Department of Computer Science - Daimi Aarhus Universitet
Home |  Contact |  Research |  Courses |  Curriculum |  Library |  Local |  Search

People in Computer Graphics and Sound

People

Some of the people involved in research and teaching of computer graphics and sound are:

Peter Møller-Nielsen

Peter has teached the introductory course in 3D computer graphics and virtual reality for a number of years. He also teaches courses in parallel computation, and is collaborating with artists in exploiting the unique facilities of 3D graphics and interaction in the CAVI Panorama. Peter is the thesis advisor for a number of students.

Ole Caprani

Peter Ørbæk

Peter has co-taught the introductory course to 3D graphics in 2003 and 2004 together with Peter Møller-Nielsen. He is interested in real time 3D graphics as well as global illumination. He is the thesis advisor for a number of students specializing in computer graphics.

Thomas Sangild Sørensen

Thomas' research interests are mainly medical image processing, medical visualization and surgical simulation. His background is a masters degree in computer science and a PhD in medicine, both from the University of Aarhus. His focus in recent years has been to try to improve diagnostics and surgical planning in patients with congenital heart disease by
three-dimensional imaging and modeling.

Ph.d students

Michael Bang Nielsen

Michael work on interactive modeling based on level set representations. Level sets are dynamic implicit surfaces and were originally developed within the context of computational physics. However, in recent years, level sets have found application in computer graphics areas such as geometric modeling and water and fire simulations. Such simulations are
among the most desired in the sfx industry and have been applied in several newer motion pictures. The popularity of level sets is mainly due to their ability to easily represent complex deforming surfaces and account for changes in topological properties. Typically level sets are
sampled on a uniform grid and the propagation of the surface is described by a partial differential equation. Since a 2D dynamic implicit surface is represented on a 3D grid, strict limitations are imposed on the size of the 3D grid feasible in terms of memory requirements and computational resources. Existing narrow band methods account for the computational resource aspect by only solving for the level set propagation near the implicit surface as opposed to the entire 3D grid. However, the entire 3D grid is still represented in memory.

This project focuses on enhancing the practical feasibility of level sets with special attention to their application in geometrical modeling and rendering. Our research concentrates on developing sparse, adaptive representations and building novel geometrical modeling methodologies and tools.

Anders Brodersen

When working with polygon based models, a standard tool for adding extra details without increasing the number of polygons is texture mapping, where an image is painted on top of the polygons. One of the drawbacks of implicit models is that texturing an implicit model is not
as straight forward as with polygons. One advantage of implicit models on the other hand is that it is easy to alter the shape of the model. Because of this it is interesting to investigate the possibilities for using a texture to change the shape of the model in ways similar to bump/displacement mapping only taking advantage of the extra flexibility of the implicit model.

In this project I focus on developing novel algorithms for texturing dynamic implicit models and how this can be extended to enable arbitrary model deformations using geometric textures. Furthermore I'll be looking for answers to the question of how the texture should be affected when the shape of the model changes, as this is by no means obvious.

Jesper Mosegaard

Jesper is conducting the research for his PhD within the area of surgical simulation in cooperation with pediatric cardiac surgeons and craniofacial surgeons from Aarhus University Hospital. The main focus is currently real-time visualization and calculations of soft tissue models in 3d supporting cutting, as well as the clinical use of surgical simulators for pre-operative planning.

Masters students