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A signal estimation approach to functional MRI
V Solo1, P Purdon, R Weisskoff
1School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, Australia.
IEEE Transactions on Medical Imaging
|April 11, 2001
Abstract:
In the last half decade, fast methods of magnetic resonance imaging have led to the possibility, for the first time, of non-invasive dynamic brain imaging. This has led to an explosion of work in the Neurosciences. From a signal processing viewpoint the problems are those of nonlinear spatio-temporal system identification. In this paper, we develop new methods of identification using novel spatial regularization. We also develop a new model comparison technique and use that to compare our method with existing techniques on some experimental data.