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Video surveillance system, which can provide real-time display of the monitored scene and video playback, has been employed in many areas including: commercial security, accident investigation, law enforcement and emergency response. However, audio which carries important information not available in video is usually not taken seriously and used effectively. In this paper, we develop an enhanced surveillance...
In Wireless Audio Sensor Networks (WASNs), many applications such as target tracking, data fusion and localization, often require precise synchronization among audio streams. Extensive researches have been done under the assumption that wireless channel is well enough and the cluster head is power supplied. However, these conditions can not be satisfied in many applications. When audio event occurs,...
Wireless Audio Sensor Networks (WASNs) can provide event detection, object tracking and emergency response through cooperative audio sensor nodes. Effective collaboration of audio sensors requires precise synchronization among audio streams. Some researches have been done on the timestamp mechanism based on time synchronization ignoring propagation delay and many other researches have focused on the...
Wireless Audio Sensor Networks (WASNs) can provide event detection, object tracking and audio stream monitoring through cooperative audio sensor nodes. Extensive researches have focused on sound detection and source localization, but little work is on the monitoring and recovery of audio stream. To clearly reconstruct the real-time audio stream from WASNs, both the quantity and quality of samples...
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