Bispectral analysis in Laser Doppler Flowmetry signal processing

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1997 (EN)
Bispectral analysis in Laser Doppler Flowmetry signal processing (EN)

Alexopoulos, Vassilios (EN)
Kollias, Stefanos (EN)

N/A (EN)

This paper presents an application of higher order statistics and spectra to the problem of Laser Doppler Flowmerry (LDF) for microcirculation monitoring. The proposed signal processing technique computes the bispectra of LDF signals after appropriate pre-processing and extracts features which can be used for classification of the signals to a normal or patient category. Bispectra are defined in terms of the third-order moments of signals and are shown to contain valuable information for the above classification of LDF signals. Experimental studies, including LDF-signals from patients that have different pathologic characteristics are described and results are presented which illustrate the performance of the proposed approach. (EN)


Raynaud's phenomenon (EN)
Bispectral analysis (EN)
Laser Doppler velocimeters (EN)
Flow measurement (EN)
raynaud's phenomenon (EN)
Higher Order Statistics (EN)
Statistical methods (EN)
Experimental Study (EN)
Signal Processing (EN)
Diseases (EN)
laser doppler flowmetry (EN)
Laser Doppler flowmetry (LDF) (EN)
Microcirculation (EN)
Higher Order Spectra (EN)
Spectrum analysis (EN)
Signal processing (EN)
Feature extraction (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (EN)


IEEE, Piscataway, NJ, United States (EN)

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