Hello,<br><br>I am using itk FEM registration filter. This filter makes use of itkFEMSolverCrankNicolson. In the header file of the solver one finds the equation that the solver tries to solve. However, one can only find there its Crank-Nicolson formulation but not the original PDE that leads to that equation. <br>
<br>I tried to get the discretized equation by using the equation of motion that is described in a book and Crank-Nicolson scheme but did not arrive to the same solution. Could someone tell me which on is the original PDE that is solved in itkFEMSolverCrankNicolson?<br>
<br>Thank you!!<br><br>Greetings,<br><br>Cristina<br>