Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A study on the analysis of evoked potentials using wavelet transform

Wavelet 변환을 이용한 유발전위뇌파의 해석에 관한 연구

  • Lee, Y.H. (Dept of Electronics, Hanyang Univ.) ;
  • Choi, K.H. (Dept. of Medical Information, Hanyang Univ.) ;
  • Lee, D.G. (Dept of Electronics, Hanyang Univ.) ;
  • You, S.Y. (Dept of Electronics, Hanyang Univ.) ;
  • Lee, E.G. (Dept of Electronics, Hanyang Univ.) ;
  • Kim, S.I. (Dept. of Medical Information, Hanyang Univ.) ;
  • Lee, D.S. (Dept of Electronics, Hanyang Univ.)
  • 이용희 (한양대학교 공과대학 전자공학과) ;
  • 최교환 (한양대학교 의과대학 계량의학교실) ;
  • 이동규 (한양대학교 공과대학 전자공학과) ;
  • 유시영 (한양대학교 공과대학 전자공학과) ;
  • 이응구 (한양대학교 공과대학 전자공학과) ;
  • 김선일 (한양대학교 의과대학 계량의학교실) ;
  • 이두수 (한양대학교 공과대학 전자공학과)
  • Published : 1996.05.17
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Abstract

Evoked Potentials signals occur as a result of neuroelectric responses of the brain to sensory stimulation. In this paper, to analysis such signals we utilize a time-frequency analysis technique called wavelet transform. The wavelet analysis is performed based on a single prototype function,which can be thought of as a bandpass filter. Because the wavelet transform in a fine temporal analysis decomposes time-varying signals in EP into a dilated lowpass and a contracted highpass components, EP signal fetures can be obtained and analysed quantitatively at the levels of resolution. In the results, we analyze the VEP signal with the wavelet transform.

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