Time-frequency characterization of tri-axial accelerometer data for fetal movement detection

M. S. Khlif, B. Boashash, S. Layeghy, T. Ben-Jabeur, M. Mesbah, C. East, P. Colditz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Monitoring fetal wellbeing is a significant problem in modern obstetrics. Clinicians have become increasingly aware of the link between fetal activity and its well-being. Using data acquired by accelerometry sensors, we use TFDs such as the spectrogram and modified B distribution (MBD) to characterize fetal movements in the time-frequency (TF) domain. This paper reports a fetal activity detection method based on the root-mean-square (RMS) of time series and evaluates its performance against real-time ultrasound imaging, taken as the gold standard. The evaluation showed better performance with the RMS-based detector as compared to maternal perception. The evaluation also showed that the detector performance is age-dependent and that fetal movement is characterized by different TF morphology. Time-frequency distributions (TFDs) with better resolution such as MBD are investigated for TF-based techniques for the detection of fetal movements.

Original languageEnglish
Title of host publicationIEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2011
Pages466-471
Number of pages6
DOIs
Publication statusPublished - 2011
Event11th IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2011 - Bilbao, Spain
Duration: Dec 14 2011Dec 17 2011

Other

Other11th IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2011
CountrySpain
CityBilbao
Period12/14/1112/17/11

Keywords

  • Accelerometer
  • detection
  • fetal movement
  • modified B distribution
  • quadratic TFDs
  • Spectrogram
  • time-frequency analysis

ASJC Scopus subject areas

  • Information Systems
  • Signal Processing

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  • Cite this

    Khlif, M. S., Boashash, B., Layeghy, S., Ben-Jabeur, T., Mesbah, M., East, C., & Colditz, P. (2011). Time-frequency characterization of tri-axial accelerometer data for fetal movement detection. In IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2011 (pp. 466-471). [6151607] https://doi.org/10.1109/ISSPIT.2011.6151607