Incorrect position calculation from IMU for gait analysis
7 次查看(过去 30 天)
显示 更早的评论
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
1 个评论
James Tursa
2020-10-20
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.
回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Coordinate Transformations 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!