Multi-Step EMG classification algorithm for human-computer interaction Conference

Ren, P, Barreto, A, Adjouadi, M. (2010). Multi-Step EMG classification algorithm for human-computer interaction . 183-188. 10.1007/978-90-481-9112-3_31

cited authors

  • Ren, P; Barreto, A; Adjouadi, M

authors

abstract

  • A three-electrode human-computer interaction system, based on digital processing of the Electromyogram (EMG) signal, is presented. This system can effectively help disabled individuals paralyzed from the neck down to interact with computers or communicate with people through computers using point-and-click graphic interfaces. The three electrodes are placed on the right frontalis, the left temporalis and the right temporalis muscles in the head, respectively. The signal processing algorithm used translates the EMG signals during five kinds of facial movements (left jaw clenching, right jaw clenching, eyebrows up, eyebrows down, simultaneous left & right jaw clenching) into five corresponding types of cursor movements (left, right, up, down and left-click), to provide basic mouse control. The classification strategy is based on three principles: the EMG energy of one channel is typically larger than the others during one specific muscle contraction; the spectral characteristics of the EMG signals produced by the frontalis and temporalis muscles during different movements are different; the EMG signals from adjacent channels typically have correlated energy profiles. The algorithm is evaluated on 20 prerecorded EMG signal sets, using Matlab simulations. The results show that this method provides improvements and is more robust than other previous approaches. © Springer Science+Business Media B.V. 2010.

publication date

  • January 1, 2010

Digital Object Identifier (DOI)

start page

  • 183

end page

  • 188