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반몰입형 가상현실 시스템을 이용한 게임 및 시지각 훈련 컨텐츠 개발
박동규,천미향,한경임 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-
A Fully immersive virtual reality system requires much cost and heavy equipments, therefore still far away from general-purpose equipment. Our system requires only CCD camera and beam projector system for implementing half-immersive virtual reality system. We acquire user's action from CCD camera and show interactive moving picture in 2-dimensional screen space. We implemented some kinds of digital contents on our system, which can be used in interactive computer game and for developing person's sense of eyesight and perception.
Review on the Operation, Administration, and Maintenance(OAM) of BcN
Chun, Kyung-Gyu,Song, Jong-Tae,Lee, Soon-Seok The Korea Institute of Information and Commucation 2006 Journal of communications and networks Vol.8 No.4
This paper briefly reviews ITU-T recommendations associated with multi protocol label switch (MPLS) and Ethernet operation, administration, and maintenance (OAM). The broadband convergence network (BcN) architecture with a centralized network controller is introduced. An aggregation structure employing Ethernet, MPLS, and time division multiplexing (TDM) signal is presented for the BcN. A physical link failure scenario is examined to investigate how the maintenance signal is propagated between different layers.