scholarly journals A new method for joint susceptibility artefact correction and super-resolution for dMRI

2014 ◽  
Author(s):  
Lars Ruthotto ◽  
Siawoosh Mohammadi ◽  
Nikolaus Weiskopf
Keyword(s):  
Super Resolution ◽  
New Method ◽  
Susceptibility Artefact ◽  
Artefact Correction

Block unshifting high-accuracy motion estimation: A new method adapted to super-resolution enhancement

2018 ◽  
Vol 65 ◽  
pp. 81-93
Author(s):  
Konstantinos Konstantoudakis ◽  
Lazaros Vrysis ◽  
Nikolaos Tsipas ◽  
Charalampos Dimoulas
Keyword(s):  
Motion Estimation ◽  
Resolution Enhancement ◽  
Super Resolution ◽  
High Accuracy ◽  
New Method

scholarly journals Susceptibility artefact correction using dynamic graph cuts: Application to neurosurgery

2014 ◽  
Vol 18 (7) ◽  
pp. 1132-1142 ◽  
Author(s):  
Pankaj Daga ◽  
Tejas Pendse ◽  
Marc Modat ◽  
Mark White ◽  
Laura Mancini ◽  
...  
Keyword(s):  
Graph Cuts ◽  
Dynamic Graph ◽  
Susceptibility Artefact ◽  
Artefact Correction

scholarly journals 4polar-STORM polarized super-resolution imaging of actin filament organization in cells

2021 ◽  
Author(s):  
Caio Vaz Rimoli ◽  
Cesar Augusto Valades Cruz ◽  
Valentina Curcio ◽  
Manos Mavrakis ◽  
Sophie Brasselet
Keyword(s):  
Actin Filament ◽  
Single Molecule ◽  
Protein Function ◽  
Super Resolution ◽  
New Method ◽  
Nanometer Scale ◽  
Protein Assemblies ◽  
Cellular Context ◽  
Resolution Imaging ◽  
In Cells

Advances in single-molecule localization microscopy are providing unprecedented insights into the nanometer-scale organization of protein assemblies in cells and thus a powerful means for interrogating biological function. However, localization imaging alone does not contain information on protein conformation and orientation, which constitute additional key signatures of protein function. Here, we present a new microscopy method which combines for the first time Stochastic Optical Reconstruction Microscopy (STORM) super-resolution imaging with single molecule orientation and wobbling measurements using a four polarization-resolved image splitting scheme. This new method, called 4polar-STORM, allows us to determine both single molecule localization and orientation in 2D and to infer their 3D orientation, and is compatible with high labelling densities and thus ideally placed for the determination of the organization of dense protein assemblies in cells. We demonstrate the potential of this new method by studying the nanometer-scale organization of dense actin filament assemblies driving cell adhesion and motility, and reveal bimodal distributions of actin filament orientations in the lamellipodium, which were previously only observed in electron microscopy studies. 4polar-STORM is fully compatible with 3D localization schemes and amenable to live-cell observations, and thus promises to provide new functional readouts by enabling nanometer-scale studies of orientational dynamics in a cellular context.

Evanescent-Wave Reconstruction in Time Reversal System

Frequenz ◽  
2018 ◽  
Vol 72 (5-6) ◽  
pp. 285-292 ◽  
Author(s):  
Rui Zang ◽  
Bing-Zhong Wang ◽  
Shuai Ding ◽  
Zhi-Shuang Gong
Keyword(s):  
Time Reversal ◽  
Evanescent Wave ◽  
Super Resolution ◽  
New Method ◽  
Far Field ◽  
Initial Wave ◽  
Calculation Results ◽  
Resolution Imaging ◽  
Wave Conversion ◽  
Sub Wavelength

AbstractThe evanescent wave re-construction performance in the time reversal system with periodic sub-wavelength grating is studied in this paper. Both the analysis and calculation results show that the evanescent components of the initial wave can’t be re-constructed directly by far field time reversal processing. The results indicate the uncertainty of the super-resolution performance of the time reversal technique with randomly arranged scatters. A new method to achieve super-resolution imaging by using evanescent-to-propagation wave conversion also been proposed at the end of this paper.

Sign in / Sign up

Export Citation Format

Share Document