Extracting Vital Signs

This article explains the algorithm's function toward extracting vital signs.

Face Detection

Face detection is performed by a deep learning model

Frame Processing

A very low-light algorithm processes the camera's frames with your face on them.

rPPG Technology

As a part of our algorithm, we process the rPPG vital signs by processing the image, so we know the exact frame your heart beats and the time you have a heart rate peak.

Vital Signs Extraction

By verifying these peaks it is possible to know when your heart beats, which in turn gives us information about the heart rate, oxygen saturation, and respiratory rate.

Time Frames

  • 9 seconds: It takes approximately 9 seconds to show the heart rate and oxygen saturation
  • 34 seconds: It takes a further 25 seconds to extract the respiration rate
  • 90 seconds: After approximately 90 seconds there is enough data to collect HRV and stress levels
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