Machine Learning to Improve Orientation Estimation in Sports Situations Challenging for Inertial Sensor Use.

ABSTRACT: In sports, inertial measurement units are often used to measure the orientation of human body segments. A Madgwick (MW) filter can be used to obtain accurate inertial measurement unit (IMU) orientation estimates. This filter combines two different orientation estimates by applying a correction of the (1) gyroscope-based estimate in the direction of the (2) earth frame-based estimate. However, in sports situations that are characterized by relatively large linear accelerations and/or close magnetic sources, such as wheelchair sports, obtaining accurate IMU orientation estimates is challenging. In these situations, applying the MW filter in the regular way, i.e., with the same magnitude of correction at all time frames, may lead to estimation errors. Therefore, in this study, the MW filter w

SUBMITTER: van Dijk MP 

PROVIDER: S-EPMC8369156 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature