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Respiration Signals from Photoplethysmography
Anesthesia & Analgesia, 2013Pulse oximetry is based on the technique of photoplethysmography (PPG) wherein light transmitted through tissues is modulated by the pulse. In addition to variations in light modulation by the cardiac cycle, the PPG signal contains a respiratory modulation and variations associated with changing tissue blood volume of other origins.
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Signal recovery in imaging photoplethysmography
Physiological Measurement, 2013Imaging photoplethysmography is an emerging technique for the extraction of biometric information from people using video recordings. The focus is on extracting the cardiac heart rate of the subject by analysing the luminance of the colour video signal and identifying periodic components.
Benjamin D, Holton +3 more
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Cardiac arrhythmia detection using photoplethysmography
2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2017Cardiovascular Diseases (CVDs) cause a very large number of casualties around the world every year and cardiac arrhythmias contribute to significant proportion of CVD related deaths. Bedside cardiac activity monitors in hospitals are based on electrocardiogram (ECG) processing and are known to produce too many false alarms.
Neeraj, Paradkar +1 more
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Hemodynamic sensing using subcutaneous photoplethysmography
American Journal of Physiology-Heart and Circulatory Physiology, 2008Pacemakers and implantable defibrillators presently operate without access to hemodynamic information. If available, such data would allow tailoring of delivered therapy according to perfusion status, optimization of device function, and enhancement of disease monitoring and management.
Robert G, Turcott, Todd J, Pavek
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Photoplethysmography detection by smartphone's videocamera
Proceedings of the 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems, 2011Smartphone's video cameras become more and more powerful while the devices itself become used by many people. That allows utilizing them for many every-day tasks. One of such suitable application of the widely used smartphones is monitoring the state of the health.
Grimaldi D +3 more
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Novel photoplethysmography system
AIP Conference Proceedings, 2001Optical technologies are new technical tool which are being implemented for medical diagnosis and prescription in various processes related to detection within human blood. They have the virtue of be noninvasive method and nondestructive methods, in addition to being a remote detection technique, sensibility enough as to study the properties of the ...
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ROI Selection for Remote Photoplethysmography
2013Camera-based remote photoplethysmography (rPPG) is a technique that can be used to measure vital signs contactlessly. In order to optimize the extraction of photoplethysmographic signals from video sequences, we investigate the spatial dependence of the photoplethysmographic signal.
Lempe, Georg +4 more
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