Figure 2

RESIRE-V diagram: Inputs are the differences between the left and right polarization projection and the support from the scalar reconstruction. The algorithm uses a for loop to refine the magnetization vector field \({\textbf {M}}\). At each iteration, it calculates the forward projections and computes their differences with the measured ones. The residuals (or differences) are back-projected to yield gradients. The algorithm will use these gradients to update the magnetization and apply the support constraint. The step size \(\frac{t}{\sqrt{3}nN}\) is replaced by s for simplification purposes.