[vtkusers] Re: [Insight-users] Advice on preprocessing before surface rendering

[Luis Ibanez]

Hi Martin,

You may want to look at the Vessel Enhancement filters
provided in the following paper posted in the Insight Journal,

     http://insight-journal.org/dspace/handle/1926/558

If you find useful that filter, please consider posting a
review for it in the Insight Journal.
http://www.insight-journal.org/InsightJournalManager/view_reviews.php?back=search.php%3Ftexte%3Dvessel&journalid=8&pubid=163

Note that a review is simply your report on how easy (or hard)
you found  to use of the filter.



   Thanks


      Luis


---------------------
Richard Beare wrote:
> Hi,
> 
> There are a number of possibilities that might be worth a try. All of
> them could be attempted before or after thresholding (if you are
> applying thresholding as part of the rendering process.
> 
> 1) median filter
> 2) Morphological opening
> 3) Morphological opening by attributes, using volume or area attributes.
> 
> play with the kernel size parameters for the first to and the lambda
> value for the last and see how you go.
> 
> On 9/18/07, Martin Kavec <kavec at messi.uku.fi> wrote:
> 
>>Hi,
>>
>>I have images of the MR angiography of brain, for which I would like to do
>>surface rendering of the vessels. The problem is that there is a high
>>intensity noise in the lower and central part of the images, which reduces
>>the quality of the rendering. Could anybody recommend me some preprocessing
>>steps to enhance/segment/something  the vessels before the surface rendering.
>>To demonstrate the "quality" of the images I uploaded the montage of 4/180
>>slices on web:
>>http://www.uku.fi/~kavec/MRA.jpg
>>
>>Thanks a lot for advice.
>>
>>Martin
>>_______________________________________________
>>Insight-users mailing list
>>Insight-users at itk.org
>>http://www.itk.org/mailman/listinfo/insight-users
>>
> 
> _______________________________________________
> Insight-users mailing list
> Insight-users at itk.org
> http://www.itk.org/mailman/listinfo/insight-users
>