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Blind source separation to extract foetal heart sounds from noisy abdominal phonograms: a single channel method
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Jimenez-Gonzalez, Aida and James, C. J. (2008) Blind source separation to extract foetal heart sounds from noisy abdominal phonograms: a single channel method. In: 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP), Santa Margherita Ligure, Italy, Jul 14-16, 2008. Published in: Proceedings of the 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP) pp. 13-16. doi:10.1049/cp:20080431 ISSN 0537-9989, ISBN: 978-0-86341-934-8.
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Abstract
A method for extracting foetal heart sounds (FHS) from noisy single channel abdominal phonograms is proposed. First, an appropriate matrix of delays is constructed; then multiple independent components are calculated using FastICA; finally, components are projected back onto the measurement space and those associated to FHS are subjectively selected. Three single channel phonograms, obtained from different subjects were analysed. Preliminary results are promising and showed successfully extractions of FHS (S1, S2). Future work will increase the number of subjects, evaluate the extraction quality, look for more information about foetal well-being, find an objective way to select FHS, and explore ICA implementations that utilise temporal structure such as Temporal Decorrelation source SEParation (TDSEP).
Item Type: | Conference Item (Paper) | ||||
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Subjects: | R Medicine > RG Gynecology and obstetrics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Proceedings of the 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP) | ||||
Publisher: | Institute of Engineering and Technology | ||||
ISSN: | 0537-9989, ISBN: 978-0-86341-934-8 | ||||
Official Date: | 2008 | ||||
Dates: |
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Page Range: | pp. 13-16 | ||||
DOI: | 10.1049/cp:20080431 | ||||
Status: | Not Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Consejo Nacional de Ciencia y TecnologÃa (Mexico) [Mexican Council for Science and Technology] (CONACYT) | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP) | ||||
Type of Event: | Conference | ||||
Location of Event: | Santa Margherita Ligure, Italy | ||||
Date(s) of Event: | Jul 14-16, 2008 |
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