International Journal of Alzheimer’s Disease / 2011 / Article / Fig 2

Research Article

Slowing and Loss of Complexity in Alzheimer's EEG: Two Sides of the Same Coin?

Figure 2

Lossless EEG compression algorithms apply wavelet transforms followed by Set Partitioning in Hierarchical Trees (SPIHT).
(a) Algorithm A: EEG compression using 1D SPIHT
(b) Algorithm B: EEG compression using 2D SPIHT
(c) Algorithm C: EEG compression using 2D SPIHT (at optimal rate ), followed by arithmetic coding for the residuals

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