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المؤلفKhlif, M.S.
المؤلفBoashash, B
المؤلفLayeghy, S
المؤلفBen-Jabeur, T
المؤلفMesbah, M
المؤلفEast, C
المؤلفColditz, P
تاريخ الإتاحة2012-06-18T06:52:20Z
تاريخ النشر2011
اسم المنشورIEEE Int. Symp. on Signal Processing and Information Technology (ISSPIT) 2011
الاقتباس[C-2] M.S. Khlif, B. Boashash, S. Layeghy, T. Ben-Jabeur, M. Mesbah, C. East and P. Colditz, “Time-frequency characterization of tri-axial accelerometer data for fetal movement detection,” in Proc. 2011 IEEE Int. Symp. on Signal Processing and Information Technology (ISSPIT), pp. 466-471, Bilbao, Spain, Dec. 2011.
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/ISSPIT.2011.6151607
معرّف المصادر الموحدhttp://hdl.handle.net/10576/10842
الوصفThis paper presents the first preliminary results of an accelerometer-based fetal movement detector using the RMS of acceleration magnitude for identifying episodes of fetal activity and episodes of inactivity so as to allow timely clinical intervention. (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated).
الملخصMonitoring 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.
اللغةen
الناشرIEEE
الموضوعAccelerometer
detection
fetal movement
time-frequency analysis
quadratic TFDs
Spectrogram
modified B distribution
Accelerometer
detection
fetal movement
time-frequency analysis
quadratic TFDs
Spectrogram
modified B distribution
FetMov signals
detection
العنوانTime-Frequency Characterization of Tri-Axial Accelerometer Data for Fetal Movement Detection
النوعConference Paper
dc.accessType Abstract Only


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