Definition, Extraction, and Validation of Pore Structures in Porous Materials

  title={Definition, Extraction, and Validation of Pore Structures in Porous Materials},
  author={Ulrike Homberg and Daniel Baum and Alexander Wiebel and Steffen Prohaska and Hans-Christian Hege},
  booktitle={Topological Methods in Data Analysis and Visualization},
An intuitive and sparse representation of the void space of porous materials supports the efficient analysis and visualization of interesting qualitative and quantitative parameters of such materials. We introduce definitions of the elements of this void space, here called pore space, based on its distance function, and present methods to extract these elements using the extremal structures of the distance function. The presented methods are implemented by an image-processing pipeline that… 
Morphological Visualization Analysis of Porous Structures in Phase Inversion Processes
Porous membranes are an important technology that continually become more established as steps in research lead to its better understanding. Pore formation within the porous membranes is an emerging
Merging criteria for defining pores and constrictions in numerical packing of spheres
The void space of granular materials is generally divided into larger local volumes denoted as pores and throats connecting pores. The smallest section in a throat is usually denoted as constriction.
Merging criteria for the definition of a local pore and the CSD computation of granular materials Merging criteria for the definition of a local pore and the CSD computation of granular materials
Granular filters are materials used to avoid mass transport under seepage flow. They are installed in zoned dams or on the downstream slope of levees to prevent the wash out of soil particles through
Towards replacing physical testing of granular materials with a Topology-based Model
Two means of estimating flow-permeable surface area are provided by identifying dead-ends in the flow coupled with isosurface extraction and the application of the Carman-Kozeny equation, with the aim of establishing consistency over a range of particle shapes, sizes, porosity levels, and void distribution patterns.
Adapting trabecular structures for 3D printing: an image processing approach based on μCT data
A strategy to assess and prepare realistic trabecular structures for 3D printing using image analysis with the aim of preserving the structural elements and discussing critical conditions of the printing system is presented.
Pore Structure of Grain-Size Fractal Granular Material
The pore structure of the grain-size fractal granular material was proven to differ from the ideal fractal structure, such as the Menger sponge, and the empirical relationships among the box-counting dimension, lacunarity, succolarity, grain- size fractal dimension, and porosity were provided.


Identification of Descriptive Parameters of the Soil Pore Structure Using Experiments and CT Data
In this paper, methods are presented that combine experimental and micro tomographic information to derive parameters of the grain and pore structure of wide-gradated soils. For this purpose, samples
Augmented Topological Descriptors of Pore Networks for Material Science
This paper introduces geometric and topological descriptors that enhance the estimation of material permeability and describes tools that provide measurements of media porosity, and permeability estimates, including visualization of pore structures.
Comparison of Network Generation Techniques for Unconsolidated Porous Media
Two different algorithms to extract pore network parameters from three-dimensional images of unconsolidated porous media systems are presented and compared, showing differences in both the spatial mapping and statistical distributions in network properties for the random packings.
Topologically Clean Distance Fields
A set of criteria for finding the "difference" between two skeletal structures is provided, and this is used to examine how the structure of the porous solid changes over several timesteps in the simulation of the particle impact.
Dual models of pore spaces
Pore space morphology analysis using maximal inscribed spheres
Voronoi-Based Extraction and Visualization of Molecular Paths
A novel filtering method is used to extract the significant paths from the Voronoi diagram of spheres and a method to compute the extension surface of selected paths and visualize it using the skin surface is provided.
Application of a New Grain-Based Reconstruction Algorithm to Microtomography Images for Quantitative Characterization and Flow Modeling
A new grain-based algorithm used for network generation that is significantly faster computationally, less dependent on image resolution, and the network structure is tied to the fundamental granular structure of the material.