/heartrack

An wavelet method to detect heart beating rate from wrist-type PPG Data. From Paper:

Primary LanguageMATLABMIT LicenseMIT

Introduction

I just Finish 2015 IEEE Signal Processing Cup, and here is an Heart Rate Tracking algorithm using Wrist-Typed PPG Signal.

Notice

This is Not the exact algorithm we used in the paper: http://web.cse.ohio-state.edu/~tke/doc/MICROST.pdf, which gave better result than this one, but the idea and procedure are the same.



How to Run

  1. Download the code
  2. Add Path in Matlab
  3. change variable in init.m (where to save pictures)

Then

runall_train %% run algorithm on all training data
runall_test  %% run algorithm on all testing data

You will see the result.



About the algorithm

  • 7-order haar wavelet transform for signal preprocess
  • Four Heuristic Unit for tracking Frequency Peak

    • Memory Rule: for heart rate could not change too sharply

    • Magnitude Rule: select the larger peak

    • Wavelet Rule(only used in the first frame): When the heart rate peak submerges in motion peaks, the wavelet preprocess may make it emerges.

    • Acceleration Rule: When the subject speeds up, the heart rate tends to grow

And each rule corresponds to a M-file.

More

  • A Post in My Blog: Link (in Chinese)
  • More Intro: TODO


Data

The Data used here comes from HERE with copyrights. So if you want to use them, follow the instructions there.



LICENSE

The MIT License

Copyright (c) 2014-2015

Xinyu Zhang beviszhang1993@gmail.com

Ke Tan tk1116@mail.ustc.edu.cn

Shilin Zhu zsl712@mail.ustc.edu.cn

Zhiqiang Liu lzhq28@mail.ustc.edu.cn

Bin Liu flowice@ustc.edu.cn