Methods
Heartrate was analyzed from video of speeches using eulerian video magnification -- a combination of spatial and temporal processing of videos that that can reveal important aspects of a scene. A video sequence is spatially decomposed (i.e., separated into different spatial frequency bands) and temporally filtered with an adjustable band-pass filter and the resulting signal is amplified to reveal hidden temporal variations
Heartrate From Video Heartrate From Color Success
Methods
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Results Over time
Biden's revealed heart rate is in the healthy 60-100 range. In fact it is consistently lower than is normal for someone his age.
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Results for a Single Speech
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Side by side videos: Speech and Magnifided Speech
Eulerian magnified speech reveals perturbations due to heart rate