A Light Adaptive Heart Rate Detection Method Based on Webcam / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 377-383, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-942745
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Video Recording
/
Blood Volume
/
Algorithms
/
Internet
/
Face
/
Heart Rate
/
Monitoring, Physiologic
Type of study:
Diagnostic study
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Medical Instrumentation
Year:
2020
Type:
Article
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