Anisotropic 2-D and 3-D averaging of fMRI signals.

A novel method for denoising functional magnetic resonance imaging temporal signals is presented in this note. The method is based on progressively enhancing the temporal signal by means of adaptive anisotropic spatial averaging. This average is based on a new metric for comparing temporal signals corresponding to active fMRI regions. Examples are presented both for simulated and real two and three-dimensional data. The software implementing the proposed technique is publicly available for the research community.

Full Text

Duke Authors

Cited Authors

  • Solé, AF; Ngan, SC; Sapiro, G; Hu, X; López, A

Published Date

  • February 2001

Published In

Volume / Issue

  • 20 / 2

Start / End Page

  • 86 - 93

PubMed ID

  • 11321593

International Standard Serial Number (ISSN)

  • 0278-0062

Digital Object Identifier (DOI)

  • 10.1109/42.913175

Language

  • eng