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A Robust Method for S1/S2 Heart Sounds Detection Without ECG Reference Based on Music Beat Tracking

Barabasa, C, Jafari, M and Plumbley, MD (2012) A Robust Method for S1/S2 Heart Sounds Detection Without ECG Reference Based on Music Beat Tracking In: 10th International Symposium on Electronics and Telecommunications (ISETC), 2012-11-15 - 2012-11-16, Timisoara, ROMANIA.

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Abstract

We present a robust method for the detection of the first and second heart sounds (s1 and s2), without ECG reference, based on a music beat tracking algorithm. An intermediate representation of the input signal is first calculated by using an onset detection function based on complex spectral difference. A music beat tracking algorithm is then used to determine the location of the first heart sound. The beat tracker works in two steps, it first calculates the beat period and then finds the temporal beat alignment. Once the first sound is detected, inverse Gaussian weights are applied to the onset function on the detected positions and the algorithm is run again to find the second heart sound. At the last step s1 and s2 labels are attributed to the detected sounds. The algorithm was evaluated in terms of location accuracy as well as sensitivity and specificity and the results showed good results even in the presence of murmurs or noisy signals.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Barabasa, CUNSPECIFIEDUNSPECIFIED
Jafari, MUNSPECIFIEDUNSPECIFIED
Plumbley, MDm.plumbley@surrey.ac.ukUNSPECIFIED
Date : 1 January 2012
Identification Number : 10.1109/ISETC.2012.6408110
Copyright Disclaimer : © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Contributors :
ContributionNameEmailORCID
UNSPECIFIEDIEEE, UNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords : heart sound; detection; beat tracking; onset detection function
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:21
Last Modified : 30 Nov 2017 09:37
URI: http://epubs.surrey.ac.uk/id/eprint/838883

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