After this change, the spatial_derivatives() modes forward_central_backward (finite differences), bspline, and gaussian produce similar results. For flow fields, it is important to set spacing correctly. The default assumes flow fields with respect to normalized grid coordinates with align_corners=True.
After this change, the
spatial_derivatives()modesforward_central_backward(finite differences),bspline, andgaussianproduce similar results. For flow fields, it is important to setspacingcorrectly. The default assumes flow fields with respect to normalized grid coordinates withalign_corners=True.