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In all the researches in wireless sensor networks, cameras are increasingly utilized for their surveillance capabilities. In this paper, we elaborately discuss about the problem of Full-View Barrier Coverage with Rotatable Camera Sensors (FBR), including weakly and strongly connected versions. FBR is proven to be NP-hard in this paper by reducing Group Steiner Tree problem to it. Our goal is to reduce...
In wireless sensor networks, barrier coverage is a fundamental category of coverage problems and its surveillance capability can be reinforced when utilizing camera sensors. In this paper, we propose a distributed algorithm to solve the problem of Full-View Barrier Coverage with rotatable camera sensors (FBR). Our goal is to minimize the active sensor number when guaranteeing the surveillance capabilities...
This paper describes a system for automatically extracting meta-information on people from videos on the Web. The system contains multiple modules which automatically track people, including both faces and bodies, and clusters the people into distinct groups. We present new technology and significantly modify existing algorithms for body-detection, shot-detection and grouping, tracking, and track-clustering...
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