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http://dx.doi.org/10.9717/kmms.2011.14.7.884

Detection of the First and Second Heart Sound Using Three-order Shannon Energy Difference  

Lee, G.H. (경북대학교 대학원 의용생체공학과)
Kim, P.U. (경북대학교 대학원 의용생체공학과)
Lee, Y.J. (경북대학교 대학원 의용생체공학과)
Kim, M.N. (경북대학교 의학전문대학원 의공학교실)
Publication Information
Journal of Korea Multimedia Society / v.14, no.7, 2011 , pp. 884-894 More about this Journal
Abstract
We proposed a new algorithm for detection of first(S1) and second heart sound(S2). Many researches for detecting primary components and those algorithms have good performance at normal heart sound, but the performance is degraded at abnormal heart sound which is contain murmurs generated by heart disease. Therefore we proposed the S1, S2 detection algorithm using three-order Shannon energy difference. Using S1, S2's character which has large energy difference than murmurs, it is reduced noise and detected S1, S2. According to simulation results, not only normal heart sound but also abnormal heart sound, the proposed algorithm has better performance than former study at abnormal heart sound.
Keywords
Heart Sound; Shannon Energy; S1, S2 Detection;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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