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Strengths and Weaknesses of 3D Pose Estimation and Inertial Motion Capture System for Movement Therapy by Mohammed, Shawan; Siebers, Hannah; Preuß, Ted is a scholarly article available to read on EtoBox.

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3D pose estimation offers the opportunity for fast, non-invasive, and accurate motion analysis. This is of special interest also for clinical use. Currently, motion capture systems are used, as they offer robust and precise data acquisition, which is essential in the case of clinical applications. In this study, we investigate the accuracy of the state-of-the-art 3D position estimation approach MeTrabs, compared to the established inertial sensor system MTw Awinda for specific motion exercises. The study uses and provides an evaluation dataset of parallel recordings from 10 subjects during various movement therapy exercises. The information from the Awinda system and the frames for monocular pose estimation are synchronized. For the comparison, clinically relevant parameters for joint angles of ankle, knee, back, and elbow flexion-extension were estimated and evaluated using mean, median, and maximum deviation between the calculated joint angles for the different exercises, camera positions, and clothing items. The results of the analysis indicate that the mean and median deviations can be kept below 5{\deg} for some of the studied angles. These joints could be considered for medic

Author

Mohammed, Shawan; Siebers, Hannah; Preuß, Ted

Published

2023

Language

EN