Details

Autor(en) / Beteiligte

• Trigano, T.
• Kolesnikov, V.
• Luengo, D.
• Artes-Rodriguez, A.

Titel

Grouped sparsity algorithm for multichannel intracardiac ECG synchronization

Ist Teil von

• 2014 22nd European Signal Processing Conference (EUSIPCO), 2014, p.1537-1541

Ort / Verlag

EURASIP

Erscheinungsjahr

2014

Quelle

IEL

Beschreibungen/Notizen

• In this paper, a new method is presented to ensure automatic synchronization of intracardiac ECG data, yielding a three-stage algorithm. We first compute a robust estimate of the derivative of the data to remove low-frequency perturbations. Then we provide a grouped-sparse representation of the data, by means of the Group LASSO, to ensure that all the electrical spikes are simultaneously detected. Finally, a post-processing step, based on a variance analysis, is performed to discard false alarms. Preliminary results on real data for sinus rhythm and atrial fibrillation show the potential of this approach.