Sciweavers

Share
ISBI
2006
IEEE

A fast and robust ODF estimation algorithm in Q-ball imaging

10 years 11 months ago
A fast and robust ODF estimation algorithm in Q-ball imaging
We propose a simple and straightforward analytic solution for the Q-ball reconstruction of the diffusion orientation distribution function (ODF) of the underlying fiber population. First, the signal is modeled with a high order spherical harmonic series using a Laplace-Beltrami regularization method which leads to an elegant mathematical simplification of the FunkRadon transform using the Funk-Hecke formula. In doing so, we obtain a fast and robust model-free ODF approximation. We validate the accuracy of the estimation quantitatively against synthetic data generated from the multi-tensor model and show that our estimated ODF can recover known multiple fiber regions in a biological phantom and in the human brain.
Maxime Descoteaux, Elaine Angelino, Shaun Fitzgibb
Added 20 Nov 2009
Updated 20 Nov 2009
Type Conference
Year 2006
Where ISBI
Authors Maxime Descoteaux, Elaine Angelino, Shaun Fitzgibbons, Rachid Deriche
Comments (0)
books