[Insight-developers] RE: Advection term in ShapeDetection level set method

[Joshua Cates]

Hi,


> I believe all the other filters just set the advection weight to zero by
> default and do not generate the "AdvectionImage".

Yes, by default this term is zero and not calculated as part of the 
equation.

Josh.

______________________________
 Josh Cates			
 School of Computer Science	
 University of Utah
 Email: cates@sci.utah.edu
 Phone: (801) 587-7697
 URL:   http://www.sci.utah.edu/~cates


On Tue, 1 Apr 2003, Lydia Ng wrote:

> Hi Luis,
> 
> The advection term has no effect on the
> ShapeDetectionLevelSetImageFilter.
> The ability to handle an "advection" term is inherited from the 
> SegmentationLevelSetFilter.
> 
> >From doing a search, only Canny and Geodesic uses the advection term.
> I believe all the other filters just set the advection weight to zero by
> default and do not generate the "AdvectionImage".
> 
> - Lydia
> 
> 
> > -----Original Message-----
> > From: Luis Ibanez [mailto:luis.ibanez@kitware.com]
> > Sent: Tuesday, April 01, 2003 10:57 AM
> > To: Joshua Cates; Lydia Ng
> > Cc: Insight Developers List
> > Subject: Advection term in ShapeDetection level set method
> > 
> > Hi Josh, Lydia,
> > 
> > The Set/Get Advection term is available in the
> > Segmentation Level Set Image Filter. So the
> > ShapeDetectionImageFilter inherits this method.
> > 
> > I'm wondering if setting this Advection term
> > has any effect on the computations performed
> > by the ShapeDetectionLevelSetImageFilter, or
> > if it is in the API only to be consistent with
> > the GeodesicActiveContours.
> > 
> > 
> > Thanks for any advice,
> > 
> > 
> >    Luis
>