EIDORS: Electrical Impedance Tomography and Diffuse Optical Tomography Reconstruction Software

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EIDORS Examples

>>run /path/to/eidors3d/startup.m

EIDORS Image Reconstruction

• EIDORS Basics

• Basic Image reconstruction

• GN reconstruction vs Backprojection

• Iterative GN reconstruction 3D

• Total Variation reconstruction 2D

• Total Variation: choice of hyperparameters

• Compare 2D Image reconstruction

• Compare 3D Image reconstruction

• Temporal image reconstruction of moving objects

• Absolute image reconstruction

• Exploration of "Cheating" in image reconstruction

Dual model image reconstruction

• Introduction to dual models

• Partially overlapping dual models

• "2½D" Image Reconstruction

• Reconstruction of a layer of a 3D model

• Dual models reconstructing onto a rectangular pixelization

• 3D−3D Dual Models

Image Reconstruction with electrode movement

• Reconstruct Image and Electrode movement in 2D

• Reconstruct Image and Electrode movement in 3D

Strange Effects

• Opposite Stimulation and Measurement produces mirror images

EIDORS data structures and models

• Basic EIDORS Data structures

• Modifying EIDORS models

• EIDORS Variables

• EIDORS Colours

Application: EIT of the thorax

• PEEP trial after lung injury (pig) [data from Frerichs et al (2003)]

• Changes in ventilation after lung injury (pig) [data from Frerichs et al (1998)]

• Images of lungs (Human shallow breathing)

• Images of stomach emptying

Application: EIT for geophysics

• EIT of borehole

FEM Modelling with Netgen

• EIDORS model with netgen

FEM Modelling with Netgen (Older Tutorials)

• Using Netgen to build EIDORS models

• Build Single Plane Models

• Build Double Plane Models

• Simulate moving objects in 16x1 Netgen model

• Simulate moving objects in 16x2 Netgen model

• More sophisticated uses of Netgen

• Explore effect of meshsize with netgen

FEM Modelling with Distmesh

• Simple 2D Distmesh

• Simulate moving target in 2D: Approach #1

• Simulate moving target in 2D: Approach #2

• Simulate 2D geophysical model with Distmesh

Direct FEM Modelling

• Prepackaged 'common' models

• 2D Geophysical model

Visualization

• Visualization using Mayavi

GREIT software

GREIT algorithm framework

• Framework for GREIT software

• Algorithm candidates for GREIT

• Sample reconstructions with GREIT algorithm candidates

GREIT proposed algorithms

• Sheffield Backprojection

• NOSER-type difference and normalized difference

GREIT evaluation

• Evaluation overview

• Simulation evaluation, based on 3D FEM Simulations or 2D FEM Simulations (with moving ball) (currently working badly)

Older Tutorials

• Tutorial for EIDORS Version 2 (EIDORS3D)