[Insight-users] help for Registration

[Mohammad Mayya]

Hello Massi,

Can you tell what do you want the registration for? Are the two images from
the same modality? That may help narrowing the choice.

Anyway, since you reformulated your problem as geometric, you are left with
Landmarks-based methods which are the classic example of geometric-driven
registration. In such a setting, a number of anatomical key points
(landmarks) are identified both in the source and the target images and a
transformation that aims to maximize a similarity metric usually based on
the distance between these structures is to be recovered.
The main limitation of these methods related to the selection and
extraction of landmarks, while their main strength is the simplicity of the
optimization process.
Nevertheless, when dealing with intensities (ex. images from the same
modality), methods that seek for “visual” correspondences between the
source and the target image can be considered. Here an explicit photometric
correspondence of the image intensities is to be identified.

Mhd
On Thu, Sep 13, 2012 at 6:23 PM, Massi <Massinissa.Bandou at usherbrooke.ca>wrote:

> Hello!!!
>
> I never done any image registration before, it's my first time. I have read
> a little bit about Paul Viola & how he focused on the mutual information
> between the source and the target image... pretty complicated.
> Actually, I have a contour of an object (.mesh) and PET images (dicom) of
> the same object. I want to coregistrate them and I don't know how and where
> to start.
>
> My first Idea was to generate a volume from the PET images, extract the
> surface and mesh it. after, I hope to find something how to coregistrate a
> mesh file with another mesh file!
>
>
> Please any advice or hint will be welcomed!!!
>
> Thx
>
> Massi
>
>
>
> --
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