Particle-based Visualization of Soft-Tissue: Deformation in the Human Orbit

Orbital fat is the soft tissue inside the eye socket, or orbit, that surrounds the eye muscles, eyeball, optic nerve and blood vessels. It plays an important role in the mechanical operation of the eye during eyeball rotation. Knowledge of how this orbital fat behaves is limited. It is important for surgeons to improve this knowledge to make...

Unbiased physically based rendering on the GPU

Since the introduction of General-Purpose GPU computing, significant increase has been made in performance for regular path tracing. However, more advanced versions of path tracing such as BiDirectional Path Tracing (BDPT) and Energy Redistribution Path Tracing (ERPT) have not been implemented successfully so far due to their stochastic sampling...

Adapting Particle Filter Algorithms to the GPU Architecture

The particle filter is a Bayesian estimation technique based on Monte Carlo simulations. The non-parametric nature of particle filters makes them ideal for non-linear non-Gaussian systems. This greater filtering accuracy, however, comes at the price of increased computational complexity which limits their practical use for real-time applications...

3D Information Extraction Based on GPU

Our project starts from a practical specific application of stereo vision (matching) on a robot arm, which is first building up a vision system for a robot arm to make it obtain the capability of detecting the objects 3D information on a plane. The kernel of the vision system is stereo matching. Stereo matching(correspondence) problem has been...

Biological Sequence Alignment Using Graphics Processing Units

Alignment algorithms are used to find similarity between biological sequences, such as DNA and proteins. By aligning a sequence with a database, similar sequences can be found. These can be used to identify the source of a query sequence, to find commonalities between organisms, or to infer an ancestral relation. Various methods of performing...

Speeding-up the CONTACT package by means of the Graphics Processing Unit

CONTACT is a computer program to calculate contact areas for 3D frictional contact problems. The program is maintained by VORtech BV. During the bachelor project, it is investigated if the GPU can be used to gain performance during certain parts of the calculations.

High-speed parallel processing on CUDA-enabled Graphics Processing Units

A new trend in computing is the use of multi-core processors and the use of Graphics Processing Units (GPUs) for general purpose high speed parallel computing. Therefore TNO wants to respond to the current trend of parallel computing and wants to investigate on which architectures they want to apply and parallelize their applications on. This...

Low Complexity Feature Point Detection and Tracking using CUDA

High speed feature point detection and tracking is very demanding for many realtime computer vision applications. In existing work, the commonly used feature point detection algorithms like Harris and KLT (Kanade-Lucas-Tomasi) and feature tracking algorithm (Pyramidal-KLT) were redesigned to increase the performance by reducing the algorithmic...

Ray Tracing NURBS Surfaces using CUDA

Several approaches have been made towards directly ray tracing NURBS-surfaces without first tessellating the surface. Some of these approaches have been implemented on the GPU in order to achieve interactive rates. This thesis presents CNRTS, a CUDA-based system capable of ray tracing NURBS-surfaces. In this system, the surfaces are subdivided...

Accelerating Computational Electromagnetic Diffraction Model on Programmable Graphics Processors

This thesis is done in the framework of wafer metrology to accelerate an electromagnetic diffraction model (EDM), which is used to measure the profile on a wafer, on programmable graphics processors (GPU). The main focus of this thesis is to investigate the suitability of EDM to GPU architectures. This study contributes with statistical data and...