Wireless Multimedia Sensor
Networks (WMSN)
Wireless Sensor
Networks (WSN) have recently been the focus of a significant amount of
attention and effort of the research community. The main motivation has been to
address the challenges posed by the WSN paradigm, i.e., limited node power,
processing, and communication capabilities, dense network deployment, multi-hop
communications, and heterogeneous application-specific requirements. The vast
majority of these studies applies to conventional WSN applications which need
reliable and efficient communication of scalar event features and sensor data
such as temperature, pressure, humidity.
With the availability of low-cost small-scale
imaging sensors, CMOS cameras, microphones, which may ubiquitously capture
multimedia content from the field, Wireless Multimedia Sensor Networks (WMSN)
have been proposed and drawn the immediate attention of the research community.
WMSN applications, e.g., multimedia surveillance networks, target tracking,
environmental monitoring, and traffic management systems, require effective
harvesting and communication of event features in the form of multimedia such
as audio, image, and video. To this end, additional challenges for
energy-efficient multimedia processing and communication in WMSN, i.e.,
heterogeneous multimedia reliability definitions, tight QoS expectations, and
high bandwidth demands, must be addressed as well.
Current research activities: We are building a WMSN Lab to
experiment with multimedia applications in sensor architectures. Frame
manipulation is required to minimize the amount of data to be sent. Visual
Computing techniques such as background subtraction, object recognition, etc,
may play an interesting role in this applications. We are also defining and
evaluating network protocols for WMSN taking into account traffic
characteristics.
Publications
- R.
Zilan, J. M. Barcelo-Ordinas, B. Tavli, Image Recognition Traffic
Patterns for Wireless Multimedia Sensor Networks, Fourth International
Workshop on Wireless and Mobility, Barcelona, Spain, Jan 2008. To be
published in Lecture Notes in Computer Science (LNCS).
- R.
Zilan, J. M. Barcelo-Ordinas, B. Tavli, A survey for Wireless Multimedia
Sensor Network Platforms, submitted to Journal Publication
People
Ruken Zilan, Sergio Navarro, José Mª Barceló-Ordinas
Collaboration with Dr. Bulent Tavli (TOBB Univ.
of Economics and Technology, Ankara, Turkey)
