User profiles for John Ashburner
John AshburnerProfessor of Imaging Science, Wellcome Centre for Human Neuroimaging, UCL Institute of Verified email at ucl.ac.uk Cited by 99943 |
A fast diffeomorphic image registration algorithm
J Ashburner - Neuroimage, 2007 - Elsevier
This paper describes DARTEL, which is an algorithm for diffeomorphic image registration. It
is implemented for both 2D and 3D image registration and has been formulated to include …
is implemented for both 2D and 3D image registration and has been formulated to include …
Spatial registration and normalization of images
This paper concerns the spatial and intensity transformations that map one image onto
another. We present a general technique that facilitates nonlinear spatial (stereotactic) …
another. We present a general technique that facilitates nonlinear spatial (stereotactic) …
Voxel-based morphometry—the methods
J Ashburner, KJ Friston - Neuroimage, 2000 - Elsevier
At its simplest, voxel-based morphometry (VBM) involves a voxel-wise comparison of the
local concentration of gray matter between two groups of subjects. The procedure is relatively …
local concentration of gray matter between two groups of subjects. The procedure is relatively …
Evaluation of 14 nonlinear deformation algorithms applied to human brain MRI registration
All fields of neuroscience that employ brain imaging need to communicate their results with
reference to anatomical regions. In particular, comparative morphometry and group analysis …
reference to anatomical regions. In particular, comparative morphometry and group analysis …
Navigation-related structural change in the hippocampi of taxi drivers
Structural MRIs of the brains of humans with extensive navigation experience, licensed
London taxi drivers, were analyzed and compared with those of control subjects who did not …
London taxi drivers, were analyzed and compared with those of control subjects who did not …
[BOOK][B] Statistical parametric mapping: the analysis of functional brain images
In an age where the amount of data collected from brain imaging is increasing constantly, it
is of critical importance to analyse those data within an accepted framework to ensure proper …
is of critical importance to analyse those data within an accepted framework to ensure proper …
Unified segmentation
J Ashburner, KJ Friston - neuroimage, 2005 - Elsevier
A probabilistic framework is presented that enables image registration, tissue classification,
and bias correction to be combined within the same generative model. A derivation of a log-…
and bias correction to be combined within the same generative model. A derivation of a log-…
A voxel-based morphometric study of ageing in 465 normal adult human brains
Voxel-based-morphometry (VBM) is a whole-brain, unbiased technique for characterizing
regional cerebral volume and tissue concentration differences in structural magnetic …
regional cerebral volume and tissue concentration differences in structural magnetic …
Nonlinear spatial normalization using basis functions
J Ashburner, KJ Friston - Human brain mapping, 1999 - Wiley Online Library
We describe a comprehensive framework for performing rapid and automatic nonlabel‐based
nonlinear spatial normalizations. The approach adopted minimizes the residual squared …
nonlinear spatial normalizations. The approach adopted minimizes the residual squared …
How to correct susceptibility distortions in spin-echo echo-planar images: application to diffusion tensor imaging
Diffusion tensor imaging is often performed by acquiring a series of diffusion-weighted spin-echo
echo-planar images with different direction diffusion gradients. A problem of echo-…
echo-planar images with different direction diffusion gradients. A problem of echo-…