Title :
Challenging issues in visual sensor networks
Author :
Charfi, Youssef ; Wakamiya, Naoki ; Murata, Masayuki
Author_Institution :
Bell Canada, Montreal, QC
fDate :
4/1/2009 12:00:00 AM
Abstract :
Wireless sensor networks are an important research area that has attracted considerable attention. Most of this attention, however, has been concentrated on WSNs that collect scalar data such as temperature and vibration. Scalar data can be insufficient for many applications such as automated surveillance and traffic monitoring. In contrast, camera sensors collect visual data, which are rich in information and hence offer tremendous potential when used in WSNs. However, they raise new challenges such as the transmission of visual data with high computational and bandwidth requirements in mainly low-power visual sensor networks. In this article we highlight the challenges and opportunities of VSNs. We discuss major research issues of VSNs, specifically camera coverage optimization, network architecture, and low-power visual data processing and communication, and identify enabling approaches in this area.
Keywords :
image sensors; optimisation; wireless sensor networks; WSN; automated surveillance; camera coverage optimization; camera sensors; low-power visual data processing; network architecture; scalar data; traffic monitoring; visual sensor networks; wireless sensor networks; Bandwidth; Cameras; Computer architecture; Computer networks; Computerized monitoring; Data processing; Surveillance; Telecommunication traffic; Temperature sensors; Wireless sensor networks;
Journal_Title :
Wireless Communications, IEEE
DOI :
10.1109/MWC.2009.4907559