Computer Science in Freiberg

Konrad Froitzheim, TU Freiberg, Germanyfrz@tu-freiberg.de

• CS @ TUBAF• Institut für Informatik• Curriculae• Research Highlights

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/University/Computer Science

• 'Embedded' Computer Science– Geoinformatics– Mechatronics and Process Automation– Business Adminstrations

• Fakultät für Mathematik und Informatik– Numerik, Analysis, Stochastik– Discrete Mathematics => theoretical Computer Science

– curriculum Applied Mathematics

• Institut für Informatik– 4 professors, 10 assistants, …– applied and technical computer science– 2 curriculae– associated with 2 interdisciplinary curriculae – support for other curriculae

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/IfI/Curriculae

• Network Computing (Bachelor)– fundamentals and quick-start knowledge– 45% Mathematics– 35% Computer Science: software engineering, Internet technology

– engineering, Geo, business

• Network Computing (Master)– scientific applications– multimedia, visualization, virtual reality

• new: Applied Computer Science (Bachelor)– CS foundations– complex information systems– communication systems– applications: Geo, Material, Energy, Environment– Master planned

• Appl. Mathematics, GeoInformatik, Engineering and Computing

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/IfI/Research_Groups

• Virtual Reality (Bernhard Jung)– virtual workers: action capture, grasp recognition– embedding robots into VR– scientific visualization of high temperature processes

• Software Engineering (Bernd Steinbach)– high-dimensional Boolean problems– UML software engineering tools

• Database Systems and AI (Heinrich Jasper)– complex information systems

• Communication Technologies (Konrad Froitzheim)– Internet Multimedia– Virtual Presence, Virtual Instruments– extreme resolution displays and communication applications

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/IfI/X-site

• A unique CAVE– 24 HD Projectors

–14.000*2800 Pixel– floor projection system: 1920*1080– high precision tracking: 5mm @ 60Hz– 3D active stereo– 3D sound planned

• Research– extreme resolution visualization– present supercomputing simulations– immersive communications– interaction in immersive displays– zoomable interfaces

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/IfI/Research_Examples/Webvideo

• WebCam– video camera– digitization– compression– stream construction

• Streaming in a heterogeneous Internet– fast connections and slow hookups– individual streams for each viewer– scaling difficult

• CESC [Wolf, Froitzheim, 1998] [Pranke, Froitzheim, 2008]– decomposition: compression and streaming– pre-compression of video components: once– stream construction per client: many– tailored stream

componentencoder

filterΔDCTLZWHuffQuantWavelet Δ-GIF coderHTTPTP estimatorMPEG coderHTTPTP estimatorΔ-JPEG coderHTTPTP estimatorH.261 coderHTTPTP estimatorstreamcoder

Δ-GIF coderHTTPTP estimator

streamcoderstreamcoderstreamcoderstreamcoder

shared memory

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/IfI/Research_Examples/Robotics

• Problem: stand up– strategy– develop sequence of moves– fine control– hard to program, adjust

• Kinesthetik Bootstrapping– human shows move to robot – build model– transport to VR– genetic algorithm develops fine control– send back to robot [Ben Amor, Berger, Vogt 2009]

/TU Freiberg/Internet Multimedia/Konrad Froitzheim

/IfI

• Curriculae– network computing– applied computer science

• Scientific focus– virtual reality– software engineering– complex systems– Internet multimedia– robotics

• X-Site: Highest resolution CAVE in Europe