Improved high-resolution EBSD analyses by correcting radial distortion of electron diffraction patterns
Improved high-resolution EBSD analyses by correcting radial distortion of electron diffraction patterns
复制标题
通过校正电子衍射图案的径向畸变改进高分辨率 EBSD 分析
DOI：
10.1016/j.matchar.2022.112458
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发表时间：
2022-11
影响因子：
4.7
通讯作者：
Stephane Roux
中科院分区：
文献类型：
--
作者：
Qiwei Shi;Emeric Plancher;Dominique Loisnard;Phani Karamched;Jun Liu;Zhe Chen;Haowei Wang;Stephane Roux
Registering experimental and simulated electron diffraction patterns is increasingly used for advanced electron backscatter diffraction indexation (EBSD) analysis, yet the accuracy of registration is limited by several effects not accounted for in pattern simulation, such as the Kikuchi band (K-band) asymmetry, gray level reversal and (mainly radial) optical distortion. Radial distortion parameters have previously been measured with chessboard-type standard samples. Simulated patterns have been adopted to demonstrate the necessity of optical distortion removal in EBSD analyses. However there still lacks an efficient and precise radial distortion assessment and correction method. Here a simple radial distortion model, including barrel and pincushion distortions, is proposed to rectify the diffraction patterns during EBSD analyses. The correlation between experimental pattern and the simulated master pattern permits to index the diffraction pattern and assess the radial distortion simultaneously. The method is applied to three high-definition experimental electron diffraction datasets acquired with different cameras. The radial distortion parameter is identified with a relative uncertainty below 4%. The consideration of radial distortion improves the correlation between experimental and simulated patterns. Gray level profiles of the K-bands are analyzed to verify the correctness of image registration. The current method provides a fast, economic yet precise correction of the radial distortion for advanced EBSD analyses.
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影响因子：
2
作者：
A. Winkelmann;G. Nolze;G. Cios;T. Tokarski;P. Bała;B. Hourahine;C. Trager-Cowan
通讯作者：
A. Winkelmann;G. Nolze;G. Cios;T. Tokarski;P. Bała;B. Hourahine;C. Trager-Cowan
影响因子：
4.7
作者：
Qiwei Shi;Ying Zhou;Hongru Zhong;Dominique Loisnard;Chengyi Dan;Fengguo Zhang;Zhe Chen;Haowei Wang;Stéphane Roux
通讯作者：
Stéphane Roux
影响因子：
2.2
作者：
C. Maurice;K. Dzieciol;R. Fortunier
通讯作者：
C. Maurice;K. Dzieciol;R. Fortunier
影响因子：
2.8
作者：
Brian E. Jackson;Jordan Christensen;Saransh Singh;M. De Graef;D. Fullwood;E. Homer;R. Wagoner
通讯作者：
Brian E. Jackson;Jordan Christensen;Saransh Singh;M. De Graef;D. Fullwood;E. Homer;R. Wagoner
影响因子：
2.2
作者：
Q. Shi;S. Roux;F. Latourte;F. Hild
通讯作者：
Q. Shi;S. Roux;F. Latourte;F. Hild