• Title/Summary/Keyword: Computer Lab

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A novel architecture for localized key management in wireless sensor networks

  • Raazi, Syed Muhammad Khaliq-ur-Rahman;Lee, Sung-Young;Song, Young-Jae;Lee, Young-Koo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2007.05a
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    • pp.1091-1092
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    • 2007

  • Wireless sensor networks (WSN) can be used in military surveillance, in which highly confidential data needs to be transmitted. In effect, security becomes a very important aspect in such networks. We present an efficient key management scheme for WSN. Our scheme is an improvement over SHELL [1] and mostly relies on communication within a cluster of nodes.

  • https://doi.org/10.3745/PKIPS.y2007m05a.1091 인용 PDF

Integrated Approach of Multiple Face Detection for Video Surveillance

  • Kim, Tae-Kyun;Lee, Sung-Uk;Lee, Jong-Ha;Kee, Seok-Cheol;Kim, Sang-Ryong
    • Proceedings of the IEEK Conference
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    • 2003.07e
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    • pp.1960-1963
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    • 2003

  • For applications such as video surveillance and human computer interface, we propose an efficiently integrated method to detect and track faces. Various visual cues are combined to the algorithm: motion, skin color, global appearance and facial pattern detection. The ICA (Independent Component Analysis)-SVM (Support Vector Machine based pattern detection is performed on the candidate region extracted by motion, color and global appearance information. Simultaneous execution of detection and short-term tracking also increases the rate and accuracy of detection. Experimental results show that our detection rate is 91％ with very few false alarms running at about 4 frames per second for 640 by 480 pixel images on a Pentium IV 1㎓.

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