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Article Dans Une Revue Sensors Année : 2024

Development and Evaluation of a Hybrid Measurement System to Determine the Kinematics of the Wrist

Jason Dellai
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Martine A Gilles
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Olivier Remy
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Laurent Claudon
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Résumé

Optical Motion Capture Systems (OMCSs) are considered the gold standard for kinematic measurement of human movements. However, in situations such as measuring wrist kinematics during a hairdressing activity, markers can be obscured, resulting in a loss of data. Other measurement methods based on non-optical data can be considered, such as magneto-inertial measurement units (MIMUs). Their accuracy is generally lower than that of an OMCS. In this context, it may be worth considering a hybrid system [MIMU + OMCS] to take advantage of OMCS accuracy while limiting occultation problems. The aim of this work was (1) to propose a methodology for coupling a low-cost MIMU (BNO055) to an OMCS in order to evaluate wrist kinematics, and then (2) to evaluate the accuracy of this hybrid system [MIMU + OMCS] during a simple hairdressing gesture. During hair cutting gestures, the root mean square error compared with the OMCS was 4.53° (1.45°) for flexion/extension, 5.07° (1.30°) for adduction/abduction, and 3.65° (1.19°) for pronation/supination. During combing gestures, they were significantly higher, but remained below 10°. In conclusion, this system allows for maintaining wrist kinematics in case of the loss of hand markers while preserving an acceptable level of precision (<10°) for ergonomic measurement or entertainment purposes.
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hal-04584619 , version 1 (23-05-2024)

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Jason Dellai, Martine A Gilles, Olivier Remy, Laurent Claudon, Gilles Dietrich. Development and Evaluation of a Hybrid Measurement System to Determine the Kinematics of the Wrist. Sensors, 2024, 24 (8), pp.2543. ⟨10.3390/s24082543⟩. ⟨hal-04584619⟩
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