[ITK-users] Pointset registration

[Matias Montroull]

Thanks.

Here's another question, it seems I need 12 points to perform the
registration and obtain the matrix, now, the results I'm getting are not
very good. We have the algorithm programmed manually (not using ITK) and
when we compare the results are different (way too different).
I just pulled the example and modified to 3 dimensions and changed the
translationtransform to an affine transform. Is there an example using
Affine that I can check? I'm thinking is not just changing the transform,
there may be other variables I need to tweak..
Matias.

El mié., 11 de nov. de 2015 a la(s) 5:51 p. m., Dženan Zukić <
dzenanz at gmail.com> escribió:

> Nowhere, which means it's the >> operator's standard white-space
> separators (spaces, tabs, newlines).
>
> On Wed, Nov 11, 2015 at 3:03 PM, Matias Montroull <matimontg at gmail.com>
> wrote:
>
>> by the way, where in the code is the space separator specified?
>>
>> El mié., 11 de nov. de 2015 a la(s) 5:02 p. m., Matias Montroull <
>> matimontg at gmail.com> escribió:
>>
>>> that worked! Thanks for the advise, I was under the impression that
>>> points needed to be separated by ";"
>>> Thanks again
>>>
>>> El mié., 11 de nov. de 2015 a la(s) 5:00 p. m., Dženan Zukić <
>>> dzenanz at gmail.com> escribió:
>>>
>>>> By looking at the code, the numbers should be separated by space, not
>>>> semicolon. Can you try that?
>>>>
>>>> HTH
>>>>
>>>> On Wed, Nov 11, 2015 at 2:51 PM, Matias Montroull <matimontg at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Dženan, thanks for the suggestion, I tried that example and I
>>>>> think I'm missign something as my disk drive became crazy.
>>>>> I basically created 2 txt files with a set of 4 points each in this
>>>>> format:
>>>>> -0.585938;92.406328;38.200
>>>>> 44.7654;52.73442;61.000
>>>>> -53.5;49.218792;68.200
>>>>> -1.757814;81.445382;70.600
>>>>>
>>>>> second file has the same format but different numbers of course.
>>>>>
>>>>> Is there anything wrong with how I entered the point sets in both
>>>>> files?
>>>>>
>>>>> As you can see it is 3 points per line separated by this character ";"
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Matias.
>>>>>
>>>>>
>>>>> El mar., 10 de nov. de 2015 a la(s) 6:16 p. m., Dženan Zukić <
>>>>> dzenanz at gmail.com> escribió:
>>>>>
>>>>>> Have you seen these two examples:
>>>>>>
>>>>>> http://www.itk.org/Doxygen/html/Examples_2RegistrationITKv3_2IterativeClosestPoint3_8cxx-example.html
>>>>>>
>>>>>> http://www.itk.org/Doxygen/html/Examples_2RegistrationITKv4_2IterativeClosestPoint3_8cxx-example.html
>>>>>>
>>>>>> HTH
>>>>>>
>>>>>> On Tue, Nov 10, 2015 at 3:18 PM, Matias Montroull <
>>>>>> matimontg at gmail.com> wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have 2 sets of points (one is points on an image and another one
>>>>>>> is points on a NDI tracker) and I need to obtain the transformation matrix.
>>>>>>> What would be the best method? I'm currently using a Solver but I'd like to
>>>>>>> implement this using ITK and better if it is SimpleITK.
>>>>>>>
>>>>>>> Thank you!
>>>>>>>
>>>>>>> Matias.
>>>>>>> --
>>>>>>> Matias
>>>>>>>
>>>>>>> _____________________________________
>>>>>>> Powered by www.kitware.com
>>>>>>>
>>>>>>> Visit other Kitware open-source projects at
>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>
>>>>>>> Kitware offers ITK Training Courses, for more information visit:
>>>>>>> http://www.kitware.com/products/protraining.php
>>>>>>>
>>>>>>> Please keep messages on-topic and check the ITK FAQ at:
>>>>>>> http://www.itk.org/Wiki/ITK_FAQ
>>>>>>>
>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>> http://public.kitware.com/mailman/listinfo/insight-users
>>>>>>>
>>>>>>>
>>>>>> --
>>>>> Matias
>>>>>
>>>>
>>>> --
>>> Matias
>>>
>> --
>> Matias
>>
>
> --
Matias
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/insight-users/attachments/20151111/b30e16b5/attachment.html>