[vtkusers] Help for using of cone source

[Rong Xu]

Hi, Anka Kochanowska:

I try to use vtkLandmarkTransform to make a registration, but there is a
problem on the number of points from two point clouds, because the number
of points from vtkConeSource is differenct from the number of polygonal
points in extracted surface of 3D ultrasound data. So I try
vtkIterativeClosestPointTransform method, but I am afraid the number of
points from vtkConeSource is so small that the registration result is not
correct.

Do you have any idea on how to get much more points from vtkConeSource ? I
found the number of points from one cone source is equal to setup number of
resolution. If I want to obtain much more points on inclined plane from
vertex to bottom circle, is there any method ? Or do anyone have any advice
on my problem ?

Thank you!

2012/5/9 Rong Xu <xurong1981 at gmail.com>

> Thank you very much for your very useful advice !
>
> I have tried vtkAppendPolyData to merge 12 vtkConeSource as one polydata
> successfully. Besied, for registration, I will try vtkLandmarkTransform to
> realize it.
>
> Realy appreciate your help!
>
> Best Wishes!
>
>
> 2012/5/9 Anka Kochanowska <pluszcz at gmail.com>
>
>> For registration you could look at vtkLandmarkTransform.
>> Anka
>>
>>
>> On Wed, May 9, 2012 at 9:12 AM, Rong Xu <xurong1981 at gmail.com> wrote:
>>
>>> Dear Everyone :
>>>
>>> In my project, I construct a physical phantom composing of 12 plastic
>>> cones. I used a 3D ultrasound probe to scan this phantom and got its 3D
>>> ultrasound image. In order to find each tip of 12 cones in 3D ultrasound
>>> image, I want to construct a VTK model of 12 cones by vtkConeSource, and I
>>> can arrange 12 cones on different positions by different vtkActor for each
>>> cone, but I don't know which source or data type to save these 12 cones as
>>> one object. Because I want to use these 12 cones as one object to register
>>> extracted surface of 12 cones in 3D ultrasound image. Do anyone have ideas
>>> about combining 12 vtkConeSource as one object ? Also do you have any ideas
>>> about the registration between this one object and the extracted surface of
>>> 12 cones in 3D ultrasound image ?
>>>
>>> Thank you very much for your advice!
>>>
>>> --
>>>
>>> ---------------------
>>> Best Regards!
>>>
>>> ===============================================
>>> Rong Xu,  Ph.D Student
>>> Ohya Lab
>>> Graduate School of Global Information and Telecommunication
>>> Studies (GITS), Waseda University
>>> 1-6-1 Nishi Waseda, Shinjuku-ku, Tokyo, Japan (¨“169-8050)
>>>
>>> Tel:          +81-80-4208-1207
>>> E-mail:     xurong1981 at gmail.com
>>>                xurong at fuji.waseda.jp
>>> ===============================================
>>>
>>>
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>>
>
>
> --
>
> ---------------------
> Best Regards!
>
> ===============================================
> Rong Xu,  Ph.D Student
> Ohya Lab
> Graduate School of Global Information and Telecommunication
> Studies (GITS), Waseda University
> 1-6-1 Nishi Waseda, Shinjuku-ku, Tokyo, Japan (¨“169-8050)
>
> Tel:          +81-80-4208-1207
> E-mail:     xurong1981 at gmail.com
>                xurong at fuji.waseda.jp
> ===============================================
>
>


-- 

---------------------
Best Regards!

===============================================
Rong Xu,  Ph.D Student
Ohya Lab
Graduate School of Global Information and Telecommunication
Studies (GITS), Waseda University
1-6-1 Nishi Waseda, Shinjuku-ku, Tokyo, Japan (¨“169-8050)

Tel:          +81-80-4208-1207
E-mail:     xurong1981 at gmail.com
               xurong at fuji.waseda.jp
===============================================
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