مشاهده مشخصات مقاله
Sparse Modeling of Heart Sounds and Murmurs based on Orthogonal Matching Pursuit
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نویسنده (ها) |
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Sepideh Jabbari
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Hassan Ghassemian
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مربوط به کنفرانس |
چهاردهمین کنفرانس بینالمللی سالانه انجمن کامپیوتر ایران |
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چکیده |
In this paper, we address the Heart Sound signal
modeling problem. The approach taken is based on
sparse and redundant representations on an
overcomplete dictionary. We apply matching pursuit
(MP) and orthogonal matching pursuit (OMP) on two
sets of normal and pathological phonocardiograms
(PCGs). The dictionary includes classical Gabor
wavelets or time-frequency atoms which are the
product of a sinusoid and a Gaussian window function.
The normalized root-mean-square error (NRMSE) was
computed between the original and the reconstructed
signals. The results show that the OMP method is very
suitable to the transient and complex properties of the
PCG’s, as it yielded excellent NRMSE’s around 1.61%
for normal sounds and 5.19% for pathological
murmurs. |
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قیمت |
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برای اعضای سایت : ۱٠٠,٠٠٠ ریال
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برای دانشجویان عضو انجمن : ۲٠,٠٠٠ ریال
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برای اعضای عادی انجمن : ۴٠,٠٠٠ ریال
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خرید مقاله
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