Circular Fast Fourier Transform Application: A Useful Script for Fast Fourier Transform Data Analysis of High-resolution Transmission Electron Microscopy Image KCI

Title
Circular Fast Fourier Transform Application: A Useful Script for Fast Fourier Transform Data Analysis of High-resolution Transmission Electron Microscopy Image
Author(s)
김진규; 유승주; 김창연; 주형태
KIOST Author(s)
Jou, Hyeong Tae(주형태)
Publication Year
2014-12
Abstract
Transmission electron microscope (TEM) is an excellent tool for studying the structure and properties of nanostructured materials. As the development of Cs -corrected TEM, the direct analysis of atomic structures of nanostructured materials can be performed in the high-resolution transmission electron microscopy (HRTEM). Especially, fast Fourier transform (FFT) technique in image processing is very useful way to determine the crystal structure of HRTEM images in reciprocal space. To apply FFT technique in HRTEM analysis in more reasonable and friendly manner, we made a new circular region of interest (C-ROI) FFT script and tested it for several HRTEM analysis. Consequentially, it was proved that the new FFT application shows more quantitative and clearer results than conventional FFT script by removing the streaky artifacts in FFT pattern images. Finally, it is expected that the new FFT script gives great advantages for quantitative interpretation of HRTEM images of many nanostructured materials.
ISSN
2287-5123
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1567
Bibliographic Citation
한국현미경학회지, v.44, no.4, pp.138 - 143, 2014
Publisher
한국현미경학회
Keywords
Fourier transformation; Circular region of interest; High-resolution trans-mission electron microscopy; Electron crystallography; Image processing
Type
Article
Language
English
Publisher
한국현미경학회
Related Researcher
Research Interests

Machine Learning,Marine Active Fault Study,Exploration Seismology,기계학습,해저단층연구,탄성파탐사

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