Hi Doug, just a very naive question about coordinate change: why do we need the fourth component? I mean, shouldn't be the transformation matrix 3x3 instead of 4x4 for a coordinate change in 3D space? thanks! Gari
On Wed, Sep 11, 2013 at 12:52 AM, Douglas N Greve <gr...@nmr.mgh.harvard.edu > wrote: > Hi Yang, I've computed a matrix that should do the trick. If you are in > matlab, then > > M = [ 0.9975 -0.0073 0.0176 -0.0429 > 0.0146 1.0009 -0.0024 1.5496 > -0.0130 -0.0093 0.9971 1.1840 > 0 0 0 1.0000] > P305 = [MNI305x MNI305y MNI305z 1]'; > P152 = M*P305 > > Can you give this a shot and see if it makes sense? It will probably be > hard to tell since the matrix is pretty close to identity. > > doug > > > > > On 09/10/2013 05:17 PM, Yang, Daniel wrote: > > Thanks, Doug. I am really hoping to get MNI152 (because I also use > > fsl). Are MNI305 and MNI152 the same? How can I obtain MNI152 > coordinates? > > > > Best, > > Daniel > > > > -- > > Yung-Jui "Daniel" Yang, PhD > > Postdoctoral Researcher > > Yale Child Study Center > > New Haven, CT > > (203) 737-5454 > > > > On 9/10/13 5:14 PM, "Douglas N Greve" <gr...@nmr.mgh.harvard.edu > > <mailto:gr...@nmr.mgh.harvard.edu>> wrote: > > > > > > It is an estimate of Tal coords from the MNI305. See > > > > http://imaging.mrc-cbu.cam.ac.uk/imaging/MniTalairach > > > > If you want MNI305, run mri_surfcluster with --nofixmni > > > > doug > > > > > > > > On 09/10/2013 05:08 PM, Yang, Daniel wrote: > > > > Hi all, > > > > The output of mri_surfcluster --sum shows TalX TalY TalZ. I am > > wondering if they are based on the Talairach system or some > > sort of > > MNI-Talairach system. If the latter, can you tell me something > > more > > about it? Like a webpage that describes its relationship > > between the > > MNI152 or the Talairach system? > > > > I find it confusing because mri_surfcluster said: "INFO: > > fixing MNI > > talairach coordinates" > > > > Thanks! > > Daniel > > > > -- > > Yung-Jui "Daniel" Yang, PhD > > Postdoctoral Researcher > > Yale Child Study Center > > New Haven, CT > > (203) 737-5454 > > > > > > _______________________________________________ > > Freesurfer mailing list > > Freesurfer@nmr.mgh.harvard.edu > > <mailto:Freesurfer@nmr.mgh.harvard.edu> > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > > > > -- > > Douglas N. Greve, Ph.D. > > MGH-NMR Center > > gr...@nmr.mgh.harvard.edu <mailto:gr...@nmr.mgh.harvard.edu> > > Phone Number: 617-724-2358 > > Fax: 617-726-7422 > > > > Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting > > FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 > > www.nmr.mgh.harvard.edu/facility/filedrop/index.html > > Outgoing: > > ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > > > _______________________________________________ > > Freesurfer mailing list > > Freesurfer@nmr.mgh.harvard.edu <mailto: > Freesurfer@nmr.mgh.harvard.edu> > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > > > > The information in this e-mail is intended only for the person to > > whom it is > > addressed. If you believe this e-mail was sent to you in error and > > the e-mail > > contains patient information, please contact the Partners > > Compliance HelpLine at > > http://www.partners.org/complianceline . If the e-mail was sent to > > you in error > > but does not contain patient information, please contact the > > sender and properly > > dispose of the e-mail. > > > > > > -- > Douglas N. Greve, Ph.D. > MGH-NMR Center > gr...@nmr.mgh.harvard.edu > Phone Number: 617-724-2358 > Fax: 617-726-7422 > > Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting > FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 > www.nmr.mgh.harvard.edu/facility/filedrop/index.html > Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >
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