Otsu's threshold selection method applied in de-noising heart sound of the digital stethoscope record
Paper
Paper/Presentation Title | Otsu's threshold selection method applied in de-noising heart sound of the digital stethoscope record |
---|---|
Presentation Type | Paper |
Authors | Chen, Haoyu (Author) and Gururajan, Raj (Author) |
Editors | Zeng, Dehuai |
Journal or Proceedings Title | Advances in Information Technology and Industry Applications |
Number of Pages | 6 |
Year | 2012 |
Place of Publication | Berlin, Germany |
ISBN | 9783642260001 |
9783642260018 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/978-3-642-26001-8_31 |
Web Address (URL) of Paper | http://www.springerlink.com/content/978-3-642-26000-1/#section=1018889&page=1&locus=11 |
Conference/Event | 2nd International Conference of Electrical and Electronics Engineering (ICEEE 2011) |
Event Details | 2nd International Conference of Electrical and Electronics Engineering (ICEEE 2011) Event Date 01 to end of 02 Dec 2011 Event Location Macau, China |
Abstract | In this paper, an automatic threshold selection for de-noising is presented. The heart sound extracted through an electronic stethoscope is transformed into frequency domain by Fast Fourier Transformation, and then the threshold selection is applied to it, so that unwanted noises can be separated from a combined set of noises. The noise was analysed by applying a random but suitable threshold point, the unwanted noise was eliminated and the sound was reconstructed. The preliminary results indicate that the technique applied is effective in that the reconstructed noise appears to be providing a better quality of heart noise. |
Keywords | heart sound signal; threshold function; de-noising |
ANZSRC Field of Research 2020 | 400308. Medical devices |
401701. Acoustics and noise control (excl. architectural acoustics) | |
320101. Cardiology (incl. cardiovascular diseases) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Information Systems |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q15x4/otsu-s-threshold-selection-method-applied-in-de-noising-heart-sound-of-the-digital-stethoscope-record
1680
total views421
total downloads3
views this month0
downloads this month