[Elastix] The determinant of the spatial Jacobian
litiantian2014 at 163.com
Sun Apr 26 18:56:52 CEST 2015
i have a question when i do the registration.....
when I use the command:
transformix -jac all -out outputDirectory -tp TransformParameters.txt
to calculate the determinant of the spatial Jacobian matrix, but i found that it contains minus values in the matrix.
through the elastix manual, i learned that the value of the determinant of the spatial Jacobian matrix identified the amount of local compression or expansion. If it was >1, the pixel was compressed,vise versa. but how does the minus value mean?
in my application, i want to do the registration of the organ position and shape,but keep the value of the corresponding pixel unchanged....(i don't know if this description is clearly to you... )
And if there is any possible method to do the registration and keep the 3D distribution information at the same time?
I would be appreciate if i can get any help from you!
Thank you very much!!
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Elastix