Synthetic Cell Aspirations: A Toolbox for Building a Membrane Container from the Bottom Up

Everything that we consider alive, be it plants, dogs, bacteria or humans, is composed of the same microscopic building blocks: cells. While cells between and even within these organisms can look and behave very differently, they all share the same key functionalities: they can grow, they can divide to proliferate, they can eat and metabolise to...

Study of foam in model fractures: coarsening, gas trapping and gravity effects

Naturally fractured reservoirs (NFRs) gain much attention worldwide because they are often encountered in aquifer remediation, CO2 sequestration, and hydrocarbon extraction. In hydrocarbon extraction, however, oil recovery by gas injection in NFRs is usually low, because of poor sweep efficiency. During gas injection, the displacement front is...

Image analysis to measure sorting and stratification applied to sand-gravel experiments

The main objective of this project is to develop new measuring techniques for providing detailed data on sediment sorting suitable for sand-gravel laboratory experiments. Such data will be of aid in obtaining new insights on sorting mechanisms and improving prediction capabilities of morphodynamic models. Two measuring techniques have been...

Uncertainty quantification in particle image velocimetry and advances in time-resolved image and data analysis

Particle Image Velocimetry (PIV) is a well-established technique for the measurement of the flow velocity in a two or three-dimensional domain. As in any other technique, PIV data is affected by measurement errors, defined as the difference between the measured velocity and its actual value, which is unknown. Aim of uncertainty quantification is...

Multi-Scale Pattern Recognition for Image Classification and Segmentation

Scale is an important parameter of images. Different objects or image structures (e.g. edges and corners) can appear at different scales and each is meaningful only over a limited range of scales. Multi-scale analysis has been widely used in image processing and computer vision, serving as the basis for many high-level image analysis systems....

Orientation Analysis; multi-valuedness and shape descriptors

Computational Modelling of Particle Packing in Concrete

Physical particle packing is becoming a hot topic in concrete technology as more and more types of granular materials are used in concrete either for ecological or for engineering purposes. Although various analytical methods have been developed for optimum mixture design, comprehensive information on particle packing properties is still missing...

The structure of three-dimensional sheet cavitation

Structure from Motion in nD Image Analysis

In this thesis we investigate the measurement of local properties in multi-dimensional grey-value images. Special attention is given to orientation representation and curvature estimation. Furthermore, the possibility to compute global shape properties from these local properties. We aim to derive sampling-error free measurements. A sampling...

Structure Characterization Using Mathematical Morphology

This thesis deals with the application of mathematical morphology to images of some kind of structure, with the intention of characterizing (or describing) that structure. The emphasis is placed on measuring properties of the real-world scene, rather than measuring properties of the digital image. That is, we require that the measurement tools...

Automated Image Analysis of FISH-Stained Cell Nuclei

Supervised boundary formation

Quantitative analysis in confocal image cytometry