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Adaptive reconstruction method for three‐dimensional orientation imaging
Author(s) -
Li S. F.,
Suter R. M.
Publication year - 2013
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889813005268
Subject(s) - orientation (vector space) , detector , computer science , noise (video) , resolution (logic) , diffraction , algorithm , computer vision , image resolution , optics , microscopy , iterative reconstruction , artificial intelligence , physics , geometry , mathematics , image (mathematics)
An adaptive orientation reconstruction algorithm is developed for near‐field high‐energy X‐ray diffraction microscopy. When combined with a spatially adaptive extension the algorithm results in a factor of 10–1000 speed‐up over the existing forward modeling reconstruction method while preserving most of the spatial and orientation resolution characteristics. Tests of the reconstruction code based on simulated structures and real data on a complex microstructure are presented. Simulated structures include intra‐granular orientation gradients and noisy detector images. It is shown that resolution in both real space and orientation space degrades gracefully as complexity and detector noise increase.