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Telfor Journal
2015, vol. 7, br. 1, str. 26-30
jezik rada: engleski
vrsta rada: neklasifikovan

Classifying sEMG-based hand movements by means of principal component analysis
(naslov ne postoji na srpskom)
aUniversity of Belgrade - School of Electrical Engineering, Belgrade + Tecnalia Serbia Ltd., Belgrade
bUniverzitet u Beogradu, Elektrotehnički fakultet



Efekti asistivnih sistema u neurorehabilitaciji: oporavak senzorno-motornih funkcija (MPNTR - 175016)


(ne postoji na srpskom)
In order to improve surface electromyography (sEMG) based control of hand prosthesis, we applied Principal Component Analysis (PCA) for feature extraction. The sEMG data from a group of healthy subjects (downloaded from free NINAPRO database) comprised the following sets: three grasping, eight wrist, and eleven finger movements. We tested the accuracy of a simple quadratic classifier for two sets of features derived from PCA. Preliminary results suggest that the first two principal components do not guarantee successful hand movement classification. The hand movement classification accuracy significantly increased with using three instead of two features, in all three sets of movements and throughout all subjects.

Ključne reči

feature extraction; healthy subjects; grasp; principal component analysis; surface electromyography


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