[Insight-users] about Bspline

[Yixun Liu]

Thank your reply!

The point cloud is acquired by a Laser range scanner, so the points should be arranged topologically in a 2D grid embeded in 3D space. If I represent this point cloud with a 2D B-Spline, can I non-rigidly  register this B-Spline surface with another point cloud? In my opinion, ITK only support 3D B-Spline when two point cloud need be non-rigidly registered.

Regards,

Yixun Liu


----- Original Message ----- 
From: "Luis Ibanez" <luis.ibanez at kitware.com>
To: "Yixun Liu" <yxliu at fudan.edu.cn>
Cc: "VTK" <vtkusers at vtk.org>; <insight-users at itk.org>
Sent: Friday, May 27, 2005 12:50 AM
Subject: Re: [Insight-users] about Bspline


> 
> Hi Yixun,
> 
> 
> Are your points arranged topologically
> in a 2D grid embebded in 3D space ?
> 
> 
> If YES,
> then you can use the BSpline classes
> in ITK for this purpose.
> 
> http://www.itk.org/Insight/Doxygen/html/classitk_1_1BSplineInterpolateImageFunction.html
> 
> 
> 
> If NO,
> then you have the option of using KernelBased Splines
> (five different types are available in ITK).
> 
> http://www.itk.org/Insight/Doxygen/html/classitk_1_1KernelTransform.html
> 
> 
> 
> 
>  Regards,
> 
> 
> 
>     Luis
> 
> 
> ----------------------
> Yixun Liu wrote:
> 
>> Hi,
>>  
>> I have a surface represented by point cloud. I need to generate a 2D 
>> B-Spline from this point cloud. Dose ITK or VTK support it?
>>  
>>  
>> Best regards,
>>  
>> Yixun Liu
>> 
>> 
>> ------------------------------------------------------------------------
>> 
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> 
> 
> 
>