This page lists some of the projects I have been involved with in the past.
Research
PetaMedia
The goal of the NoE PetaMedia is to bring together the research of four national networks in the Netherlands, Switzerland, UK and Germany in the area of multimedia content analysis (MCA) and social peer-to-peer networks and eventually to establish a European virtual centre of excellence.
The collective research that will integrate the four national networks will be directed towards the synergetic combination of user-based collaborative tagging, peer-to-peer networks and multimedia content analysis, and towards identification and exploration of potentials and limitations of combined tagging, MCA and SP2P concepts. Solutions and collaborative research field trials will be build on the coordinating partner's open source P2P software Tribler.
VISNET II
VISNET II brings together 12 leading European organisations in the field of Networked Audiovisual Media Technologies. The consortium consists of organisations known for their proven track record as well as both national and international reputations in audiovisual information technologies. VISNET II integrates a number of researchers who have made significant contributions to the advance of this field of technology through standardisation activities, international publications, conferences and workshops activities, patents as well as many other prestigious achievements. The 12 integrated organisations represent 7 European states spanning across a major part of Europe, thereby promising the efficient dissemination of resulting technological development and exploitation to larger communities.
K-Space
K-Space is a network of leading research teams from academia and industry conducting integrative research and dissemination activities in semantic inference for automatic and semi-automatic annotation and retrieval of multimedia content. K-Space exploits the complementary expertise of project partners, enables resource optimization and fosters innovative research in the field.
Multiple-Description Coding of Speech Signals
When transmitting real-time speech data over the internet to multiple receivers (multicast or broadcast), the quality on the receiving side depends on how many packets are lost on their way. Various receivers may experience greatly differing speech quality due to varying network conditions. Since in the multicast scenario delivery monitoring for all of the subscribed receivers is not feasible, action is needed on the receiving side.
To ensure graceful degradation of the perceived quality with increasing packet loss, multiple-description (MD) coding can be applied, i. e., the data which is to be transmitted is divided into two or more descriptions. Even if not all of them are received, the signal can still be decoded, albeit with lower quality.
In the course of this project, which was funded by the German Research Foundation, two different MD speech codecs were developed. To show the improvement due to MD coding over lossy channels, I also developed a demonstrator application (C++, Qt, Python).
Embedded Speech Coding
During my studies I worked as a student research assistant at the Fraunhofer-Institute for Telecommunications, Heinrich-Hertz-Institut. As a member of the Embedded Multimedia Group I was mainly responsible for projects related to speech coding. For my diploma thesis, for example, I optimized the ETSI AMR codec (3GPP TS 26.090, 3GPP TS 26.073) for real-time operation on a StrongARM platform (Compaq iPAQ, Embedded Linux). (C, Assembler)
Betty
Betty (German) is a remote control for your PC. This was a project as part of my electronics major. Basically, I was responsible for the radio communication part.
Web programming
HTML, CSS, PHP, SQL etc.
Ferienwohnungen Elke Weil
Ferienwohnungen Elke Weil in Wesel, Elke Weil's holiday flats in Wesel.
Büroservice Elke Weil
Elke Weil assists small firms as well as individuals in tidying up cluttered office desks.
This website uses a simple PHP template.
Elvera
Elvera is the publications archive of the Communication Systems Group. It is a custom-made set of PHP scripts to store all meta-data related to our publications. The data is stored in a MySQL database in the background. Elvera can export the publications list to BibTeX format as well as to CSV. The interface which allows to add new entries or to edit existing ones is accessible only from the intranet.
Boots Off
Boots Off play finest funk and jazz music. (I play the bass by the way.)
This website features, besides an embedded MP3 player, a simple guestbook written in PHP, which has up to now proven to be spam-resistent.
Tracy Melnyk Photography
Tracy Melnyk is a young photographer holding a degree in applied arts. She lives and works in Berlin.
This website uses AJAX techniques (CPAINT, PHP) and provides her with a simple directory based photo publishing system.
(T)EVTI
TEVTI (Technical English via the Internet, formerly known as EVTI) is an Internet-based learning system for Technical English, which is being developed by teachers, professional programmers and students at the Centre for Modern Languages at the Technical University of Berlin, Germany.
I used to contribute little snippets of PHP and Javascript code on a freelance basis.