(An) energy-aware hierarchical event detection in battery-operated wireless video surveillance systems = 배터리로 동작하는 무선 비디오 감시 시스템에서의 에너지를 고려한 계층적 사건 감지

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In battery-operated wireless video surveillance systems (WVSS), it is mostly required to detect events in an energy-efficient manner due to limited available energy and a huge amount of data to be processed. Therefore, one of the main challenges in the battery-constrained systems is to minimize the energy consumption of the whole system. In this paper, we present an energy-aware event detector which has a hierarchical decision architecture to maximize the system lifetime while achieving the required detection accuracy. An analytical model for the relationship between the complexity of the event detector and system performance is derived based on the given event characteristics. Finally, we suggest a heuristic search algorithm to significantly reduce the heavy computational complexity. Experimental results have shown that the proposed heuristic search algorithm provides 98.17% complexity reduction on average with a negligible deterioration of the system lifetime.
Advisors
Kyung, Chong-Minresearcher경종민researcher
Description
한국과학기술원 : 전기 및 전자공학과,
Publisher
한국과학기술원
Issue Date
2011
Identifier
467879/325007  / 020093143
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기 및 전자공학과, 2011.2, [ v, 25 p. ]

Keywords

Surveillance camera; Event detection; Low energy; Wireless sensor system; 무선 센서 시스템; 감시 카메라; 사건 감지; 저에너지

URI
http://hdl.handle.net/10203/36783
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=467879&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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