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Re: [shapeworks-users] help with parameters to initialize particles on vertebra surface


Chronological Thread 
  • From: Alan Morris <alan.morris@carma.utah.edu>
  • To: "shapeworks-users@sci.utah.edu" <shapeworks-users@sci.utah.edu>, Rabia Haq <rhaqx001@odu.edu>
  • Cc: "Audette, Michel A." <maudette@odu.edu>
  • Subject: Re: [shapeworks-users] help with parameters to initialize particles on vertebra surface
  • Date: Mon, 11 May 2015 10:55:03 -0600
Hi,

Is there a chance you could point me to one or two of your volumes?

Thanks,
Alan

On Thu, May 7, 2015 at 4:24 PM, Rabia Haq <rhaqx001@odu.edu> wrote:
Hello,

I am trying to utilize ShapeWorks to initiate and optimize correspondence on a vertebral surface. I am using the ShapeWorksGroom to preprocess binary volumetric images by applying:
antialias: 2000 iterations
blur: 4.0

and then calculating distance transform through fast marching.

I have tried to increase the number of iterations (upto 1000) and number of points while running ShapeWorksRun without much difference. Here is the best result I have so far of the vertebra particle-based surface construction, with default parameters:Inline image 1 


Following is the surface representation I need to achieve:

Inline image 2

I would really appreciate any suggestions or guidance in stabilizing the correspondence initialization to achieve a proper surface-initiated list of particles.

Thanks and regards,

Rabia


Ph.D. Candidate, Research Assistant
Department of Modeling, Simulation and Visualization Engineering,
Old Dominion University,
Norfolk, VA.

PNG image

PNG image


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