Enhancing microstructural fidelity in near-field high-energy diffraction microscopy reconstruction with Noise2Void denoising

Guo, X.; Beniwal, D.; McLain, D.; Almer, J.; Park, J.-S.; Kenesei, P.; Sharma, H.

doi:10.1107/S1600576726007612

Figure 8
Orientation accuracy and boundary agreement for recovered grains. (a) Misorientation to EBSD with a single global reference rotation, showing a systematic in-plane gradient of ∼0.6° mm⁻¹ across the EBSD scan. (b) After a position-dependent reference rotation the residual is flat at a median of 0.14°. This gradient independently reproduces the systematic EBSD orientation error documented for this data set by Sparks et al. (2024

). (c) Per-grain boundary distance to EBSD for grains recovered by both pipelines: the N2V and traditional distributions are statistically indistinguishable (combined medians 5.5 versus 5.6 µm; Mann–Whitney p = 0.58), showing that N2V does not perturb the boundaries of commonly detected grains.

JOURNAL OF
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CRYSTALLOGRAPHY

ISSN: 1600-5767

Volume 59| Part 5| October 2026|

https://doi.org/10.1107/S1600576726007612

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