Abstract
Video Photoplethysmography (vPPG) allows for estimation of blood volume pulse (BVP) from the skin by means of a video camera recording at high frequency rate. The estimation procedure presents several drawbacks in its application to real world conditions, such as light changes or movements that often generate artifacts in the extracted BVP waveform. In addition, the process requires a skin segmentation algorithm to distinguish skin pixels from the background. To date, even the most refined skin segmentation algorithms still need a manual definition that could lead to incorrect pixel classification, and consequently to a decrease in the signal-to-noise ratio (SNR). We here propose a fully autonomic procedure able to extract BVP from video recordings of the skin in real world conditions.The experimental protocol is designed to record the signals of interest and to evaluate changes in the Autonomic Nervous System modulation of the heart during a baseline condition and a controlled breathing phase. Video recordings are gathered from 4 young healthy subjects (age: 21±1 years). vPPG signals are processed in order to extract the BVP waveform, and a peak detection algorithm detects pulse wave peaks that are then used to compute specific measures of heart rate variability (HRV).The procedure is successfully validated by comparing the extracted HRV measures against those extracted using a finger photoplethysmograph (fPPG) using three different skin segmentation algorithms from BVP signals.
Original language | English |
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Title of host publication | 42nd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society |
Subtitle of host publication | Enabling Innovative Technologies for Global Healthcare, EMBC 2020 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 4349-4352 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-7281-1990-8 |
DOIs | |
Publication status | Published - Jul 2020 |
Externally published | Yes |
Event | 42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2020 - Montreal, Canada Duration: 20 Jul 2020 → 24 Jul 2020 Conference number: 42 |
Publication series
Name | Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference |
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ISSN (Print) | 2375-7477 |
Conference
Conference | 42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2020 |
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Abbreviated title | EMBC 2020 |
Country/Territory | Canada |
City | Montreal |
Period | 20/07/20 → 24/07/20 |
Keywords
- Algorithms
- Autonomic Nervous System
- Blood Volume
- Heart Rate
- Humans
- Photoplethysmography
- Young Adult