;
Internet;
Monitoring, Physiologic;
Video Recording
- From:
Chinese Journal of Medical Instrumentation
2020;44(5):377-383
- CountryChina
- Language:Chinese
-
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.
