[Insight-users] Anisotropic Diffusion Filtering

[lina septiana]

Hi Pietro,

Anisotropic filter is one the good filter for image, but if you used the traditional anisotropic difussion, it may obviously distorted the edge. 
You can try another anisotropic diffusion such as Nordstorm (added with the bias) which may correcting the edge distortion but may be will increase the noise.
or try to combine anisotropic diffusion with other algorithm, there're many papers explain about it.


Lina


________________________________
 From: Pietro Nardelli <pie.nardelli at gmail.com>
To: insight-users at itk.org 
Sent: Tuesday, May 15, 2012 7:48 PM
Subject: [Insight-users] Anisotropic Diffusion Filtering
 
Hi itk users,

I need some advice. I'm trying to segment the airway of a lung from CT
Dicom datasets and the threshold connected library seems to be very
appropriate. I followed the example of the guide and I implemented it
into Slicer 4.1 and I can get good results. I have a doubt though: in
most cases I can obtain better results setting to 0 the number of
iterations of the smoothing variable, but sometimes a good smoothing
might be very helpful. So, I was wondering whether using another
anisotropic diffusion filter in place of the curvature flow presented
in the example could allow to obtain better results. Have you some
advice about the best filter I can use for CT Dicom images?

Thank you for your help,

Pietro
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