Post-stroke hand gesture recognition via one-shot transfer learning using prototypical networks

Autor: Hussein Sarwat, Amr Alkhashab, Xinyu Song, Shuo Jiang, Jie Jia, Peter B. Shull
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of NeuroEngineering and Rehabilitation, Vol 21, Iss 1, Pp 1-13 (2024)
Druh dokumentu: article
ISSN: 1743-0003
DOI: 10.1186/s12984-024-01398-7
Popis: Abstract Background In-home rehabilitation systems are a promising, potential alternative to conventional therapy for stroke survivors. Unfortunately, physiological differences between participants and sensor displacement in wearable sensors pose a significant challenge to classifier performance, particularly for people with stroke who may encounter difficulties repeatedly performing trials. This makes it challenging to create reliable in-home rehabilitation systems that can accurately classify gestures. Methods Twenty individuals who suffered a stroke performed seven different gestures (mass flexion, mass extension, wrist volar flexion, wrist dorsiflexion, forearm pronation, forearm supination, and rest) related to activities of daily living. They performed these gestures while wearing EMG sensors on the forearm, as well as FMG sensors and an IMU on the wrist. We developed a model based on prototypical networks for one-shot transfer learning, K-Best feature selection, and increased window size to improve model accuracy. Our model was evaluated against conventional transfer learning with neural networks, as well as subject-dependent and subject-independent classifiers: neural networks, LGBM, LDA, and SVM. Results Our proposed model achieved 82.2% hand—gesture classification accuracy, which was better (P
Databáze: Directory of Open Access Journals
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