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基于骨架化的位错三维重构技术

胡家炜#，徐诗朋#，花金茂，陈淼淼，冯宗强*，黄晓旭*
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2023年 第42卷 第5期: 1000-6281（2023）05-574-007     下载地址：

基于骨架化的位错三维重构技术

胡家炜#，徐诗朋#，花金茂，陈淼淼，冯宗强*，黄晓旭*

（1.重庆大学材料科学与工程学院，2.重庆大学电镜中心，重庆400044）

摘  要  基于体视学原理研发位错三维表征技术是实现位错高效三维表征的一种新探索，但现有的方法仍存在重构效率、精度和保真度低等问题。本文利用体视学原理开发了基于骨架化的位错三维重构方法，可以实现位错图像的高精度对中、位错线型的自动优化、位错坐标的批量提取和位错像的快速三维重构，在重构效率和精度上表现出综合技术优势。研究结果为未来发展高时间分辨率位错三维重构技术提供了新的技术途径。

关键词  位错；三维表征；体视学；骨架化

中图分类号：O77+2；TG111.2；TG113.11  文献标识码：A  doi:10.3969/j.issn.1000-6281.2023.05.002

 

Skeletonization-based dislocation tomography

HU Jia-wei 1#，XU Shi-peng1#，HUA Jin-mao1，CHEN Miao-miao1，FENG Zong-qiang1，2*，HUANG Xiao-xu1，2*

（1.College of materials science and engineering, Chongqing University, Chongqing 400044; 2. Electron Microscopy Center, Chongqing University, Chongqing 400044，China）

Abstract  The development of three-dimensional (3D) characterization techniques of dislocations based on the principle of stereology is a new exploration for high efficiency dislocation characterization. However, this technique still suffers from limited efficiency, precision and fidelity. Based on the stereo-vision 3D reconstruction method, here we propose a skeletonization-based dislocation tomography (SDT) which can realize the highly efficient alignment of dislocation images, the automated optimization of dislocation lines, the batch determination of dislocation coordinates, and the fast 3D reconstruction of dislocations. This SDT method shows the technological advantage of the reconstruction efficiency and the accuracy. Our results here provide a new approach for the development of 3D characterization techniques of dislocations with a high temporal resolution.

Keywords   dislocations; 3D characterization; stereology; skeletonization

 

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