A mandatory requirement for future wireless multimedia communication is the availability of error resilient media codecs. This talk discusses error robust video coding and concealment techniques for scalable video transmission, with specific focus on signal-to-noise scalability. After an introduction, we will first concentrate on concealment methods using error frequency and error location statistics for efficient hiding of transmission errors. Based on simulation results it will be shown that scalable video coding outperforms single-layer coding under typical wireless conditions even if no priority or increased protection is applied to the base layer. In the second part, the combination of scalable progressive video coding techniques with suitable regressive error correction methods will be discussed. Verification results show that adapting the channel coding to scalable source coding can significantly improve the overall error resilience of video transmission.
Speaker: Dr. André Kaup,
Zentralabteilung Technik
Siemens AG, München
When: Thursday, 22nd February 2001, 11:00 am
Where: HS 3, University of Klagenfurt
André Kaup received the Dipl.-Ing. and Dr.-Ing. degrees in Electrical
Engineering from Aachen University of Technology (RWTH), Germany, in
1989 and 1995, respectively. From 1989 to 1995 he was with the
Institute for Communication Engineering at Aachen University of
Technology, where he was responsible for industrial as well as
academic research projects in the area of high resolution printed
image compression, object-based image analysis and coding, and models
for human perception. In 1995 he joined the Networks and Multimedia
Communications department at Siemens Corporate Technology in Munich as
senior principle research manager, where he is responsible for several
research projects in the area of very low bit rate video coding and
mobile multimedia communications. Dr. Kaup is Head of the Geman MPEG
delegation. He is a senior member of the IEEE and member of the German
Informationstechnische Gesellschaft (ITG/VDE).