대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

이동형 Tele-cardiology 시스템 적용을 위한 최저 지연을 가진 웨이브릿 압축 기법

Wavelet Compression Method with Minimum Delay for Mobile Tele-cardiology Applications

  • 김병수 (연세대학 의학공학교실) ;
  • 유선국 (연세대학 의학공학교실) ;
  • 이문형 (연세대학 세브란스 심장내과)
  • 발행 : 2004.11.01
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초록

A wavelet based ECG data compression has become an attractive and efficient method in many mobile tele-cardiology applications. But large data size required for high compression performance leads a serious delay. In this paper, new wavelet compression method with minimum delay is proposed. It is based on deciding the type and compression ratio(CR) of block organically according to the standard deviation of input ECG data with minimum block size. Compression performances of the proposed algorithm for different MIT ECG Records were analyzed comparing other ECG compression algorithm. In addition to the processing delay measurement, compression efficiency and reconstruction sensitivity to error were also evaluated via random noise simulation models. The results show that the proposed algorithm has both lower PRD than other algorithm on same CR and minimum time in the data acquisition, processing and transmission.

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참고문헌

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