[Insight-users] Re: question about the example of deformablemodel1

[Luis Ibanez]

Hi Lin,

If you want to deform a Mesh using an existing deformation field
(an image of Vectors), you may want to look at the WarpMeshFilter

http://www.itk.org/Insight/Doxygen/html/classitk_1_1WarpMeshFilter.html

    Regards,


       Luis


------------------
Lin, Lan wrote:
> I see. But if I want to use the deformation vector field from the
> registration, how can I deform the surface from the binary image? Can I
> do the following?
> Input binary image(3D)->generate the mesh(according to the
> deformablemodel1.cxx)->input the deformation vector field(from the
> registration result)->using the warpImageFilter(according to the
> WarpImageFilter1.cxx)->output the deformable mesh or deformable binary
> image?
> Actually I am thinking if the output is the deformed binary image, I
> lose the benefit of mesh or surface.
> 
> -----Original Message-----
> From: Luis Ibanez [mailto:luis.ibanez at kitware.com] 
> Sent: Monday, June 04, 2007 2:55 PM
> To: Lin, Lan; Insight Users
> Subject: Re: question about the example of deformablemodel1
> 
> 
> Hi Lin,
> 
> 
>        Nope,
> 
>    The vector field used in the DeformableModel1.cxx example
>    *is not* equivalent to the vector fields that result from
>    a deformable registration method.
> 
>    Instead, it is equivalent to the *Advection field* that you will
>    use in a LevelSet method. That is, this is a field that have
>    vectors pointing to the boundaries of anatomical structures in
>    the image, and whose magnitued are larger when you are closer to
>    these boundaries.
> 
> 
> 
>     Regards,
> 
> 
> 
>         Luis
> 
> 
> 
> =================
> Lin, Lan wrote:
> 
>>Hi Dr Ibanez,
>>
>>        I am just curious if we can replace the vector field in 
>>deformablemodel1.cxx as the deformation field that is calculated from 
>>any deformable registration method?
>>
>>        From the figure 9.45 of the ItkSoftwareGuide2.4, there are two
> 
> 
>>things input into the deformable mesh filter. If I have the binary
> 
> image 
> 
>>and the deformation field, can I directly connect these two components
> 
> 
>>to the deformable mesh filter? How?
>>
>>Thanks
>>
>> 
>>
>> **Lan Lin**
>>
>>San Antonio, TX78229
>>
>>phone: (210)450-7556; fax: (210)616-5682
>>
>> 
>>
> 
>