Citation

Sriraam, N. and Eswaran, C. (2008) Performance Evaluation of Neural Network and Linear Predictors for Near-Lossless Compression of EEG Signals. IEEE Transactions on Information Technology in Biomedicine, 12 (1). pp. 87-93. ISSN 1089-7771

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Abstract

This paper presents a comparison of the performances of neural network and linear predictors for near-lossless compression of EEG signals. Three neural network predictors, namely, single-layer perceptron (SLP), multilayer perceptron (MLP), and Elman network (EN), and two linear predictors, namely, autoregressive model (AR) and finite-impulse response filter (FIR) are used. For all the predictors, uniform quantization is applied on the residue signals obtained as the difference between the original and the predicted values. The maximum allowable reconstruction error delta is varied to determine the theoretical bound delta(0) for near-lossless compression and the corresponding bit rate r(p). It is shown that among all the predictors, the SLP yields the best results in achieving the lowest values for delta(0) and r(p). The corresponding values of the fidelity parameters, namely, percent of root-mean-square difference, peak SNR and cross correlation are also determined. A compression efficiency of 82.8 % is achieved using the SLP with a near-lossless bound delta(0) = 3, with the diagnostic quality of the reconstructed EEG signal preserved. Thus, the proposed near-lossless scheme facilitates transmission of real time as well as offline EEG signals over network to remote interpretation center economically with less bandwidth utilization compared to other known lossless and near-lossless schemes.

Item Type:	Article
Subjects:	T Technology > T Technology (General) Q Science > QA Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	19 Sep 2011 07:55
Last Modified:	13 Feb 2014 08:16
URII:	http://shdl.mmu.edu.my/id/eprint/2813

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