Format

Send to

Choose Destination
See comment in PubMed Commons below

Application of the Empirical Mode Decomposition to the analysis of esophageal manometric data in gastroesophageal reflux disease.

Author information

1
Sch. of Health Inf. Sci., Texas Univ., Houston, TX 77030, USA.

Abstract

The Empirical Mode Decomposition (EMD) is a general signal processing method for analyzing nonlinear and non-stationary time series. The central idea of EMD is to decompose a time series into a finite and often small number of intrinsic mode functions (IMFs). An IMF is defined as any function having the number of extrema and the number of zero-crossings equal (or differing at most by one), and also having symmetric envelopes defined by the local minima, and maxima respectively. The decomposition procedure is adaptive, data-driven, therefore, highly efficient The EMD is first described, and its performance is validated by simulations. The EMD is then applied to the analysis of esophageal manometric time series in gastroesophageal reflux disease. The results show that the EMD may prove to be a vital technique for the analysis of esophageal manometric data.

PMID:
17271753
DOI:
10.1109/IEMBS.2004.1403234
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for IEEE Engineering in Medicine and Biology Society
    Loading ...
    Support Center