Figure 4.

Convergence metrics (a) $\overline{D}({\mathbf{b}}_1^{(n)},{\mathbf{b}}_2^{(n)})$ and (b) ${\overline{\mathrm{\Delta }}}_{\mathrm{TV}}({\mathbf{b}}_1^{(n)},{\mathbf{b}}_2^{(n)})$ as functions of iteration number n, calculated from basis images reconstructed from the full‐scan data of the DE‐472 phantom. [Color figure can be viewed at wileyonlinelibrary.com]