EIT-MESHER

EIT-MESHER generates high-quality tetrahedral meshes from binary masks of 3D volume segmentations for Finite Element Model (FEM)–based simulations such as Electrical Impedance Tomography (EIT) and related tomographic reconstructions.

Key Features:

• Implementation: Implemented in C++ and leverages the Computational Geometry Algorithms Library (CGAL) for mesh construction.
• Input data: Accepts binary masks of 3D volume segmentations as the source for mesh generation.
• Mesh output: Produces high-quality tetrahedral meshes suitable for Finite Element Models (FEM).
• Non-linear refinement: Supports custom, non-linear refinement strategies to concentrate mesh resolution in critical regions such as around electrodes.
• Robustness and efficiency: Uses CGAL-based algorithms to provide robust and efficient mesh generation and quality control.
• Application-specific quality: Enhances mesh quality to improve accuracy of EIT reconstructions and other inverse-problem simulations.

Scientific Applications:

• Electrical Impedance Tomography (EIT): Generates FEM meshes tailored for EIT forward and inverse problem simulations, including electrode region refinement.
• Diffuse Optical Tomography (DOT): Produces precise tetrahedral meshes to support DOT optical transport and reconstruction modeling in soft tissues.
• FEM-based biomedical simulations: Provides meshes applicable to other biomedical and tomographic FEM simulations requiring localized refinement.

Methodology:

Implemented in C++ and built on CGAL, EIT-MESHER generates tetrahedral meshes from binary 3D segmentation masks and applies custom non-linear refinement criteria, including localized refinement around electrodes.