<div dir="ltr">Hi Brad,<div>Sorry, I should have explained this already.</div><div>Y Axis is Misregistration between a pair of image in "X-direction". One point represents Mean of Misregistration in X-direction computed from ~150 locations.</div>
<div>X axis is time-series of image pairs.</div><div>I could also send similar plot in Y direction, if you want.</div><div>BR</div><div>Jagjeet</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Nov 12, 2013 at 2:51 PM, Bradley Lowekamp <span dir="ltr"><<a href="mailto:brad@lowekamp.net" target="_blank">brad@lowekamp.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Hello,<div><br></div><div>What is the y-axis?</div><div><br></div><div>Brad</div><div>
<br><div><div><div class="h5"><div>On Nov 12, 2013, at 8:45 AM, Jagjeet Nain <<a href="mailto:jagjeet.nain@gmail.com" target="_blank">jagjeet.nain@gmail.com</a>> wrote:</div><br></div></div><blockquote type="cite"><div>
<div class="h5"><div dir="ltr"><br><br><div class="gmail_quote"><br><div dir="ltr"><div><div><div><div><div>Hi,<br></div>I was trying to run an Image Registration program which uses ITK's Mattes Mutual Information method to compute misregistration between an image pair and is based on ../Examples/Registration/ImageRegistration4.cxx program.<br>
Then I linked this program with two different ITKs (3.2 & 4.4) and tried running two executable on ~200 image pairs to find misregistration between each pair.<br><br>I was expecting same output from two ITKs(running system is same, Linux 32 in both case) but I am bit puzzled to see that there are misregistration differences between two ITK versions, Also these differences are not negligible they are of the order of 0.1m in a pixel of size 3m. Attached are misregistration results from two ITKs.<br>
<br>I guess somebody might have done similar comparison between different ITK versions, what is their opinion? Are these differences expected?<br></div>If differences between two ITKs are expected, then which one is better 3.2 or 4.4?<br>
</div>Thanks.<br></div><div>Any help or pointer in this respect is well appreciated.<br></div>BR<span><font color="#888888"><br></font></span></div><span><font color="#888888">Jagjeet<br></font></span></div>
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