'[vtkusers] vtkIterativeClosestPointTransform'

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List:       vtkusers
Subject:    [vtkusers] vtkIterativeClosestPointTransform
From:       jtaclas () bidmc ! harvard ! edu
Date:       2007-11-27 15:09:30
Message-ID: 25A33F7C2B7E2E458182A863929DD9D832D7C3 () EVS7 ! its ! caregroup ! org
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Has anyone used vtkIterativeClosestPointTransform and been able to get =
numerical values out of it?  Namely the transform matrix and the =
distances between points of one data set and their corresponding closest =
points from the other data set.  I have only been able to get an =
identity matrix from the transform, and a negligibly small "mean =
distance between the last two iterations", which suggest I'm doing =
something wrong.  Also, I am unable to get a locator working to find =
these distances.  Visually the registration appears to work, but I =
really need some way to quantify how good this registration is.

Jason

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<P><FONT SIZE=2>Has anyone used vtkIterativeClosestPointTransform and been able to \
get numerical values out of it?&nbsp; Namely the transform matrix and the distances \
between points of one data set and their corresponding closest points from the other \
data set.&nbsp; I have only been able to get an identity matrix from the transform, \
and a negligibly small &quot;mean distance between the last two iterations&quot;, \
which suggest I'm doing something wrong.&nbsp; Also, I am unable to get a locator \
working to find these distances.&nbsp; Visually the registration appears to work, but \
I really need some way to quantify how good this registration is.<BR> <BR>
Jason</FONT>
</P>

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