An automated approach to fully reconstruct spherical Kikuchi maps from experimentally collected electron backscatter diffraction patterns and overlay each pattern onto its corresponding position on a simulated Kikuchi sphere is presented in this study. This work demonstrates the feasibility of warping any Kikuchi pattern onto its corresponding location of a simulated Kikuchi sphere and reconstructing a spherical Kikuchi map of a known phase based on any set of experimental patterns. This method consists of the following steps after pattern collection: (1) pattern selection based on multiple threshold values; (2) extraction of multiple scan parameters and phase information; (3) generation of a kinematically simulated Kikuchi sphere as the "skeleton" of the spherical Kikuchi map; and (4) overlaying the inverse gnomonic projection of multiple selected patterns after appropriate pattern center calibration and refinement. The proposed method is the first automated approach to reconstructing spherical Kikuchi maps from experimental Kikuchi patterns. It potentially enables more accurate orientation calculation, new pattern center refinement methods, improved dictionary-based pattern matching, and phase identification in the future.

中文翻译：

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球面菊池图的自动重建。

在这项研究中，提出了一种自动方法，该方法可以通过实验收集的电子反向散射衍射图完全重建球形菊池图，并将每个模式覆盖到其在模拟菊池球上的相应位置。这项工作证明了将任何菊池图案扭曲到模拟菊池球的相应位置并基于任何一组实验图案重建已知相的球形菊池图的可行性。该方法在模式收集后包括以下步骤：（1）基于多个阈值的模式选择；（2）提取多个扫描参数和相位信息；（3）生成运动学模拟的菊池球体，作为球面菊池图的“骨架”；（4）在适当的图案中心校准和细化之后，覆盖多个选定图案的逆地标投影。所提出的方法是从实验菊池图案重建球形菊池图的第一种自动化方法。将来，它有可能实现更准确的方向计算，新的模式中心优化方法，改进的基于字典的模式匹配以及相位识别。