The graph windowed Fourier transform: a tool to quantify the gyrification of the cerebral cortex

Hamed Rabiei1*,Frederic Richard,Muriel Roth,Jean-Luc Anton,Olivier Coulon,Julien Lefevre
1.Aix-Marseille university
Abstract

Abstract

The Gyrification Index (GI) quantifies the amount of folding of a cortical surface. In this paper, we show the efficiency of spectral analysis to perform such a task, and in particular we explain how the graph windowed Fourier transform can be used as a tool to define new GIs with multiscale properties. We propose two different GIs and study their effect on a set of subjects whose cortical surfaces are modeled with triangular meshes.

Keywords

gyrifiation indexspectral analysiscomputational anatomywindowed Fourier transformLaplace-Beltrami operator
Manuscript
Source Code and Data

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