[slicer-users] Again about the nasal cavity reconstruction

Sammy samuele.zampini at gmail.com
Sat Oct 16 04:44:33 EDT 2010


On Fri, Oct 15, 2010 at 8:59 PM, Daniel Haehn <haehn at bwh.harvard.edu> wrote:

> Hi Samuele,
>
> another approach would be to use the VMTKEasyLevelSetSegmentation module.
>

I will try, even tough, AFAIK, VMTK features work well when you have a
vessel-like
geometry. I think that the nasal-cavity is too complex. But Ill try.

Thanks,

Samuele


>
> You can specify the right threshold for the air, you want to segment. F.e.
> use source seeds which are the starting points of the front propagation and
> target seeds where the propagation will stop. Just play around a little bit.
>
> HTH,
> Daniel
>
> On Oct 15, 2010, at 12:30 PM, Sammy wrote:
>
> > Dear all,
> >
> > I am still fighting against the nasal cavity reconstruction. The point is
> that I
> > tried to follow both your advice and the tutorials, but I can not do
> everything
> > as I would like to.
> >
> > The first question is: to select only the air into the nasal cavity, I
> placed a plane
> > at the inlet of the airflows (where there are the nostrils - fig.
> inlet.png) and another
> >  one at the outlet of the trachea (not sure that is the trachea, sorry!,
> > fig. outlet.png)..
> >
> > Later, and that's the second question, what I would like to do is to
> select the air
> > between these 2 planes (that's to say the inside of the nasal cavity!).
> > Which is the right feature that allows me to get the result I am looking
> for??
> > Is a button shown in the pictures attached or it belongs to another
> module?
> > The reason I can not succeed in doing this operation is that I try with a
> > threshold, but it let me select the whole black volume, not only the
> inside of
> > the nasal cavity, between the 2 "planes" I fixed!
> >
> > Also, about the "air": I think there's a filter that helps to select the
> black-volume,
> > i.e. the air. Could you let me know its name?
> >
> > Hope you can help,
> >
> > thanks in advance,
> >
> >
> > --
> >
>                                Samuele
> > ____________________________________________________________________
> >
> >   .~.
> >   /V\       L   I   N   U   X
> >  // \\          I S    T H E
> >  /(   )\           W A Y
> >  ^^-^^
> >  cell phone :  +393473426510       e.mail:  samuele.zampini at gmail.com
> >  home        :   +390331823927       www:   samiam1000.spaces.live.com
> >
> > <inlet.png><outlet.png>_______________________________________________
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>


-- 

             Samuele Zampini
____________________________________________________________________

  .~.
  /V\       L   I   N   U   X
 // \\          I S    T H E
 /(   )\           W A Y
 ^^-^^
 cell phone :  +393473426510       e.mail:  samuele.zampini at gmail.com
 home        :   +390331823927       www:   samiam1000.spaces.live.com
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