[Insight-users] Re: registration with perspective transformation

[Rupert Brooks]

Hi Pavel,

If you mean under a perspective transformation as in from a camera
rotated about its center, then a HomogeneousTransformation may be what
you need.  I wrote such a class a while ago.  I use it a lot, so i
have some confidence in it.

http://hdl.handle.net/1926/493

Note that this transform applies to a plane imaged from two different
camera positions, or a general scene imaged from a camera rotated
about its optical center.  If thats your case, this may help.
Otherwise, there is no easy solution for the case of a set of
arbitrary 3D objects imaged from two different camera positions
because they tend to occlude.

If you use it let me know, or write a review.  I'd be interested in
feedback, good or bad.

Rupert B.

> From: vachis at email.cz
> Subject: [Insight-users] registration with perspective transformation
> To: Insight-users at itk.org
> Message-ID: <1204.2178-17467-2056679647-1202476042 at email.cz>
> Content-Type: text/plain; charset="us-ascii"
>
>
>  Hello ITK fans,
>
>  Does anybody have any experience with a registration under the perspective
>  transformation?
>  I can't find any example of it.
>
>  My task is following:
>  I have two gray images, the second one is acquired under perspective
>  transformation
>  and I need to register them. The both input images are 2 dimensional.
>
-- 
--------------------------------------------------------------
Rupert Brooks
McGill Centre for Intelligent Machines (www.cim.mcgill.ca)
Ph.D Student, Electrical and Computer Engineering
http://www.cyberus.ca/~rbrooks