Abstract: An interactive renderer was implemented that allows users to preview the effects of imaging with lenses, such as depth of field, bokeh (defocus highlights) and tilt-shift lens configurations. It is based on a state-of-the-art method which combines the power of GPU rasterization and ray tracing. Many models and interactive visualizations were created. A non-interactive simulation of a complex geometrical lens model has been made which is able to produce optical aberrations. Also a prototype implementation of recent fast spreading filters is available. A thorough summary of the principles of optical image formation, lens models and depth of field rendering methods used in computer graphics is given along with a comparison of the approaches and new insights. New possibilities of representing the behavior of complex lenses are suggested, which could be employed to accelerate the rendering.

thesis text (7.2 MB)
project site
slides
GitHub repo
Supervisor: Alexander Wilkie
Technologies: C#, GLSL, .NET, OpenTK, OpenGL, Mathematica, LaTeX, Git, VPython, C++, Ogre3D

Halftone Laboratory

Bachelor thesis

Advanced Halftoning Methods

Abstract: The goal of the thesis was to design and implement a modular library for digital halftoning methods. The aim were photorealistic methods utilizing space- filling curves and blue-noise, artistic methods were considered as well. From the point of view of software design, emphasis was on modularity and extensibility, in order to support experimenting, even with new algorithms. The library along with a graphical user interface has been integrated as a plug-in with the framework of a popular image-processing application GIMP.

thesis text (0.5 MB)
HalftoneLab
- GitHub repo
- Project page at Sourceforge - download
Supervisor: Josef Pelikán
Technologies: C#, .NET, Gtk#, GIMP#, SVN, MS Visual Studio, LaTeX

XRouter

Software Project (NPRG023)
XML router - a lightweight alternative to ESB
C#, .NET, XML, Schematron, Git
GitHub, Assembla project site
team of five people
Supervisor: Martin Nečaský

Volume ray-casting (direct volume rendering)

Visualization
C#, GLSL, OpenTK
videos: 1, 2, 3, 4

Isocontours

Visualization (NPGR023)
C#, GLSL, OpenTK

Point in polygon location

Applied Computational Geometry (NPGR016)
C#, WinForms, OpenTK

Voronoi mosaic

Applied Computational Geometry (NPGR016)
C#, poly2tri-cs, WinForms, OpenTK
repo

Rotation-minimizing frame

Geometry for Computer Graphics (NPGR020)
Visual Python
repo

RenderMan shaders

Shading Languages (NPGR027)
RenderMan Shading Language

Fast screencast video codec

Image-based lighting

Computer Graphics III (NPGR010)
Java, JaGrLib

Path tracing

Computer Graphics III (NPGR010)
Java, JaGrLib

Black & white image compression

Advanced 2D Computer Graphics
C#
repo

Point feature warping

Advanced 2D Computer Graphics
C#
repo

Concurrency Patterns

Design Patterns (NPRG024)
presentation of design and architecture patterns - PDF, PPT
Active Object, Monitor Object, Half-Sync/Half-Async, Leader/Followers, Thread-Specific Storage

optparse-net

Recommended Programming Practices (NPRG043)
library for command-line argument parsing with usage inspired by Python's optparse
C#, .NET, NAnt, NUnit, SVN, MS Visual Studio
repo
two-people teamwork

Hovercraft

Hardware for Computer Graphics (NPGR019)
using spline curves for smooth animation of movements
C++, OpenGL, SDL, MS Visual Studio

Raytracing of rotational Bezier surfaces

JaGrLib module
Java, SVN, Eclipse

Swan Carousel

Virtual Reality (NPGR012)
interactive virtual reality model
GitHub repo
VRML, Javascript, SVN
three-people teamwork

JaCoMo - Jabber Contact Monitor

Java (NPRG013)
monitoring of statuses of people in a jabber contact list, archiving, visualization
GitHub repo
Java, J2SE, Swing, Smack, SVN, NetBeans

Pango

Programming II (PRG031)
remake of the old Pango game, a clone of Pengo
GitHub repo
C#, .NET, SVN, MS Visual Studio

GeToDo

Individual software project (NPRG045)
a TODO list
C++, Boost, GTK+, gtkmm, SVN, autotools, MS Visual Studio

Metro

Probability and Statistics (NMAI059)
R statistical suite

JaGrLib modules

Guilloché, SFC Dither with adaptive clustering, Mosaic
modules for a educational computer graphics library
Computer graphics I (NPGR003)
Java, NetBeans

Logic Gate Network simulator

C# Language and .NET Framework (NPRG035)
GitHub repo
C#, MS Visual Studio

Infix calculator

Java (NPRG013)
Java SE, NetBeans

FFT and spectral analyzer

Frak - fractal rendering

Programming I (PRG030)
Mandelbrot and Julia sets
C, OpenGL, GLUT