5 papers
Enhanced motor imagery-based EEG classification using a discriminative graph Fourier subspace
Maliheh Miri, Vahid Abootalebi, Hamid Behjat
Dealing with irregular domains, graph signal processing (GSP) has attracted much attention especially in brain imaging analysis. Motor imagery tasks are extensively utilized in bra…
Improved functional MRI activation mapping in white matter through diffusion-adapted spatial filtering
David Abramian, Martin Larsson, Anders Eklund +1
Brain activation mapping using functional MRI (fMRI) based on blood oxygenation level-dependent (BOLD) contrast has been conventionally focused on probing gray matter, the BOLD con…
Spectral Characterization of functional MRI data on voxel-resolution cortical graphs
Hamid Behjat, Martin Larsson
The human cortical layer exhibits a convoluted morphology that is unique to each individual. Conventional volumetric fMRI processing schemes take for granted the rich information p…
Structural mediation of human brain activity revealed by white-matter interpolation of fMRI
Anjali Tarun, Hamid Behjat, David Abramian +1
Anatomy of the human brain constrains the formation of large-scale functional networks. Here, given measured brain activity in gray matter, we interpolate these functional signals…
Interpolation in the Presence of Domain Inhomogeneity
Hamid Behjat, Zafer Doğan, Dimitri Van De Ville +1
Standard interpolation techniques are implicitly based on the assumption that the signal lies on a homogeneous domain. In this letter, the proposed interpolation method instead exp…