Skip to main content
. Author manuscript; available in PMC: 2020 Oct 15.
Published in final edited form as: J Comput Phys. 2020 Jul 3;419:109700. doi: 10.1016/j.jcp.2020.109700

Figure 3.

Figure 3

Visualization of an exemplary update sequence of the FIM algorithm that demonstrates the necessity to distinguish between nodal values of different iterations. The arrows visualize the update directions similar to e Δ in Eq. (6). the High anisotropies may lead to multiple updates of nodes with an update direction that is dependant on itself. For such cases, we need to remember the earlier computations of the same node. Note that the update directions can never form a full circle if all diffusion tensors are symmetric and positive definite.