dengbuqi/heartbeat-js-faceapi

JavaScript implementation of Remote Photoplethysmography – Measuring pulse rate using facial video.

heartbeat-js: Video-based pulse rate monitoring in JavaScript

This is a simple JavaScript implementation of rPPG, a way to measure the pulse rate without skin contact. It uses a live feed of the face to analyse subtle changes in skin color.

Here's how it works:

• The face is detected and continuously tracked
• Signal series is obtained by determining the facial color in every frame
• Heart rate is estimated using frequency analysis and filtering of the series

If you are interested in the specifics, feel free to have a read of my publications on the topic:

• Remote Photoplethysmography: Evaluation of Contactless Heart Rate Measurement in an Information Systems Setting
• Using Contactless Heart Rate Measurements for Real-Time Assessment of Affective States
• Remote heart rate measurement using low-cost RGB face video: A technical literature review

Demo

Test the live demo directly in your browser: Demo

Currently, tracking is disabled. Works best if there is no subject motion.

See also my C++ implementation and YouTube Demo.

Addition

I replace the face detection function to FaceAPI project. It makes the process faster!

License

GPL-3.0