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Figure 9
FF_HEDM: comparison of iterative (blue) versus all-at-once (red) refinement using 250 simulated f.c.c. grains with known ground truth. (a) Position error distribution. (b) Orientation error (misorientation) distribution. (c) Mean lattice parameter error distribution, computed using a permutation-aware metric that accounts for the cubic symmetry equivalence of a, b and c. Both methods recover position and orientation with comparable accuracy, but the iterative approach achieves 190× better lattice parameter precision (μ = 0.001% versus 0.190%).

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ISSN: 2053-2733
Volume 82| Part 4| July 2026|
https://doi.org/10.1107/S2053273326004018
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