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An optimal dimensionality sampling scheme on the sphere for antipodal signals in diffusion magnetic resonance imaging

Bates, Alice P.;Khalid, Zubair;Kennedy, Rodney


We propose a sampling scheme on the sphere and develop a corresponding spherical harmonic transform (SHT) for the accurate reconstruction of the diffusion signal in diffusion magnetic resonance imaging (dMRI). By exploiting the antipodal symmetry, we design a sampling scheme that requires the optimal number of samples on the sphere, equal to the degrees of freedom required to represent the antipodally symmetric band-limited diffusion signal in the spectral (spherical harmonic) domain. Compared...[Show more]

CollectionsANU Research Publications
Date published: 6/08/2015
Type: Conference paper
DOI: 10.1109/ICASSP.2015.7178094
Access Rights: Open Access


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