Presentation

Wireless cameras and audio-visual seamless networking.

The WCAM project is studying, developping and validating a wireless(WLAN) seamless and
secured end-to-end networked audio-visual system focused on the technology
convergence between video surveillance and multimedia distribution over the Internet. It
takes into account real time aspects as well as security and scalability. The project
improves state of the art technologies in each of the technological components involved in
the system and combine them. The WCAM system will be installed and tested with users of
both multimedia distribution and video surveillance communities. Recent progresses in
flexible bit streams representation of video including Region-of-lnterest (ROI) have led to
new standardisation efforts in the frame of JPEG-2000. WCAM will pursue and enforce
these works, integrating concerns like wireless, security, and annotations obtained by
high-level analysis. WCAM delivery scenario includes both JPEG-2000 and MPEG-4 AVC
platforms, which requires also to address the efficient and seamless transcoding between
these two recent standards.

The WCAM platform will include the following key modules: Camera video encoding
incorporating scene analysis, object tracking and adaptive and efficient video coding.
Automatic detection of events through scene analysis. Scalable access to video content
through transcoding and Scalable Video Coding of MPEG. Multimedia storage and
distribution. Wireless networking for local connectivity (WLAN). Security, both at the
network and content levels. Metadata driven access to content. The technologies and
systems developed within WCAM will be validated during two trials: the first trial will take
place in Annecy (France) during the festival of animated movies in 2005 the second trial
will be done in a video surveillance site and will demonstrate the ability to operate a video
surveillance platform on a wireless network, to secure the transactions.

Official Web site : wcam.epfl.ch