[en] Motivated by population studies of Diffusion Tensor Imaging, the paper investigates the use of mean-based and dispersion-based permutation tests to define and compute the significance of a statistical test for data taking values on nonlinear manifolds. The paper proposes statistical tests that are computationally tractable and geometrically sound for Diffusion Tensor Imaging.
Disciplines :
Mathematics Engineering, computing & technology: Multidisciplinary, general & others Neurology Radiology, nuclear medicine & imaging
Author, co-author :
Collard, Anne ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Systèmes et modélisation
Phillips, Christophe ; Université de Liège - ULiège > GIGA > GIGA Neurosciences - Development in data acquisition & modeling
Sepulchre, Rodolphe ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Systèmes et modélisation
Language :
English
Title :
Statistical tests for group comparison of manifold-valued data
