Essays about: "Hamid Behjat"

Found 1 essay containing the words Hamid Behjat.

  1. 1. Statistical Parametric Mapping of fMRI data using Spectral Graph Wavelets

    University essay from Medicinsk informatik; Tekniska högskolan

    Author : Hamid Behjat; [2012]
    Keywords : Statistical parametric mapping; fMRI; Spectral graph theory; Graph wavelet transform; Wavelet thresholding;

    Abstract : In typical statistical parametric mapping (SPM) of fMRI data, the functional data are pre-smoothed using a Gaussian kernel to reduce noise at the cost of losing spatial specificity. Wavelet approaches have been incorporated in such analysis by enabling an efficient representation of the underlying brain activity through spatial transformation of the original, un-smoothed data; a successful framework is the wavelet-based statistical parametric mapping (WSPM) which enables integrated wavelet processing and spatial statistical testing. READ MORE