<div class="gmail_quote">On Thu, Jan 15, 2009 at 1:06 PM, aditya saurabh <span dir="ltr"><<a href="mailto:adisaurabh@gmail.com">adisaurabh@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hello,<br><br>I am new to using itk for registration. I have to perform registration of point set pairs which need not have same number of points and also may have extraneous points which should not contribute to the final result of the registration. The use of simple translation transform for this results in wrong result. The itk documentation suggested the use of the itkKernelTransform to perform registration of point sets.</blockquote>
<div><br>First off, the user of kernel transforms is going to require you to have point correspondances. You've mentioned that you may not have the same number of points. So this wouldn't be applicable.<br><br></div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Please somebody tell me how to go about doing that. <br>
<br>P.S. I need the translation results in pixels.</blockquote><div><br>Second, its not clear if you are just seeking merely a translation transform. The use of kernel transforms or ICP etc is an overkill. You could use the itkLandBasedTransformInitializer which can compute the best fitting rotation (or affine) transform that maps the landmark pairs (if you have correspondance). If not use the difference in the centroids.<br>
<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br><br>Thanks in advance.<br><font color="#888888"><br>Aditya<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Karthik Krishnan<br>R&D Engineer,<br>Kitware Inc.<br>Ph: 518 371 3971 x119<br>Fax: 518 371 3971<br>