Department of Applied Mathematics
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Hand vein-based biometric authentication with limited training samples
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT : A number of novel hand vein-based biometric authentication systems are proposed. Said systems are non-intrusive and may for example assist with user authentication at automated teller machines. An ... -
Short-term stream flow forecasting and downstream gap infilling using machine learning techniques
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT : Stream flow is an important component in the hydrological cycle and plays a vital role in many hydrological applications. Accurate stream flow forecasts may be used for the study of various hydro-environmental ... -
Automated elephant detection and classification from aerial infrared and colour images using deep learning
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT : In this study we attempt to detect and classify elephants in aerial images using deep learning. This is not a trivial task even for a human since elephants naturally blend in with their surroundings, making ... -
Developing a methodology for the assessment of wave energy along the South African Coast
(Stellenbosch : Stellenbosch University, 2018-03-19)ENGLISH ABSTRACT : Ocean wave energy can become one of the alternative energy resources for fossil-fuelled power generation in South Africa. Due to global warming, several studies about the generation of wave energy have ... -
Modifying and generalising the Radon transform for improved curve-sensitive feature extraction
(Stellenbosch : Stellenbosch University, 2017-12-01)ENGLISH ABSTRACT : In this thesis a novel and generic feature extraction protocol that is based on the well-known standard discrete Radon transform (SDRT) is presented. The SDRT is traditionally associated with computerised ... -
Predicting the effect of biofilm growth on the pressure drop over a biofilter
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT : Hydrogen sulphide is a poisonous gas produced by several industries. It is therefore crucial to investigate and mathematically model the environmentally friendly biofiltration process, which has the ... -
Die fassinerende meganika van hoppende fietswiele
(LitNet, 2016-05-26)Die gedrag van eksentries-belaaide wiele of hoepels het tydens die afgelope twee dekades aandag geniet, veral met betrekking tot sulke wiele se geneigdheid om te hop. Hier word ’n oorsig gegee oor die verskillende aspekte ... -
Text detection in natural images using convolutional neural networks
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT : In this study we attempt to solve the problem of text detection in natural images. This requires us to identify regions in a natural image that contain text. Possible applications range from assistive ... -
Shark identification using the notches in the dorsal fin
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT : In order to protect endangered species, such as the Great White shark, a reliable estimate of the population is needed. In counting animals, it is necessary to be able to distinguish between individuals. ... -
Tracking with context
(Stellenbosch : Stellenbosch University, 2016-12-01)ENGLISH ABSTRACT : Tracking in an unconstrained environment presents a difficult challenge. Abrupt object motion, appearance changes, non-rigid objects and occlusion are but a few of the trials faced. To overcome these ... -
The study of similarity score calculation methods for minutia-based fingerprint matching algorithms
(Stellenbosch : Stellenbosch University, 2016-11)ENGLISH ABSTRACT : This study aims to establish guidelines for calculating the similarity score between two minutia point representations of ngerprints for minutia-based ngerprint matching. Existing research does not ... -
Internal ballistic modelling of solid rocket motors using level set methods for simulating grain burnback
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT : Solid Rocket Motors are propulsive systems providing thrust from products exiting through a nozzle, obtained by burning a solid fuel (the grain) inside a chamber. Various thrust profiles can be obtained ... -
Image deblurring and blur kernel estimation of motion blurred colour photographs
(Stellenbosch : Stellenbosch University, 2016-02-23)ENGLISH ABSTRACT : Blurred images can be restored using known deconvolution methods. Image blur can be caused by various factors during the image acquisition phase, such as camera defocus or motion. The restoration of ... -
A probabilistic graphical model approach to solving the structure and motion problem
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Probabilistic graphical models show great promise in resolving uncertainty within large systems by using probability theory. However, the focus is usually on problems with a discrete representation, or ... -
The implementation of the discontinuous Galerkin method for two-dimensional Maxwell equations in Nektar++
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT : Maxwell's equations consist of various laws of electromagnetism and can be written in two different modes in two dimensions: the transverse electric(TE) mode and the transverse magnetic(TM) mode. Various ... -
Time series analysis of data measured in the nearshore area
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT : Factors that lead to the generation of currents in the nearshore area within the Natal Bight were investigated. The investigation was carried out on data that spans from the 6th June 2012 to the 16th ... -
scikit-image : image processing in Python
(PeerJ, 2014-06-19)scikit-image is an image processing library that implements algorithms and utilities for use in research, education and industry applications. It is released under the liberal Modified BSD open source license, provides a ... -
Writer-independent handwritten signature verification
(Stellenbosch : Stellenbosch University, 2015-12)AFRIKAANSE OPSOMMING : In hierdie verhandeling stel ons 'n nuwe strategie vir outomatiese handtekening-verifikasie voor. Die voorgestelde raamwerk gebruik 'n skrywer-onafhanklike benadering tot handtekening- modellering ... -
Incipient motion of shells and shell fragments
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT : In the present study, the erosion characteristics of shells and shell fragments are investigated. When shells settle, they settle like leaves, where the biggest cross section is exposed to the drag, ... -
Analysis of Extreme Events in the Coastal Engineering Environment
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT : Coastal zones are subject to storm events and extreme waves with certain return periods. The return period of such events is defined as the average time interceding two independent, consecutive events, ...
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