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fwolling / PPGraw

DATA'20 - PPGraw is an analytical tool for the quality review of raw photoplethysmography (PPG) signals, based on 7 multi-varied decision metrics. It has been applied in the review of 10 publicly available photoplethysmography datasets.
https://ubicomp.eti.uni-siegen.de/home/datasets/data20/index.html.en
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heteroscedasticity issue #2

Open wanghaisheng opened 10 months ago

wanghaisheng commented 10 months ago

heteroscedasticity is that the variance is not constant

recently I have read a paper about ppg signal processing,after a bunch of test ,the author say data collected from some unknown brand smart watch filtered ppg signal for different person is too heterogeneity so it is not usable.

do we need this in quality review of raw photoplethysmography (PPG) signals, @fwolling

fwolling commented 10 months ago

Yes, that makes sense - would be interesting to make a study specifically focusing on that! @wanghaisheng

wanghaisheng commented 10 months ago

after dig a little ,it seems quite simple , we just cal variance between diff person