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

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:
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.

 0
ggyyree (110)
8/25/2011 9:46:27 AM
comp.soft-sys.matlab 211266 articles. 25 followers. lunamoonmoon (257) is leader.

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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.

 0
ggyyree (110)
8/25/2011 10:01:26 AM
If you already have the displacement field and want to plot it, take a look at QUIVER command.

Bruno

 0
b.luong5955 (6401)
8/25/2011 10:01:26 AM
"Bruno Luong" <b.luong@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.

 0
ggyyree (110)
8/25/2011 10:08:25 AM
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>...
> 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:
> 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.

 0
anusha (65)
8/7/2012 2:49:14 AM

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