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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I am working in an implementation of the k-Nearest
Neighbors segmentation algorithm using kdTrees. Currently, I have a sample of “prototypes”
which are measurement vectors taken from the input image with their
corresponding classes. I am able to build a kdTree, populate it with the sample
and search in it, getting the k nearest neighbors. However, the search only
returns the measurement vectors but not the classes to which each vector belongs
(e.g. the tree returns a list of vectors which say that the closest neighbors
have intensities of 100, 110, 140, 150 … but does not tell me if these
belong to the class ‘tumor’, ‘ventricles’, ‘white
matter’ or whatever). Is there a straightforward way to do this, without
modifying the ITK classes? I have checked ITK’s documentation and
examples but I haven’t been able to figure this out yet.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Any help will be greatly appreciated! All the best<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>-----</span></font><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Álvaro Bertelsen MSc</span></font><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>CEIT - IK4 Research <st1:City w:st="on"><st1:place
w:st="on">Alliance</st1:place></st1:City></span></font><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Web: </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><a href="http://www.ceit.es"><span
lang=EN-GB>www.ceit.es</span></a></span></font><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Email: </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><a href="mailto:abertelsen@ceit.es"><span
lang=EN-GB>abertelsen@ceit.es</span></a></span></font><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'> </span></font><span lang=EN-GB><o:p></o:p></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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