Incorrect position calculation from IMU for gait analysis
5 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Hello All, i am trying to do gait analysis using an IMU. I am using a zero velocity update algorthm to force the food valeocity to zero when it is stationary. The final position i am calcualting is less than what i am expecting, and there is a change in position in axis where there should not be. Does anyone have any ideas as to why this my be the case? Ive attached a picture after of the position plot after i walked 8 meters with an IMU strapped to my foot.
The IMU i am using also outputs quaternions (if that is helpful?)
Thank you for any help
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/385963/image.png)
1 Commento
James Tursa
il 20 Ott 2020
You will need to show us the algorithm/code you are using. Yes, you need to use the quaternion data to orient the acceleration values in order to get proper displacement calculations.
Risposte (0)
Vedere anche
Categorie
Scopri di più su Coordinate Transformations in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!