how do I detect onset in PPG data?
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kehkashan kanwal
on 14 Jul 2021
Commented: Ram Krishnan
on 29 Jan 2022
I am working on queensland vital sign database. I have divided the pleth data into one minute segments for each case. Now for each minute I need to do onset detection however I am unable to do so.
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Ram Krishnan
on 29 Jan 2022
I am also looking for a way to do this (for PPG-to-blood pressure algorithms). Here's an algorithm from Harvard that might be useful:
"An open-source algorithm to detect onset of arterial blood pressure pulses" by Zong, et al
It's written for arterial BP which has a much bigger amplititude than PPG but that should be a matter of scaling. The fundamental ideas should still be applicable.
Accepted Answer
Star Strider
on 14 Jul 2021
Without knowing the details, there are several functions and approaches that can be used to detect the onset of each pulse (assuming a flat, detrended baseline).
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