Study level

Master of Philosophy

Honours

Faculty/School

Science and Engineering Faculty

School of Mathematical Sciences

Topic status

We're looking for students to study this topic.

Supervisors

Dr Vivien Challis
Position
Lecturer in Applied and Computational Mathematics
Division / Faculty
Science and Engineering Faculty
Professor Ian Turner
Position
Professor
Division / Faculty
Science and Engineering Faculty

Overview

The aim of this research is to determine the virtual morphology of a heterogeneous porous medium from a micro computed tomography (micro-CT) scanner dataset.

We'll use the 3D imaging facilities at QUT's Institute of Future Environments (IFE) for data capture.

Research activities

We expect to process the micro-CT data in four steps:​

  1. pre-processing to reduce image noise from heterogeneities in the porous medium, without removing any important features.
    • the raw CT image input data will be smoothed to preserve the fine detailed structures, particularly the edges. ​
  2. initial image segmentation methods to extract the vessels in the morphology from the image as the initial data for refined segmentation. ​
  3. refined segmentation of the rough segmentation results using the level-set method.
    • the 3D surfaces and cross-sectional curve, the so-called “level-set function” and “zero level-set” respectively, will extract the boundary of the vessels.​
  4. visualisation methods to highlight specific features of the porous microstructure.​

Each of these stages requires careful implementation and correct choice of parameters to ensure an accurate determination of the porous morphology.

Outcomes

The outcomes of project will include the implementations of numerical algorithms and an understanding of their parameters, capabilities and limitations.

Skills and experience

To be considered for this research project, you'll need some experience with:

  • scientific visualisation
  • the numerical solution of differential equations
  • implementing numerical algorithms in MATLAB or other programming languages.​

Keywords

Contact

Contact the supervisors for more information.