A CS framework of data reduction is proposed for multichannel ECG (MECG) signals in eigenspace.
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PCA is used to exploit the spatial correlation across the channels resulting into sparse eigenspace signals.
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Using the compressed sensing (CS) approach, the significant eigenspace signals are gone through further dimensionality reduction.
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OMP is used for the CS recovery by exploiting the eigenspace/other domain sparsity of the PCA transformed MECG signals.
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The approach leads to higher compression efficiency, which makes it useful for resource-constrained MECG telemonitoring applications.
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