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A python program that detects the pulse rate of an individual through the webcam. This is a contact-less method for pulse detection and can work on any camera/environment

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rohandubey/Pulse-rate-monitoring-system

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Heart-rate-monitoring-system

pypi versions PyPI status

Introduction

This is a python code that detects the pulse of a an individual using a webcam or Network IP camera (http/ rtsp/ rtmp). This is a non-touch based method specifically for those people suffering from Hypersensitivity. Other than this, this software is extremely useful in current COVID-19 pandemic as it requires pure contactless functioning. This software is build using OpenCV Framework and using Fourier transformation to get the Pulese Value on a fitered and cleaned data received.

Inference

  • This software uses OpenCV to detect human face and isolates the cheeks region.
  • Cheeks region contain most of the blood vessels passing through and thus is in our Region of Interest(ROI).

  • It monitors green color intensity(subimage of red colou, as red is reflected) in the ROI and isolates the pulse pattern from the average intensity.
  • using a low bandpass filter and Fast Fourier Transformation.
  • The exagerated color patters makes it easier for heartbeat identification.
  • Then the pulse is isolated in about 5 secs and updates every 2 secs and syncs with user's heartbeat.

Working

  • execute
$ python run.py    --camera 0  # webcam(number)
                   --source file.jpg  # image 
                            file.mp4  # video
                            rtsp://170.93.143.139/rtplive/470011e600ef003a004ee33696235daa  # rtsp stream
                            rtmp://192.168.1.105/live/test  # rtmp stream
                            http://112.50.243.8/PLTV/88888888/224/3221225900/1.m3u8  # http stream
                     --move True # If camera/user are not stable
                            False # if camera/user are stable
  • Wait for 5 secs for software to isolate Pulse. The waiting screen looks like this:

  • The isolated Pulse value is shown in the screen and gets updated every 2 secs.

Installation

Face detection mode to be downloaded and kept in same repository, file to be downloaded : "shape_predictor_68_face_landmarks.dat"

Future Updates

  • Add multi-Processing to enable faster detection and easier processing.
  • Add a GUI support.
  • Add multi-streaming/multiple face detection.

Authors

Made with ❤️ by Rohan Dubey

References

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A python program that detects the pulse rate of an individual through the webcam. This is a contact-less method for pulse detection and can work on any camera/environment

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