Rotation space random fields with an application to fMRI data
The problem of testing for a signal with unknown location and scale in a Gaussian random field defined on \(R^2\) is investigated. The test statistic is the maximum over all filter's rotations and scales of the rotation space field. The Euler characteristic and the tubes approaches are presented. The obtained results are applied to the problem of searching for activation in brain images.
scientific article; zbMATH DE number 2067666
scientific article