Second-degree correlation surface features from Optimal Trade-off Synthetic Discriminant Function filters for subject identification using radio frequency cardiosynchronous waveforms

Madhusudan Bhagavatula, Marios Savvides, Vijayakumar Bhagavatula, Robert Friedman, Rebecca Blue, Marc O. Griofa

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

    1 Scopus citations

    Abstract

    Radio Frequency Impedance Interrogation (RFII) measures hemodynamic function via resonance frequency coupling to a hydrophilic protein molecule. The RFII device generates a cardiosynchronous waveform from the identification of blood movement in the time, frequency, and voltage domains. This paper examines RFII signals with the end goal of allowing confirmation of the identity of a subject in an operational setting. An Optimal Trade-off Synthetic Discriminant Function (OT-SDF) was applied to filter the data stream for subject identification. Preliminary results using the OT-SDF Filters demonstrate 63.3% successful single-heartbeat subject identification. However, each individual's correlation surfaces appear to have a unique waveform morphology that is visually distinct from the other individuals in the data set. Improved identification was seen with second-degree correlation suggesting that a second-degree correlation may hold great potential as a biometric feature extraction identifier. We show that using correlation plane outputs as features actually provide a robust biometric identifier and significant higher identification accuracy.

    Original languageEnglish (US)
    Title of host publication2012 IEEE International Conference on Image Processing, ICIP 2012 - Proceedings
    Pages269-272
    Number of pages4
    DOIs
    StatePublished - Dec 1 2012
    Event2012 19th IEEE International Conference on Image Processing, ICIP 2012 - Lake Buena Vista, FL, United States
    Duration: Sep 30 2012Oct 3 2012

    Publication series

    NameProceedings - International Conference on Image Processing, ICIP
    ISSN (Print)1522-4880

    Conference

    Conference2012 19th IEEE International Conference on Image Processing, ICIP 2012
    Country/TerritoryUnited States
    CityLake Buena Vista, FL
    Period9/30/1210/3/12

    Keywords

    • Advanced Correlation Filters
    • Biomedical
    • Biometrics
    • MACE
    • OTSDF

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Information Systems

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