Removal of eye movement artefacts from single channel recordings of retinal evoked potentials using synchronous dynamical embedding and independent component analysis.
作者： A. C. Fisher , W. El-Deredy , R. P. Hagan , M. C. Brown , P. J. G. Lisboa
DOI: 10.1007/S11517-006-0123-4
关键词:
摘要: A system is described for the removal of eye movement and blink artefacts from single channel pattern reversal electroretinogram recordings very poor signal-to-noise ratios. Artefacts are detected removed by using a blind source separation technique based on jadeR independent component analysis algorithm. The data arranged as series overlapping time-delayed vectors forming dynamical embedding matrix. structure this matrix constrained to phase stimulation epoch: term synchronous coined. novel method marker with non-independent feature employed identify most relevant estimation reconstruction signal recovery. This non-lossy, all underlying being recovered. In synthetic datasets defined noise content in standardised real recordings, performance compared conventional fixed-threshold hard-limit rejection. significant relative improvements achieved when greatest: no improvement demonstrable random only situation.
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