How to display a 'displacement field' or 'displacement vector' in Matlab?

[Aaronne]

Hi All,

I am doing a non-rigid image registration project, and just came across a question that how to display a 'displacement field' or 'displacement vector' in Matlab?

I found some similar question at:
http://www.mathworks.com.au/matlabcentral/answers/8030-displacement-vector
without a good solution.

Basically, we have got two two images (2D or 3D) in same size. And by using the registration we can get a 'displacement field' which will transform the coordinates of one image to another. Examples of the graph of the 'displacement field' is here in 2D:

http://i56.tinypic.com/13z2wlj.png
[IMG]http://i56.tinypic.com/13z2wlj.png[/IMG]

and in 3D:
http://www.dir-lab.com/Templates/ReferenceData.html

I am not asking a complete set of Matlab codes or implementation. But could you guys give me any ideas where should I start or maybe some existing codes I can borrow to develop my own.

Thanks very much!
Aaronne.

[Aaronne]

Just by another quick search, it seems here is a good solution:
http://www.mathworks.com/matlabcentral/fx_files/27047/2/content/doc/html/BsplineDoc.html

Any other better ideas? Cheers,
Aaronne.

[Bruno Luong]

If you already have the displacement field and want to plot it, take a look at QUIVER command.

Bruno

[Aaronne]

"Bruno Luong" <b.l...@fogale.findmycountry> wrote in message <j356hm$36u$1...@newscl01ah.mathworks.com>...

> If you already have the displacement field and want to plot it, take a look at QUIVER command.
>
> Bruno

Cool, that's what I thought. Thanks.

[Anusha]

Hi Aaronne,

Do u manage to solve this prob? Im looking on how to display the displacement field too. Hope you can guide me. Thanks.

Anusha



"Aaronne" wrote in message <j355lj$pt$1...@newscl01ah.mathworks.com>...