Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Development of Interface device with EOG Signal

EOG(Electro-oculogram) 신호를 이용한 Interface 장치 개발

  • Kim, Su-Jong (School of Electrical and Computer Eng, Chungbuk National University) ;
  • Ryu, Ho-Sun (School of Electrical and Computer Eng, Chungbuk National University) ;
  • Kim, Young-Chol (Dept. of Electronics Eng, Chungbuk National University)
  • Published : 2006.07.12
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Abstract

This paper presents a development of interface device for electro-oculogram(EOG) signal and it's application to the wireless mouse of wearable PC. The interface device is composed of five bio-electrodes for detecting oculomotor motion, several band-pass filters, instrumentation amplifier and a microprocessor. we have first analyzed impedance characteristics between skin and a bio-electrode. since the impedance highly depends on human face, it's magnitude differs from person. this interface device was applied to develop a wireless mouse for wearable PC, as a Bio Machine Interface(BMI). Where in the prompt on PC monitor is controlled by only EOG signals. this system was implemented in a Head Mount Display(HMD) unit. experimental results show the accuracy of above 90%.

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