Novel nonlinear reconstruction method with grey-level quantisation units for electron tomography
Open Access
- 19 November 2020
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 10 (1), 1-16
- https://doi.org/10.1038/s41598-020-77156-1
Abstract
We report a new computed tomography reconstruction method, named quantisation units reconstruction technique (QURT), applicable to electron and other fields of tomography. Conventional electron tomography methods such as filtered back projection, weighted back projection, simultaneous iterative reconstructed technique, etc. suffer from the ‘missing wedge’ problem due to the limited tilt-angle range. QURT demonstrates improvements to solve this problem by recovering a structural image blurred due to the missing wedge and substantially reconstructs the structure even if the number of projection images is small. QURT reconstructs a cross-section image by arranging grey-level quantisation units (QU pieces) in three-dimensional image space via unique discrete processing. Its viability is confirmed by model simulations and experimental results. An important difference from recently developed methods such as discrete algebraic reconstruction technique (DART), total variation regularisation—DART, and compressed sensing is that prior knowledge of the conditions regarding the specimen or the expected cross-section image is not necessary.This publication has 26 references indexed in Scilit:
- Compressed sensing electron tomographyUltramicroscopy, 2013
- Three-Dimensional Morphology of Iron Oxide Nanoparticles with Reactive Concave Surfaces. A Compressed Sensing-Electron Tomography (CS-ET) ApproachNano Letters, 2011
- 3D imaging of nanomaterials by discrete tomographyUltramicroscopy, 2009
- A novel “ghost”-free tomographic image reconstruction method applicable to rotary-shadowed replica specimensUltramicroscopy, 2008
- Quantitative Three-Dimensional Reconstruction of Catalyst Particles for Bamboo-like Carbon NanotubesNano Letters, 2007
- Three-dimensional analysis of platinum supercrystals by transmission electron microscopy and high-angle annular dark-field scanning transmission electron microscopy observationsPhilosophical Magazine, 2004
- 3D electron microscopy in the physical sciences: the development of Z-contrast and EFTEM tomographyUltramicroscopy, 2003
- Electron tomography of molecules and cellsTrends in Cell Biology, 1999
- Hydrogen sorption-desorption characteristics of mixed and composite NiTiN nanoparticlesNanostructured Materials, 1996
- Characterization of degraded surfaces of Al and AlN ultrafine powdersNanostructured Materials, 1995