HAADF-STEM Image Resolution Enhancement Using High-Quality Image Reconstruction Techniques: Case of the Fe3O4(111) Surface

Autor: Demie Kepaptsoglou, Bernardo Nuñez-Moraleda, M. P. Guerrero-Lebrero, A. Yáñez, Vlado K. Lazarov, Guillermo Bárcena-González, Elisa Guerrero, Pedro L. Galindo

Publikováno v: Microscopy and Microanalysis. 25:1297-1303

From simple averaging to more sophisticated registration and restoration strategies, such as super-resolution (SR), there exist different computational techniques that use a series of images of the same object to generate enhanced images where noise

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58822395816e642ee8bdb49c00aa0663
https://doi.org/10.1017/s1431927619014788

Correcting sample drift using Fourier harmonics

Autor: Bernardo Nuñez-Moraleda, M. P. Guerrero-Lebrero, David González, Elisa Guerrero, Guillermo Bárcena-González, Pedro L. Galindo, D.F. Reyes, V. Braza, A. Yáñez

Publikováno v: Micron. 110:18-27

During image acquisition of crystalline materials by high-resolution scanning transmission electron microscopy, the sample drift could lead to distortions and shears that hinder their quantitative analysis and characterization. In order to measure an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::336ccbdf7e308fce48923a687c3c3a1a
https://doi.org/10.1016/j.micron.2018.04.004

Topological Homogeneity for Electron Microscopy Images

Autor: Helena Molina-Abril, Elisa Guerrero, Fernando Díaz del Río, M. P. Guerrero-Lebrero, Pedro Real, Guillermo Barcena, V. Braza, David González, Pedro L. Galindo

Publikováno v: idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Computational Topology in Image Context ISBN: 9783030108274
CTIC

In this paper, the concept of homogeneity is defined, from a topological perspective, in order to analyze how uniform is the material composition in 2D electron microscopy images. Topological multiresolution parameters are taken into account to obtai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3322050162480105184cbbc37193766

Evaluation of high-quality image reconstruction techniques applied to high-resolution Z-contrast imaging

Autor: David González, Pedro L. Galindo, A. Yáñez, M. P. Guerrero-Lebrero, Elisa Guerrero, D. Fernández-Reyes, Guillermo Bárcena-González

Publikováno v: Ultramicroscopy. 182

High-quality image reconstruction techniques allow the generation of high pixel density images from a set of low-resolution micrographs. In general, these techniques consist of two main steps, namely, accurate registration, and formulation of an appr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc15b9daef873fd348593936f8b0c504
https://pubmed.ncbi.nlm.nih.gov/28783580

Direct observation of depth-dependent atomic displacements associated with dislocations in gallium nitride

Autor: Akira Yasuhara, Colin J. Humphreys, M. P. Guerrero-Lebrero, Leslie J. Allen, Adrian J. D’Alfonso, Peter Bernhard Hirsch, Peter D. Nellist, Siyuan Zhang, Juan G. Lozano, Eiji Okunishi, Hao Yang, Pedro L. Galindo

We demonstrate that the aberration-corrected scanning transmission electron microscope has a sufficiently small depth of field to observe depth-dependent atomic displacements in a crystal. The depth-dependent displacements associated with the Eshelby

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9c9e3493955f789d2e04f228d1ba4f4
https://ora.ox.ac.uk/objects/uuid:965559b7-6d02-4b00-b296-b44ec35b8f5a