On Oct 28, 2019, at 2:34 PM, Claudia Companioni-Brito <ccompanionib@gmail.com> wrote:

Hello Shireen,

Thank you very much!

Following your advice, I tried to adjust the voxel spacing (to 0.1 and less) for IsotropicResampling and it was good, but I still have problems after applyDistanceTransforms. I have changed some parameters in this step (antialiasIterations, smoothingIterations, alpha, beta) but the shapes keep losing its original form.
 
Best,
Claudia

On Wed, 23 Oct 2019 at 20:17, Shireen Elhabian <shireen@sci.utah.edu> wrote:

Hi Claudia,

The shapes disappear because these are so thin structures that do not have enough pixel-wise spatial support.  What voxel size are you using for the “applyIsotropicResampling” step? The segmentations voxel spacing is 0.1, if you are using a larger voxel spacing, this would make the shapes disappear. You could also resample it with less than 0.1 space to get a better resolution. Also, these segmentations have enough background voxels, you might want to bypass the padding step. 

<snapshot0001.png>

thanks and best regards
Shireen


------------------------------------------
Shireen Elhabian, M.Sc., Ph.D.
Research Assistant Professor
School of Computing
Scientific Computing and Imaging Institute
University of Utah
WEB 2815
72 Central Campus Drive, Salt Lake City, UT, 84112
Phone (801) 587-3206
Fax (801) 585-6513
Home Page: http://www.sci.utah.edu/~shireen

On Oct 22, 2019, at 5:10 AM, Claudia Companioni-Brito <ccompanionib@gmail.com> wrote:

Dear Shireen Elhabian,

Thank you very much for your quick response.
Attached is a .zip file with 5 shape samples I've been testing with Shapeworks.

King regards,

Claudia

On Fri, 18 Oct 2019 at 19:21, Shireen Elhabian <shireen@sci.utah.edu> wrote:

Hi,

Would you mind sharing with us some shape samples (e.g. 3 segmentations) that you are using as input to Studio to help us troubleshoot this?

thanks and best regards
Shireen


------------------------------------------
Shireen Elhabian, M.Sc., Ph.D.
Research Assistant Professor
School of Computing
Scientific Computing and Imaging Institute
University of Utah
WEB 2815
72 Central Campus Drive, Salt Lake City, UT, 84112
Phone (801) 587-3206
Fax (801) 585-6513
Home Page: http://www.sci.utah.edu/~shireen

> On Oct 17, 2019, at 6:38 AM, ccompanionib@gmail.com wrote:
>
> I have been trying to use ShapeWorks tools for some shape analysis
> (semicircular canals of the vestibular system). I am using the python-scripted
> of the ellipsoid example with my data, but after the grooming regardless of
> what parameters I change,
> whether its skipping grooming altogether, filling holes, smoothing,
> antialiasing, etc or any variation thereof,the shape disappear.
> I also try with ShapeWorksStudio changing parameters on the grooming step, and
> it seem to work but then it crashes on the optimization.
> I would really appreciate any help you could give me.

<label_SemicircularCanals.zip>

--

Sincerely,

Claudia Companioni Brito