Master Thesis
Last updated on Sunday 14 October, 2010
Introduction
In the year 2009-2010 I did my master thesis at the the Catholic University of Leuven. My thesis was based on a paper of Tobias Ritschel: Interactive Illumination with Coherent Shadow Maps. My promotor was Prof. dr. ir. Philip Dutré and my personal thesis coach was ir. Jurgen Laurijssen. The full (dutch) report of my thesis can be downloaded here (loading can take a while because of all the nice images :)).
Abstract
Rendering realistic shadows in 3D scenes typically requires many expensive visibility queries. The visibility information of a three dimensional object can however be pre-calculated using shadow maps. By exploiting the coherence between these maps, a compact and easily accessible representation is possible. This allows for real-time rendering of realistic shadows. In my thesis I investigated if a more compact representation of the shadow maps is possible, and how accurate the technique of coherent shadow maps is.
Pictures
Automated Brain Tumor Segmentation using MRI
Last updated on Tuesday 7 December, 2010
Description
For the course Computer Vision we had to write a program that was able to segmentate and classify all pathological structures in the human brain. With the help of MRI (Magnetic Resonance Images) we wrote a program in Matlab that would automatically detect all the different tissue types in the brain. This includes normal tissue types such as grey and white matter, but also the more violent tissues such as tumors and edema. The project was made together with Micheal Vanderheeren during spring 2010.
Keywords
- MRI (T1, T2, PD, T1 Enhanced)
- K-Means Clustering
- Fuzzy Clustering
- Thresholding
- Morphological Operators
Pictures
Left: Unhealthy brain with tumor (yellow) and edema (cyan). Right: Healthy brain.
Computer Animation - Mass Spring Damping System
Last updated on Thursday 9 December, 2010
Description
For the course Computer Animation (lectured at UHasselt) we experimented with some of the basic techniques in computer animation. A third project required the implementation of a mass-spring damping system using particles. Each vertex of a geometric model was represented by a particle. Between each pair of connected vertices, a spring was attached. When pulling one vertex away from the other, a force was applied to this spring. As this force propagates to neighbor vertices, the entire model responds in an attempt to retain its original form.
Keywords
- Physically-based animation
- Particles
- ODE-solvers
- Collision-detection and response
Pictures
Computer Animation - Deformation
Last updated on Thursday 9 December, 2010
Description
For the course Computer Animation (lectured at UHasselt) we experimented with some of the basic techniques in computer animation. The second project consisted of implementing Free-Form Deformation (FFD). Using FFD a geometric model is first placed in a (virtual) grid. This grid can then be deformed on the fly by the user. As the grid gets deformed, so does the geometric model inside.
Keywords
- Free-Form Deformation
- Global deformations
Pictures
FFD for an icosahedron using a 3x2x2 lattice of control points.
Computer Animation - Interpolation
Last updated on Thursday 9 December, 2010
Description
For the course Computer Animation (lectured at UHasselt) we experimented with some of the basic techniques in computer animation. The goal of the first project was to make a sphere follow a predefined path. In addition, speed curves had to be used to allow some variety in the acceleration and velocity of the sphere along the path.
Keywords
- Space curve
- Forward differencing
- Speed control (ease-in, ease-out)
Movie
Two spheres following a sinusoidal path. The blue sphere has a constant velocity. The red sphere has an increasing acceleration in the beginning, then achieves a constant velocity and in the end it deaccelerates.
Microgaming Mods
Last updated on Wednesday 7 October, 2009
AutoHotKey Script for Microgaming/Prima Poker v1.1
Allows the player to use customized hotkeys for folding, checking, calling and betting. Up to 6 programmable hotkeys in total. Only works on the Microgaming/Prima network. Mini-tables are not supported. Tables can be resized freely. See comments in script for instructions. Requires AutoHotKey. Download
Table Mod for Microgaming/Prima Poker v1.0
Contains a customized table background, larger rating images and a four-color deck. See screenshot below. The deck was made by Paul Gibson. See readme file for installation instructions. Download
