how do I detect onset in PPG data?
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kehkashan kanwal
le 14 Juil 2021
Commenté : Ram Krishnan
le 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
le 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.
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Star Strider
le 14 Juil 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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