The purpose of this study was to examine an efficient interval encoding method with a slow-frame-rate image sensor, and show that the encoding can work to capture heart rates from multiple persons. Visible light communication (VLC) with an image sensor is a powerful method for obtaining data from sensors distributed in the field with their positional information. However, the capturing speed of the camera is usually not fast enough to transfer interval information like the heart rate. To overcome this problem, we have developed an event timing (ET) encoding method. In ET encoding, sensor units detect the occurrence of heart beat event and send their timing through a sequence of flashing lights. The first flash signal provides the rough timing and subsequent signals give the precise timing. Our theoretical analysis shows that in most cases the ET encoding method performs better than simple encoding methods. Heart rate transfer from multiple persons was examined as an example of the method's capabilities. In the experimental setup, the developed system successfully monitored heart rates from several participants.
Takashi G. SATO
NTT Corporation
Yoshifumi SHIRAKI
NTT Corporation
Takehiro MORIYA
NTT Corporation
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Takashi G. SATO, Yoshifumi SHIRAKI, Takehiro MORIYA, "Heart Rate Measurement Based on Event Timing Coding Observed by Video Camera" in IEICE TRANSACTIONS on Communications,
vol. E100-B, no. 6, pp. 926-931, June 2017, doi: 10.1587/transcom.2016LCP0003.
Abstract: The purpose of this study was to examine an efficient interval encoding method with a slow-frame-rate image sensor, and show that the encoding can work to capture heart rates from multiple persons. Visible light communication (VLC) with an image sensor is a powerful method for obtaining data from sensors distributed in the field with their positional information. However, the capturing speed of the camera is usually not fast enough to transfer interval information like the heart rate. To overcome this problem, we have developed an event timing (ET) encoding method. In ET encoding, sensor units detect the occurrence of heart beat event and send their timing through a sequence of flashing lights. The first flash signal provides the rough timing and subsequent signals give the precise timing. Our theoretical analysis shows that in most cases the ET encoding method performs better than simple encoding methods. Heart rate transfer from multiple persons was examined as an example of the method's capabilities. In the experimental setup, the developed system successfully monitored heart rates from several participants.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.2016LCP0003/_p
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@ARTICLE{e100-b_6_926,
author={Takashi G. SATO, Yoshifumi SHIRAKI, Takehiro MORIYA, },
journal={IEICE TRANSACTIONS on Communications},
title={Heart Rate Measurement Based on Event Timing Coding Observed by Video Camera},
year={2017},
volume={E100-B},
number={6},
pages={926-931},
abstract={The purpose of this study was to examine an efficient interval encoding method with a slow-frame-rate image sensor, and show that the encoding can work to capture heart rates from multiple persons. Visible light communication (VLC) with an image sensor is a powerful method for obtaining data from sensors distributed in the field with their positional information. However, the capturing speed of the camera is usually not fast enough to transfer interval information like the heart rate. To overcome this problem, we have developed an event timing (ET) encoding method. In ET encoding, sensor units detect the occurrence of heart beat event and send their timing through a sequence of flashing lights. The first flash signal provides the rough timing and subsequent signals give the precise timing. Our theoretical analysis shows that in most cases the ET encoding method performs better than simple encoding methods. Heart rate transfer from multiple persons was examined as an example of the method's capabilities. In the experimental setup, the developed system successfully monitored heart rates from several participants.},
keywords={},
doi={10.1587/transcom.2016LCP0003},
ISSN={1745-1345},
month={June},}
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TY - JOUR
TI - Heart Rate Measurement Based on Event Timing Coding Observed by Video Camera
T2 - IEICE TRANSACTIONS on Communications
SP - 926
EP - 931
AU - Takashi G. SATO
AU - Yoshifumi SHIRAKI
AU - Takehiro MORIYA
PY - 2017
DO - 10.1587/transcom.2016LCP0003
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E100-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2017
AB - The purpose of this study was to examine an efficient interval encoding method with a slow-frame-rate image sensor, and show that the encoding can work to capture heart rates from multiple persons. Visible light communication (VLC) with an image sensor is a powerful method for obtaining data from sensors distributed in the field with their positional information. However, the capturing speed of the camera is usually not fast enough to transfer interval information like the heart rate. To overcome this problem, we have developed an event timing (ET) encoding method. In ET encoding, sensor units detect the occurrence of heart beat event and send their timing through a sequence of flashing lights. The first flash signal provides the rough timing and subsequent signals give the precise timing. Our theoretical analysis shows that in most cases the ET encoding method performs better than simple encoding methods. Heart rate transfer from multiple persons was examined as an example of the method's capabilities. In the experimental setup, the developed system successfully monitored heart rates from several participants.
ER -