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research article

Stereo-vision three-dimensional reconstruction of curvilinear structures imaged with a TEM

Oveisi, Emad  
•
Letouzey, Antoine
•
De Zanet, Sandro  
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2017
Ultramicroscopy

Deriving accurate three-dimensional (3-D) structural information of materials at the nanometre level is often crucial for understanding their properties. Tomography in transmission electron microscopy (TEM) is a powerful technique that provides such information. It is however demanding and sometimes inapplicable, as it requires the acquisition of multiple images within a large tilt arc and hence prolonged exposure to electrons. In some cases, prior knowledge about the structure can tremendously simplify the 3-D reconstruction if incorporated adequately. Here, a novel algorithm is presented that is able to produce a full 3-D reconstruction of curvilinear structures from stereo pair of TEM images acquired within a small tilt range that spans from only a few to tens of degrees. Reliability of the algorithm is demonstrated through reconstruction of a model 3-D object from its simulated projections, and is compared with that of conventional tomography. This method is experimentally demonstrated for the 3-D visualization of dislocation arrangements in a deformed metallic micro-pillar. (C) 2017 Published by Elsevier B.V.

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Type
research article
DOI
10.1016/j.ultramic.2017.08.010
Web of Science ID

WOS:000415650200014

Author(s)
Oveisi, Emad  
Letouzey, Antoine
De Zanet, Sandro  
Lucas, Guillaume  
Cantoni, Marco  
Fua, Pascal  
Hébert, Cécile  
Date Issued

2017

Publisher

Elsevier

Published in
Ultramicroscopy
Volume

184A

Start page

116

End page

124

Subjects

TEM

•

Stereo-vision

•

3-D reconstruction

•

Curvilinear structures

•

Dislocations

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CIME  
CVLAB  
Available on Infoscience
September 1, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/139944
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