[Insight-users] A Question about itk : Examples, 2D versus 3D registration, ICP

[Luis Ibanez]

Hi Weihua,

Welcome to ITK !!


1) The document that you want to look
    at is the ITK Software Guide.

     http://www.itk.org/ItkSoftwareGuide.pdf

    You can download it also from the ITK
    Donwload page.

    The source code for ALL the examples shown
    in this PDF documents are available in

            Insight/Examples/



2)  There is no "Samples" subdirectory in ITK.
     Are you probably refering to "Examples" ?


     If so, the Registration examples in

         Insight/Examples/Registration

     are mostly in 2D because that made easier
     to present them in the book.

     However, all those techniques can be used
     in N-Dimensional images.

     You can do 3D registration with ITK, just
     need to instantiate the image class for 3D.

     *DO NOT* divide your 3D image into 2D slices !!!
     You can use the 3D format of your image directly.

     For examples on applications doing 3D registration
     with ITK, please look at the checkout:

              InsightApplications


3)  You will find examples on how to use the ICP
     (Iterative Closest Point) method in the directory:

          Insight/Examples/Patented/

      If you are using the CVS version of ITK,

      or in the directory

          Insight/Examples/Registration

      if you are using ITK 1.8


      The files that you want to look at are:

           IterativeClosestPoint1.cxx
           IterativeClosestPoint2.cxx
           IterativeClosestPoint3.cxx



      Input files for these examples are available
      in the directory

             Insight/Examples/Data


      in particular:

             IterativeClosestPointFixedPoints.txt
             IterativeClosestPointFixedPoints2.txt
             IterativeClosestPointMovingPoints.txt
             IterativeClosestPointMovingPoints2.txt



       Note that the ICP algorithm is covered by a Patent
       from General Motors Corp. You should get a license
       from GM in order to use this algorithm even for
       research purposes.




   Regards,



      Luis



---------------------
weihuax at sfu.ca wrote:

> Hi, 
> 
> I am a new user for itk. I have several questions
> 
> (1) From the downloaded 'ITK_hadnout.pdf', Page 51-58, there are two
> examples, I wanted to know where I can find the codes so that I can use them
> for my own images.
> 
> (2) From the 'Samples' subdirectory, I read a lot of registration method,
> but almost of them are for 2-D images. If I have two 3-D images for
> registration, any samples or codes that I can refer to? Should I divide all
> 3-D images into several 2-D slices and apply the registration method?
> 
> (3) From the 'Samples' subdirectory, there are three 'iterative control
> points' samples, how can I organize the input file format?
> 
> Thanks
> 
> weihua xiong
> 
> 
> 
> 
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