[Insight-users] Default number of integration steps in itkTimeVaryingVelocityFieldTransform?

[LisaT]

Hello,

While attempting to run 3D Time-Varying-Bspline registration, I noticed that
itkTimeVaryingVelocityFieldIntegrationImageFilter suggests default of 10:

  /**
   * Set the number of integration steps used in the Runge-Kutta solution of
the
   * initial value problem.  Default = 10.
   */

while itkTimeVaryingVelocityFieldTransform suggests a 100:
  /**
   * Set the number of integration steps used in the Runge-Kutta solution of
the
   * initial value problem.  Default = 100;
   */

Consequently, using 100 steps for a 136x176x136 image took at least over
several hrs just for initialization of the transform. Should the latter be
10? 

Thanks!
LT





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