I encourage you to look through the SPM manual
John Ashburner's review article: Ashburner J, Friston KJ (2000) Voxel-based
morphometry - The Methods. Neuroimage 11:805-821.
and the SPM code
for more information about he actual algorithms implemented in spm for
normalization and smoothing.
> -----Original Message-----
> From: SPM (Statistical Parametric Mapping)
> [mailto:[log in to unmask]] On Behalf Of Linda Seltzer
> Sent: Wednesday, April 30, 2008 8:53 AM
> To: [log in to unmask]
> Subject: Re: [SPM] Ask the algoritm of modulation in VBM
> I do not have the book here with me, but I think that
> Mathematical Methods for Physicists by Arfken provides the
> derivations you are looking for. The older editions of the
> book are fine.
> Linda Seltzer
> UC Davis
> > Hi,professor.
> > I am a newer. Now I am studying the optional step in VBM-
> > modulate.I know the aim isto preserve the volume .And the
> > equal to the voxel value multiply the Jacobian
> determinants.I want to
> > ask the
> > determinants is contain the information of rotation or
> not.And I don't
> > the process of derive of Jacobian determinants .Can you tell me the
> > algorithm of modulation.
> > Thanks.
> > ---------------------------------
> > ÑÅ»¢ÓÊÏä£¬ÄúµÄÖÕÉúÓÊÏä£¡