أ.م.د. محمود حمزة محمد المفرجي
  • EMG Signals Classification of Wide Range Motion Signals for Prosthetic Hand Control
  • The recent revolution in the biomedical field carried out the researchers to work on the prosthetic technique
    because it reflects the amputee's need. Therefore, the electromyography (EMG) signals generated by muscle
    contractions are used to implement the prosthetic human body parts. This paper presents a pattern recognition system
    based on two EMG data; the first EMG data represents the general body movements collected from biceps and triceps
    muscles for six different motions, i.e., bowing, clapping, handshaking, hugging, jumping, and running. The Root Mean
    Square, Difference Absolute Standard Deviation Value, and Principal Component Analysis extract the raw signal data
    features and enhance classification accuracy. The machine learning method is applied, i.e., Support Vector Machine
    (SVM) and K-Nearest Neighbours (KNN) are used for data classification; the results show high accuracy reached
    94.8% and 98.9%, respectively. Whereas, the second EMG data is selected to be more specific in hand movements,
    i.e., cylindrical, spherical, palmar, lateral, hook, and tip motions, because these significant motions are the first step
    implementing any prosthetic hand. Consequently, the mean, Standard Deviation Value, and Principal Component
    Analysis extract the raw signal feature. Meanwhile, the same algorithm used in the first data classification is also used
    to classify the second data because it shows high accuracy and good performance. SVM algorithm is used to classify
    the data and achieved high training accuracy, reaching 89%. The high training accuracy for different hand movements
    is considered an essential step toward implementing human prosthetic parts to help the people who suffer from an
    amputee.