<div dir="ltr">Hi Matt,<div><br></div><div>Thanks for your answer. If you go to this page: <a href="https://github.com/vmtk/vmtk/blob/master/vtkVmtk/Segmentation/itkHessianSmoothed3DToVesselnessMeasureImageFilter.h">https://github.com/vmtk/vmtk/blob/master/vtkVmtk/Segmentation/itkHessianSmoothed3DToVesselnessMeasureImageFilter.h</a> , starting at line 28 it says: </div><div><br></div><div><div> * The vesselness measure is based on the analysis of the the Hessian </div><div> * eigen system. The vesseleness function is a smoothed (continuous) </div><div> * version of the Frang's vesselness function. The filter takes an </div><div> * image of a Hessian pixels ( SymmetricSecondRankTensor pixels ) and</div><div> * produces an enhanced image. The Hessian input image can be produced using </div><div> * itkHessianSmoothedRecursiveGaussianImageFilter. </div></div><div><br></div><div>I think I could use the HessianRecursiveGaussianImageFilter, but I would like to try the HessianSmoothedRecursiveGaussianImageFilter. It may give better results.</div><div><br></div><div>Renzo</div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-08-18 17:05 GMT-03:00 Matt McCormick <span dir="ltr"><<a href="mailto:matt.mccormick@kitware.com" target="_blank">matt.mccormick@kitware.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Renzo,<br>
<br>
Why / where does it require HessianSmoothedRecursiveGaussianImageFilter?<br>
<br>
Thanks,<br>
Matt<br>
<div><div class="h5"><br>
On Mon, Aug 17, 2015 at 9:02 AM, Renzo Ph <<a href="mailto:rphellan2210@gmail.com">rphellan2210@gmail.com</a>> wrote:<br>
> Hi everybody,<br>
><br>
> I found this class for vessel enhancement:<br>
> HessianSmoothed3DToVesselnessMeasureImageFilter. Nevertheless, it requires<br>
> the HessianSmoothedRecursiveGaussianImageFilter. I wasn't able to found that<br>
> filter in ITK, so do you know where can I get it or if its a patented code?<br>
><br>
> Renzo<br>
><br>
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