Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Noise Cancellation of Thoracic Sound Using Wavelet Transform

웨이브렛 변환을 이용한 흉부음의 잡음 제거

  • 황향자 (전북대학교 전자정보공학부) ;
  • 최규훈 (전주공업대학 전자정보과) ;
  • 박기영 (전주공업대학 정보통신과) ;
  • 박강서 (전주예수병원 소아과) ;
  • 김종교 (전북대학교 전자정보공학부)
  • Published : 2003.07.01
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Abstract

In this paper, we present a method which can minimize distortion from desired signal in thoracic sound signal processing. We firstly chose the proper wavelet mother function to reduce noise components. Secondly, we chose a clean thoracic sound, then added Gaussian noise and 3 step(10, 15, 20db) uniform noise to it. Finally, the various wavelet functions are applied for noise cancellation. To evaluate the efficiency of this study, we computed SNR and RSE value. Then we found the optimal mother wavelet function for thoracic sound.

Keywords