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Book ChapterDOI

Wavelet-Domain L ∞ -Constrained Two-Stage Near-Lossless EEG Coder

K.N. Srinivasan, +1 more
- Vol. 70, pp 76-80
TLDR
Two-stage coder based near-lossless compression of Electroencephalogram (EEG) consists of wavelet based lossy coding layer (until bitplane n d ) followed by entropy coding of the wavelet domain residuals.
Abstract
In this paper, a two-stage coder based near-lossless compression of Electroencephalogram (EEG) is discussed. It consists of wavelet based lossy coding layer (until bitplane n d ) followed by entropy coding of the wavelet domain residuals. L ∞ -error bound is fixed in wavelet domain and the corresponding time-domain absolute error variation is studied. Studies show that intermediate demarcating bit-planes (n d ) register a higher compression and gives a nearly constant time-domain error. Both the normal and epileptic EEG registered a comparable compression performance.

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Citations
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Journal ArticleDOI

Retained energy-based coding for EEG signals.

TL;DR: A new compression algorithm specifically designed to encode electroencephalographic (EEG) signals is proposed and the results show that the compression scheme yields better compression than other reported methods.
Journal ArticleDOI

Analysis of tractable distortion metrics for EEG compression applications.

TL;DR: The experiments conducted in this paper show that the use of the root-mean-square error as target parameter in EEG compression allows both clinicians and scientists to infer whether coding error is clinically acceptable or not at no cost for the compression ratio.
References
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Journal ArticleDOI

Wavelet Transforms That Map Integers to Integers

TL;DR: Two approaches to build integer to integer wavelet transforms are presented and the precoder of Laroiaet al., used in information transmission, is adapted and combined with expansion factors for the high and low pass band in subband filtering.
Journal ArticleDOI

Wavelet compression of ECG signals by the set partitioning in hierarchical trees algorithm

TL;DR: A wavelet electrocardiogram (ECG) data codec based on the set partitioning in hierarchical trees (SPIHT) compression algorithm is proposed and is significantly more efficient in compression and in computation than previously proposed ECG compression schemes.
Journal ArticleDOI

EEG data compression techniques

TL;DR: Electroencephalograph (EEG) and Holter EEG data compression techniques which allow perfect reconstruction of the recorded waveform from the compressed one are presented and discussed and the adoption of a collapsed Huffman tree for the encoding/decoding operations is shown.
Journal ArticleDOI

Context-based lossless and near-lossless compression of EEG signals

TL;DR: This work investigates a near lossless compression technique that gives quantitative bounds on the errors introduced during compression and finds that such a technique gives significantly higher compression ratios than lossy compression.
Journal ArticleDOI

Performance Evaluation of Neural Network and Linear Predictors for Near-Lossless Compression of EEG Signals

TL;DR: 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.
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