A Real-Time BCI for Stroke Hand Rehabilitation Using Latent EEG Features from Healthy Subjects

• URL: http://arxiv.org/abs/2510.15890v1
• Date: Sun, 07 Sep 2025 22:19:03 GMT
• Title: A Real-Time BCI for Stroke Hand Rehabilitation Using Latent EEG Features from Healthy Subjects
• Authors: F. M. Omar, A. M. Omar, K. H. Eyada, M. Rabie, M. A. Kamel, A. M. Azab,
• Abstract summary: This study presents a real-time, portable brain-computer interface (BCI) system designed to support hand rehabilitation for stroke patients.<n>The system combines a low cost 3D-printed robotic exoskeleton with an embedded controller that converts brain signals into physical hand movements.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This study presents a real-time, portable brain-computer interface (BCI) system designed to support hand rehabilitation for stroke patients. The system combines a low cost 3D-printed robotic exoskeleton with an embedded controller that converts brain signals into physical hand movements. EEG signals are recorded using a 14-channel Emotiv EPOC+ headset and processed through a supervised convolutional autoencoder (CAE) to extract meaningful latent features from single-trial data. The model is trained on publicly available EEG data from healthy individuals (WAY-EEG-GAL dataset), with electrode mapping adapted to match the Emotiv headset layout. Among several tested classifiers, Ada Boost achieved the highest accuracy (89.3%) and F1-score (0.89) in offline evaluations. The system was also tested in real time on five healthy subjects, achieving classification accuracies between 60% and 86%. The complete pipeline - EEG acquisition, signal processing, classification, and robotic control - is deployed on an NVIDIA Jetson Nano platform with a real-time graphical interface. These results demonstrate the system's potential as a low-cost, standalone solution for home-based neurorehabilitation.

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