Hi Jesper
Thanks for the prompt reply. Yes your reply justifies what I thought. I was just curious anyway. Got pretty good results using FLIRT though.
Thanks
Truly,
Indika Walimuni
Research Associate
University of Texas Health Science Center
Houston, TX.
________________________________________
From: FSL - FMRIB's Software Library [[log in to unmask]] On Behalf Of Jesper Andersson [[log in to unmask]]
Sent: Tuesday, November 17, 2009 5:44 PM
To: [log in to unmask]
Subject: Re: [FSL] register T1 to T2 using FNIRT
Hi Indika,
I am afraid that fnirt cannot be used for that. Fnirt registers T1-
>T1, T2->T2 etc. It manages to handle small differences in weighting
between the images through its intensity modulation, but they need to
be pretty similar.
Why do you need to register T1 to T2. Fnirt does between subject
registration, and as long as you have one common "contrast" between
the two subjects you can use that for the registration, and then apply
the transform to those other contrasts.
Good Luck Jesper
On 17 Nov 2009, at 23:24, Indika Walimuni wrote:
> Hi FSL experts
> Can I use FNIRT to register a T1 weighted
> image to
> a T2 weighted image ? According to the FNIRT documentation, I got
> the idea
> that FNIRT is sensitive to deference in contrast. If I can indeed
> use what
> kind of intensity modulation options (cost function/s) should I use ?
> Thanks in advance,
> Indika Walimuni
>
