<div>Salvador,</div><div><br></div>What I know about difference between AIR and Mutual info based (MUT) registration, AIR is somewhat sensitive to noise level and has more options to be determined. What I heard from developer group about the noise level in AIR is that the noise level should be determined by empirical way. And it has more options for fitting methods. But which one works better, you should decide after a couple of trial and errors. <div>
MUT has less option to be determined by user. MUT is based on information entropy maximization as far as I know. It is one of the good registration methods. But I have no idea about which one is better between AIR or MUT. I prefer to use MUT because less user options, which means it is more automatic. At least, I don't need to play with it to find a proper noise level for AIR. </div>
<div><br></div><div>Best,</div><div>-SC<br><br><div class="gmail_quote">On Wed, Jul 14, 2010 at 7:09 AM, Castaneda, Salvador <span dir="ltr"><<a href="mailto:salvador.castaneda@med.uni-tuebingen.de">salvador.castaneda@med.uni-tuebingen.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">SC</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">Sorry again, Do you know if there is such a big difference
between the mutual image registration and the automatic. And what exactly does
this do just improve the quality of the image all together or
what?</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">thanks in advanced</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">Salvador Castaneda</font></span></div><br>
<div lang="de" dir="ltr" align="left">
<hr>
<font face="Tahoma" size="2"><b>Von:</b> <a href="mailto:mristudio-users-bounces@mristudio.org" target="_blank">mristudio-users-bounces@mristudio.org</a>
[mailto:<a href="mailto:mristudio-users-bounces@mristudio.org" target="_blank">mristudio-users-bounces@mristudio.org</a>] <b>Im Auftrag von </b>Castaneda,
Salvador<br><b>Gesendet:</b> Mittwoch, 14. Juli 2010 12:14<div><div></div><div class="h5"><br><b>An:</b> DTI
Studio, ROI Editor,DiffeoMap Questions/Support<br><b>Betreff:</b> Re:
[Mristudio-users] crash when saving ROI's<br></div></div></font><br></div><div><div></div><div class="h5">
<div></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">SC</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">Thats exactly what i do, i take the image files from
dtistudio and load them in the roi editor. i wanted to upload an anatomical
picture to better draw y rois because i work with rats. is it possible to dothis
even if the matrix and fov are not the same?</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2">thanks</font></span></div>
<div dir="ltr" align="left"><span><font face="Arial" color="#0000ff" size="2"></font></span> </div><br>
<div lang="de" dir="ltr" align="left">
<hr>
<font face="Tahoma" size="2"><b>Von:</b> <a href="mailto:mristudio-users-bounces@mristudio.org" target="_blank">mristudio-users-bounces@mristudio.org</a>
[mailto:<a href="mailto:mristudio-users-bounces@mristudio.org" target="_blank">mristudio-users-bounces@mristudio.org</a>] <b>Im Auftrag von
</b>[Seongjin]<br><b>Gesendet:</b> Mittwoch, 14. Juli 2010 01:45<br><b>An:</b>
DTI Studio, ROI Editor, DiffeoMap Questions/Support<br><b>Betreff:</b> Re:
[Mristudio-users] crash when saving ROI's<br></font><br></div>
<div></div>
<div>Darren,</div>
<div><br></div>I experienced the similar problem. I wanted to use ROI drawn in
ROI panel but it did not work at all. ROI saving and loading functions seem to
work in FIBER panel, but not in the ROI panel.
<div><br></div>
<div>If you want to use ROI for DTI metrics such as FA or ADC measurements, I
recommend ROIeditor (a companion tool to DTIstudio). That is more
powerful. </div>
<div><br></div>
<div>I always process data in DTI studio. Then load all the processed data into
ROI editor. </div>
<div>Finally, do the measurement with ROI editor. </div>
<div><br></div>
<div>The saved ROIs can be reused in the DTI studio for fiber tracking. However,
again, the ROIs could not be used in ROI panel of the DTI studio on my computers
(home computer, laptop, and office computer). </div>
<div><br></div>
<div>I hope this experience might be a bit of help for your problem in using DTI
studio.<br>
<div><br></div>
<div>-SC<br><br>
<div class="gmail_quote">On Tue, Jul 13, 2010 at 5:28 PM, Darren Gitelman <span dir="ltr"><<a href="mailto:d-gitelman@northwestern.edu" target="_blank">d-gitelman@northwestern.edu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="padding-left:1ex;margin:0px 0px 0px 0.8ex;border-left:#ccc 1px solid">Hi<br><br>I
am having problems with DTI studio crashing when trying to save ROI's.
<br><br>This happens after I draw an ROI and click the save button. Then a
dialog (ROI File Format) comes up giving a choice of different formats. I
choose Graphic Compatible (default). After clicking OK, a crash window comes
up a few seconds later. It is labeled MriView3D MFC application. The only
technical information I can find is the following.<br><br>AppName:
dtistudio-latest-x86.exe AppVer:
1.0.0.1 ModName: msvcr80.dll<br>ModVer:
8.0.50727.4053 Offset: 00014458<br><br>This occurs
whether I have drawn 1 or more ROIs. (fixed size ROI, oval).<br>The size of
the ROI does not matter (4 voxel or 10 voxel)<br>It occurs with DTI studio x86
and x64. <br>It occurs with versions 3.0.2 and 2.4.1 of DTIstudio.<br>It
occurs whether I have a complete dataset loaded 35 directions, or even if I
load just 1 image and draw an ROI on it.<br>It occurs on an HP core duo 2
system running Windows XP SP3, and on a redhat linux KVM virtual machine
running windows XP x64.<br>Reinstalling vcredist_x86 or vcredist_x64 from the
DTIstudio website does not help on any of the systems.<br><br>Any suggestions
on how to fix?<br><font color="#888888"><br>Darren<br></font><br>_______________________________________________<br>mristudio-users
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