Biomedical signal analysis techniques using wavelets

G - Physics – 06 – F

Patent

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G06F 17/00 (2006.01)

Patent

CA 2522732

The invention is directed to signal processing techniques for electrograms or other biomedical signals. In particular, the signal processing techniques make use of wavelet transformation of the electrograms. For example, an electrogram can be represented by a finite set of wavelets which comprise a decomposition of the electrogram in the scale-time domain. In accordance with the invention, wavelet analysis techniques can be used to distinguish specific phenomena in electrograms. For example, wavelet analysis can be used to distinguish between occurrences of large amplitude steep deflections, small amplitude steep deflections, and large amplitude shallow deflections of an electrogram.

L'invention concerne des techniques de traitement de signaux d'électrogrammes ou d'autres signaux biomédicaux. Plus précisément, ces techniques font appel à la transformation d'ondelettes des électrogrammes. Par exemple, un électrogramme peut être représenté par un ensemble fini d'ondelettes comprenant une décomposition de l'électrogramme dans le domaine échelle-temps. Selon l'invention, on peut utiliser des techniques d'analyse d'ondelettes pour séparer des phénomènes spécifiques dans des électrogrammes. Par exemple, on peut utiliser l'analyse d'ondelettes pour séparer des déviations abruptes de grande amplitude, des déviations abruptes de faible amplitude et des déviations peu profondes de grande amplitude d'un électrogramme.

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