Publication

Activelets: Wavelets for sparse representation of hemodynamic responses

Michaël Unser, Dimitri Nestor Alice Van De Ville, Ildar Khalidov
2011
Journal Articles

Abstract

We propose a new framework to extract the activity-related component in the BOLD functional magnetic resonance imaging (fMRI) signal. As opposed to traditional fMRI signal analysis techniques, we do not impose any prior knowledge of the event timing. Instead, our basic assumption is that the activation pattern is a sequence of short and sparsely distributed stimuli, as is the case in slow event-related fMRI.

Official source

https://infoscience.epfl.ch/entities/publication/d65c462d-764b-4cea-87e7-1bbe4fa3007e

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Activelets: Wavelets for sparse representation of hemodynamic responses

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