| Autor: |
Stefanou T; Camin Team, National Institute for Research in Computer Science and Automation (Inria), 34090 Montpellier, France., Guiraud D; Camin Team, National Institute for Research in Computer Science and Automation (Inria), 34090 Montpellier, France.; Neurinnov, 34600 Les Aires, France., Fattal C; Camin Team, National Institute for Research in Computer Science and Automation (Inria), 34090 Montpellier, France.; Rehabilitation Center Bouffard Vercelli, USSAP, 66000 Perpignan, France., Azevedo-Coste C; Camin Team, National Institute for Research in Computer Science and Automation (Inria), 34090 Montpellier, France., Fonseca L; Camin Team, National Institute for Research in Computer Science and Automation (Inria), 34090 Montpellier, France. |
| Abstrakt: |
Working towards the development of robust motion recognition systems for assistive technology control, the widespread approach has been to use a plethora of, often times, multi-modal sensors. In this paper, we develop single-sensor motion recognition systems. Utilising the peripheral nature of surface electromyography (sEMG) data acquisition, we optimise the information extracted from sEMG sensors. This allows the reduction in sEMG sensors or provision of contingencies in a system with redundancies. In particular, we process the sEMG readings captured at the trapezius descendens and platysma muscles. We demonstrate that sEMG readings captured at one muscle contain distinct information on movements or contractions of other agonists. We used the trapezius and platysma muscle sEMG data captured in able-bodied participants and participants with tetraplegia to classify shoulder movements and platysma contractions using white-box supervised learning algorithms. Using the trapezius sensor, shoulder raise is classified with an accuracy of 99%. Implementing subject-specific multi-class classification, shoulder raise , shoulder forward and shoulder backward are classified with a 94% accuracy amongst object raise and shoulder raise-and-hold data in able bodied adults. A three-way classification of the platysma sensor data captured with participants with tetraplegia achieves a 95% accuracy on platysma contraction and shoulder raise detection. |
