Interactive biosignal analysis and classification

Harri Siirtola, Jorge Avalos-Salguero, Kirsi Penttinen, Katriina Aalto-Setala, Martti Juhola

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

We often encounter experimental results that are difficult to quantify although the visual recognition of a phenomenon is apparent. We are able to detect patterns and features with our vision that are complex to specify algorithmically. This is because our brain has evolved into a powerful pattern matching machine. One important class of measurement results in medical research are signals that describe a cycling pattern of some phenomenon. In this work, we developed a software tool, Anomaly Explorer, to assist in classification of Ca2+ signals emitted by cardiomyocytes. Anomaly Explorer was designed and implemented to analyze and classify Ca2+ signals with criteria similar to the criteria used by laboratory personnel. The software tool is based on interactive visualization with a direct manipulation user interface. Our Anomaly Explorer has proven to be a valuable tool as it makes the analysis faster, more accurate, and person-independent. The definition of signal anomalies in terms of visual properties is more flexible than numerical or analytical specification. Our approach is not limited to the Ca2+ signal analysis. The anomaly types are domain-specific, but the interaction and visualization ideas can be applied in any signal analysis problem.

Original languageEnglish
Title of host publicationProceedings - 2014 18th International Conference on Information Visualisation: Visualisation, BioMedical Visualization, Visualisation on Built and Rural Environments and Geometric Modelling and Imaging, IV 2014
EditorsF.T. Marchese, U. Cvek, M. Trutschl, G. Grinstein, A. Ursyn, G. Venturini, T.G. Wyeld, S. Kenderdine, F. Bouali, M. Sarfraz, E. Banissi, NA Bannatyne M.W.McK., V. Geroimenko
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages327-332
Number of pages6
ISBN (Electronic)978-1-4799-4103-2
DOIs
Publication statusPublished - 2014
Publication typeA4 Article in a conference publication
Event2014 18th International Conference on Information Visualisation: Visualisation, BioMedical Visualization, Visualisation on Built and Rural Environments and Geometric Modelling and Imaging, IV 2014 -
Duration: 1 Jan 2014 → …

Conference

Conference2014 18th International Conference on Information Visualisation: Visualisation, BioMedical Visualization, Visualisation on Built and Rural Environments and Geometric Modelling and Imaging, IV 2014
Period1/01/14 → …

Keywords

  • and cybernetics
  • biomedical signals
  • data visualization
  • man
  • user interfaces

Publication forum classification

  • Publication forum level 1

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