Difference between two displacement fields

[Ray]

Hello!

Given two displacement fields df1 and df2, does ITK provide a way to compute the difference between the two displacement fields? i.e. || df1-df2 ||

Thanks.

-Ray

[matt.mccormick]

Hi Ray,

Yes, this could be achieved with with

• itk::SubtractImageFilter
• itk::VectorMagnitudeImageFilter

but, measures other than displacement magnitude may be more interesting, i.e.

• The displacement field jacobian determinate
• The strain field

HTH,
Matt