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Title: Evaluation of a Nonlinear Optimization Method for Measuring Human Movement Using Inertial Measurement Units
Inertial measurement units (IMUs) are an alternative to traditional optical motion capture systems that allow for data collection outside the lab and continuous monitoring for daily activities. In this study, a non-linear least squares optimization was used to convert IMU measurements into joint kinematics. The optimization calculates joint angles simultaneously over all time frames by optimizing B-spline nodes, without integrating any IMU measurements. This approach enables an accurate solution that works well with noisy experimental IMU data since integration errors are eliminated.  more » « less
Award ID(s):
1805896
NSF-PAR ID:
10355173
Author(s) / Creator(s):
Date Published:
Journal Name:
Proceedings of the 9th World Congress of Biomechanics
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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