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Efficient preprocessing technique for real-time lossless EEG compression

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2 Author(s)
Srinivasan, K. ; Dept. of Appl. Mech., Indian Inst. of Technol. Madras, Chennai, India ; Ramasubba Reddy, M.

An efficient preprocessing technique of arranging an electroencephalogram (EEG) signal in matrix form is proposed for real-time lossless EEG compression. The compression algorithm consists of an integer lifting wavelet transform as the decorrelator with set partitioning in hierarchical trees as the source coder. Experimental results show that the preprocessed EEG signal gave improved rate-distortion performance, especially at low bit rates, and less encoding delay compared to the conventional one-dimensional compression scheme.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 1 )