Key result
The interval-based LDA algorithm achieved an Equal Error Rate of 0.143% for individual verification using the MIT-BIH ECG database.
An interval-based LDA algorithm using ECG autocorrelation profiles provides highly accurate individual verification with an EER of 0.143%.
This paper presents an interval-based LDA (Linear Discriminant Analysis) algorithm for individual verification using ECG (Electrocardiogram). In this algorithm, at first, unwanted noise and power-line interference are removed from the ECG signal. Then, the autocorrelation profile (ACP) of the ECG signal, which is a mathematical representation of the degree of similarity between a given time series and a lagged version of itself over successive time intervals, is calculated. Finally, the interval-based LDA algorithm is applied to extract unique individual feature vectors that represent distance and angle characteristics on short ACP segments. These feature vectors are used during the processes of enrollment and verification of individual identification. To validate our algorithm, we conducted experiments using the MIT-BIH ECG and achieved EERs (Equal Error Rate) of 0.143%, showing that the proposed algorithm is practically effective and robust in verifying the individual’s identity.
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Yang et al. (2020) studied Individual verification using ECG. Interval-based LDA algorithm was evaluated on Equal Error Rate (EER). The interval-based LDA algorithm achieved an Equal Error Rate of 0.143% for individual verification using the MIT-BIH ECG database.
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