Han Yuexing, Li Ruiqi, Zeng Yi, Liu Mengyang
School of Computer Engineering and Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, China.
The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
J Microsc. 2022 Feb;285(2):95-111. doi: 10.1111/jmi.13079. Epub 2021 Dec 27.
The information of crystal structure and orientation can be provided by analysing the EBSD (electron backscatter diffraction) patterns which are obtained with the EBSD devices. The reliability and accuracy of the information relies on the location of bands and intersections of the EBSD patterns. In this study, a method is proposed to automatically obtain the locations and intersections of the EBSD patterns, that is, Kikuchi bands. The proposed method uses Radon transform and progressive probabilistic Hough transform to detect straight lines and line segments of the Kikuchi band edges, respectively. Then, Kikuchi bands can be presented by fitting the hyperbolas with the endpoints of line segments. The results can numerically describe the information of Kikuchi bands. Experimental results show that the method is robust and can detect more accurate Kikuchi bands and intersections.
通过分析使用电子背散射衍射（EBSD）设备获得的EBSD图案，可以提供晶体结构和取向的信息。该信息的可靠性和准确性取决于EBSD图案的条纹和交点位置。在本研究中，提出了一种自动获取EBSD图案（即菊池带）位置和交点的方法。所提出的方法分别使用Radon变换和渐进概率霍夫变换来检测菊池带边缘的直线和线段。然后，通过用线段端点拟合双曲线来呈现菊池带。结果可以数值描述菊池带的信息。实验结果表明，该方法具有鲁棒性，能够检测到更准确的菊池带和交点。
