Motion-compensated detection of heart rate based on the time registration adaptive filter

Lei Yang; Jinsong Zhou; Juanjuan Jing; Yacan Li; Lidong Wei; Lei Feng; Xiaoying He; Meixia Bu; Xilu Fu

doi:10.1117/12.2280757

2 January 2018 Motion-compensated detection of heart rate based on the time registration adaptive filter

Lei Yang, Jinsong Zhou, Juanjuan Jing, Yacan Li, Lidong Wei, Lei Feng, Xiaoying He, Meixia Bu, Xilu Fu

Proceedings Volume 10456, Nanophotonics Australasia 2017; 1045651 (2018) https://doi.org/10.1117/12.2280757
Event: SPIE Nanophotonics Australasia, 2017, Melbourne, Australia

Abstract

A non-contact heart rate detection method based on the dual-wavelength technique is proposed and demonstrated experimentally. The heart rate is obtained based on the PhotoPlethysmoGraphy (PPG). Each detection module uses the reflection detection probe which is composed of the LED and the photodiode. It is a well-known fact that the differences in the circuits of two detection modules result in different responses of two modules for motion artifacts. It will cause a time delay between the two signals. This poses a great challenge to compensate the motion artifacts during measurements. In order to solve this problem, we have firstly used the time registration and translated the signals to ensure that the two signals are consistent in time domain. Then the adaptive filter is used to compensate the motion artifacts. Moreover, the data obtained by using this non-contact detection system is compared with those of the conventional finger blood volume pulse (BVP) sensor by simultaneously measuring the heart rate of the subject. During the experiment, the left hand remains stationary and is detected by a conventional finger BVP sensor. Meanwhile, the moving palm of right hand is detected by the proposed system. The data obtained from the proposed non-contact system are consistent and comparable with that of the BVP sensor. This method can effectively suppress the interference caused by the two circuit differences and successfully compensate the motion artifacts. This technology can be used in medical and daily heart rate measurement.

Citation Download Citation

Lei Yang, Jinsong Zhou, Juanjuan Jing, Yacan Li, Lidong Wei, Lei Feng, Xiaoying He, Meixia Bu, and Xilu Fu "Motion-compensated detection of heart rate based on the time registration adaptive filter", Proc. SPIE 10456, Nanophotonics Australasia 2017, 1045651 (2 January 2018); https://doi.org/10.1117/12.2280757

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KEYWORDS

Digital filtering

Heart

Electronic filtering

Photodiodes

Optical filters

Sensors

Infrared radiation

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