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Explains about Remote sensing of heart rate and the data given by it i.e., Pulse Oximetry, Kinect, Heart Rate and Reflectance measuremnet setup. For more information visit: http://www.transformhealth-it.org/
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Remote sensing of heart rate and blood oxygenation level using
gaming camera-based technologyDavid Harris-Birtill1*, David Morrison1, Devesh Dhasmana2,3 1School of Computer Science, University of St Andrews, Fife, KY16 9SX, Scotland, UK2School of Medicine, University of St Andrews, Fife, KY16 9TJ, Scotland, UK3NHS Fife, Victoria Hospital, Hayfield Road, Kirkcaldy, KY2 5AH, Scotland, UK
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Pulse Oximetry• Heart Rate (less than 40, or more than 130
beats per minute = bad)*• Blood Oxygenation level (less than 90% =
bad)*
* Taenzer et al. “Impact of pulse oximetry surveillance on rescue events and intensive care unit transfers: a before-and-after concurrence study.” Anesthesiology. 112 (2010): 282-7.
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Kinect: what data does it give us?• Colour image (RGB)
• Infrared (IR) image
• Depth map
• Joint positions (head arms legs etc.)
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Reflectance measurement setup
PCSpectrometer
White light
source
USB
Fibre optic cableUSB
Pulse oximeter
PCKinect
v2USB
USB
Pulse oximeter
Imaging area
Spectrometer setup
Kinect setup
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Calculation of heart rate
Peak frequency:72 beats per minute
Integrated intensity over time(across all wavelengths)
Frequency content (using FFT) after high pass filter
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Calculated heart rate at each wavelength
High accuracy
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Automated extraction of colour and IR skin reflectance
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Remote pulse oximetry
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David [email protected]
Questions?
Acknowledgements:- Co-authors: David Morrison, Devesh Dhasmana- St Andrews Human Computer Interaction (SACHI) lab
Institutions: Funding: