Fetal heart rate deceleration detection from the discrete cosine transform spectrum

Philip Warrick; Doina Precup; Emily Hamilton; Robert Kearney

doi:10.1109/IEMBS.2005.1615743

Fetal heart rate deceleration detection from the discrete cosine transform spectrum

Conf Proc IEEE Eng Med Biol Soc. 2005:2005:5555-8. doi: 10.1109/IEMBS.2005.1615743.

Authors

Philip Warrick¹, Doina Precup, Emily Hamilton, Robert Kearney

Affiliation

¹ Department of Biomedical Engineering, McGill University, Montreal, Quebec, Canada.

PMID: 17281513
DOI: 10.1109/IEMBS.2005.1615743

Abstract

Automated detection of decelerations in fetal heart rate (FHR) signals can be posed as a problem of signal detection in the presence of noise. We present an algorithm that adaptively selects the resolution of analysis and uses the discrete cosine transform (DCT) to describe the spectrum at short-term and longer-term scales. In so doing we generate near-orthogonal and scale-invariant features that are presented to a feedforward neural network for classification.