Unregularized linear filters fit to 4D-STEM diffraction data can reproduce arbitrary real-space patterns, while regularized, validated filters yield reconstructions comparable to HAADF imaging, though selection of the regularization strength is not formalized.
Direct imaging of hydrogen-atom columns in a crystal by annular bright-field electron microscopy,
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Structure retrieval from 4D-STEM: statistical analysis of potential pitfalls in high-dimensional data
Unregularized linear filters fit to 4D-STEM diffraction data can reproduce arbitrary real-space patterns, while regularized, validated filters yield reconstructions comparable to HAADF imaging, though selection of the regularization strength is not formalized.